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6310 bearing dimensions & suffix variants

Look up recorded dimensions for designations beginning with 6310. The table retains complete manufacturer designations so special suffixes and different dimensional variants remain visible.

On this page5 sections

Find by measured dimensions

Enter bore d, outside diameter D and width B. Use decimals or inch fractions such as 1/2 or 1 1/4.

Exact model evidence

6310 dimensions and recorded technical data

The recorded 6310 base designation measures 50×110×27 mm (inside diameter d × outside diameter D × width B). This answer uses unsuffixed records from SKF, FAG, NSK, KOYO, NACHI, NTN. It does not assign the same dimensions or operating ratings to every suffix.

The numeric series boundary is preserved: a longer number is not included merely because its first digits match. 160 recorded variants are listed. A dash means the value is missing, not zero.

Measurement details

Read the original dimensions for 6310

Boundary size alone does not describe every ring, shoulder or assembled unit. These tables retain the recorded manufacturer labels, symbols, units and limits for each complete marking. Expand a record to check its detailed measurements.

Important: an approximate value, a minimum or a maximum keeps that qualifier. These reference extracts are not CAD drawings, fit recommendations or replacement approvals.

SKF 6310 NR — 21 dimension fields

Deep groove ball bearing with snap ring. Source: SKF product catalogue; recorded snapshot 2026-09-02.

Use the complete designation shown here. A seal, cage, clearance or precision suffix can matter even when nominal boundary dimensions match.

Minimum and maximum mounting dimensions are limits, not nominal bearing dimensions. Check shaft/housing shoulders and fillets against the current drawing before designing a seat.

Bearing and component measurements

Measurement	Source symbol	Recorded value
Bore diameter	d	50 mm
Deviation limits of mid-range bore diameter	t Δdmp	-0.01 to 0 mm
Outside diameter	D	110 mm
Deviation limits of mid-range outside diameter	t ΔDmp	-0.013 to 0 mm
Width	B	27 mm
Deviation limits of ring width	t ΔBs	-0.06 to 0 mm
Shoulder diameter	d 1	≈ 68.76 mm
Recess diameter	D 2	≈ 95.2 mm
Diameter of snap ring groove	D 3	106.81 mm
Outside diameter of snap ring	D 4	116.6 mm
Width of snap ring groove	b	2.7 mm
Distance from outer ring side face to snap ring groove	C	3.28 mm
Width of snap ring	f	2.46 mm
Bottom radius of snap ring groove	r 0	max. 0.6 mm
Chamfer dimension	r 1,2	min. 2 mm

Mounting limits and abutments

Measurement	Source symbol	Recorded value
Diameter of shaft abutment	d a	min. 61 mm
Diameter of housing abutment	D a	max. 99 mm
Diameter of snap ring recess in the housing	D b	min. 118 mm
Width of snap ring recess in the housing	b a	min. 3 mm
Distance from outer ring side face to snap ring back face	C a	max. 5.74 mm
Radius of shaft or housing fillet	r a	max. 2 mm

Open the complete SKF 6310 NR record →

SKF 6310-2Z/C3 — 3 dimension fields

Deep groove ball bearing with seals or shields. Source: SKF product catalogue; recorded snapshot 2026-09-02.

The source gives named dimensions but no drawing symbol for some values. An unqualified width is not relabelled as inner-ring B or assembly T.

Use the complete designation shown here. A seal, cage, clearance or precision suffix can matter even when nominal boundary dimensions match.

Bearing and component measurements

Measurement	Source symbol	Recorded value
Bore diameter	Not supplied separately	50.0 mm
Outside diameter	Not supplied separately	110.0 mm
Width	Not supplied separately	27.0 mm

Open the complete SKF 6310-2Z/C3 record →

SKF 6310-Z — 13 dimension fields

Deep groove ball bearing with seals or shields. Source: SKF product catalogue; recorded snapshot 2026-09-02.

Use the complete designation shown here. A seal, cage, clearance or precision suffix can matter even when nominal boundary dimensions match.

Minimum and maximum mounting dimensions are limits, not nominal bearing dimensions. Check shaft/housing shoulders and fillets against the current drawing before designing a seat.

Bearing and component measurements

Measurement	Source symbol	Recorded value
Bore diameter	d	50 mm
Deviation limits of mid-range bore diameter	t Δdmp	-0.01 to 0 mm
Outside diameter	D	110 mm
Deviation limits of mid-range outside diameter	t ΔDmp	-0.013 to 0 mm
Width	B	27 mm
Deviation limits of ring width	t ΔBs	-0.06 to 0 mm
Shoulder diameter	d 1	≈ 68.76 mm
Recess diameter	D 2	≈ 95.2 mm
Chamfer dimension	r 1,2	min. 2 mm

Mounting limits and abutments

Measurement	Source symbol	Recorded value
Diameter of shaft abutment	d a	min. 61 mm
Diameter of shaft abutment	d a	max. 68.7 mm
Diameter of housing abutment	D a	max. 99 mm
Radius of shaft or housing fillet	r a	max. 2 mm

Open the complete SKF 6310-Z record →

SKF 6310/C3 — 3 dimension fields

Deep groove ball bearing. Source: SKF product catalogue; recorded snapshot 2026-09-02.

The source gives named dimensions but no drawing symbol for some values. An unqualified width is not relabelled as inner-ring B or assembly T.

Use the complete designation shown here. A seal, cage, clearance or precision suffix can matter even when nominal boundary dimensions match.

Bearing and component measurements

Measurement	Source symbol	Recorded value
Bore diameter	Not supplied separately	50.0 mm
Outside diameter	Not supplied separately	110.0 mm
Width	Not supplied separately	27.0 mm

Open the complete SKF 6310/C3 record →

SKF 6310 — 12 dimension fields

Deep groove ball bearing. Source: SKF product catalogue; recorded snapshot 2026-09-02.

Use the complete designation shown here. A seal, cage, clearance or precision suffix can matter even when nominal boundary dimensions match.

Minimum and maximum mounting dimensions are limits, not nominal bearing dimensions. Check shaft/housing shoulders and fillets against the current drawing before designing a seat.

Bearing and component measurements

Measurement	Source symbol	Recorded value
Bore diameter	d	50 mm
Deviation limits of mid-range bore diameter	t Δdmp	-0.01 to 0 mm
Outside diameter	D	110 mm
Deviation limits of mid-range outside diameter	t ΔDmp	-0.013 to 0 mm
Width	B	27 mm
Deviation limits of ring width	t ΔBs	-0.06 to 0 mm
Shoulder diameter	d 1	≈ 68.76 mm
Recess diameter	D 2	≈ 95.2 mm
Chamfer dimension	r 1,2	min. 2 mm

Mounting limits and abutments

Measurement	Source symbol	Recorded value
Diameter of shaft abutment	d a	min. 61 mm
Diameter of housing abutment	D a	max. 99 mm
Radius of shaft or housing fillet	r a	max. 2 mm

Open the complete SKF 6310 record →

FAG 6310 — 10 dimension fields

Deep groove ball bearing. Source: Schaeffler medias — FAG; recorded snapshot 2026-09-02.

Use the complete designation shown here. A seal, cage, clearance or precision suffix can matter even when nominal boundary dimensions match.

Minimum and maximum mounting dimensions are limits, not nominal bearing dimensions. Check shaft/housing shoulders and fillets against the current drawing before designing a seat.

Bearing and component measurements

Measurement	Source symbol	Recorded value
Bore diameter	d	50 mm
Outside diameter	D	110 mm
Width	B	27 mm
Minimum chamfer dimension	rmin	2 mm
Shoulder diameter outer ring	D1	91.83 mm
Caliber diameter outer ring	D2	95.1 mm
Shoulder diameter inner ring	d1	68 mm

Mounting limits and abutments

Measurement	Source symbol	Recorded value
Minimum diameter shaft shoulder	da min	61 mm
Maximum diameter of housing shoulder	Da max	99 mm
Maximum fillet radius	ra max	2 mm

Open the complete FAG 6310 record →

FAG 6310-C3 — 10 dimension fields

Deep groove ball bearing. Source: Schaeffler medias — FAG; recorded snapshot 2026-09-02.

Use the complete designation shown here. A seal, cage, clearance or precision suffix can matter even when nominal boundary dimensions match.

Minimum and maximum mounting dimensions are limits, not nominal bearing dimensions. Check shaft/housing shoulders and fillets against the current drawing before designing a seat.

Bearing and component measurements

Measurement	Source symbol	Recorded value
Bore diameter	d	50 mm
Outside diameter	D	110 mm
Width	B	27 mm
Minimum chamfer dimension	rmin	2 mm
Shoulder diameter outer ring	D1	91.83 mm
Caliber diameter outer ring	D2	95.1 mm
Shoulder diameter inner ring	d1	68 mm

Mounting limits and abutments

Measurement	Source symbol	Recorded value
Minimum diameter shaft shoulder	da min	61 mm
Maximum diameter of housing shoulder	Da max	99 mm
Maximum fillet radius	ra max	2 mm

Open the complete FAG 6310-C3 record →

FAG 6310-2Z-C3 — 10 dimension fields

Deep groove ball bearing. Source: Schaeffler medias — FAG; recorded snapshot 2026-09-02.

Use the complete designation shown here. A seal, cage, clearance or precision suffix can matter even when nominal boundary dimensions match.

Minimum and maximum mounting dimensions are limits, not nominal bearing dimensions. Check shaft/housing shoulders and fillets against the current drawing before designing a seat.

Bearing and component measurements

Measurement	Source symbol	Recorded value
Bore diameter	d	50 mm
Outside diameter	D	110 mm
Width	B	27 mm
Minimum chamfer dimension	rmin	2 mm
Shoulder diameter outer ring	D1	91.83 mm
Caliber diameter outer ring	D2	95.1 mm
Shoulder diameter inner ring	d1	68 mm

Mounting limits and abutments

Measurement	Source symbol	Recorded value
Minimum diameter shaft shoulder	da min	61 mm
Maximum diameter of housing shoulder	Da max	99 mm
Maximum fillet radius	ra max	2 mm

Open the complete FAG 6310-2Z-C3 record →

FAG 6310-Z — 10 dimension fields

Deep groove ball bearing. Source: Schaeffler medias — FAG; recorded snapshot 2026-09-02.

Use the complete designation shown here. A seal, cage, clearance or precision suffix can matter even when nominal boundary dimensions match.

Minimum and maximum mounting dimensions are limits, not nominal bearing dimensions. Check shaft/housing shoulders and fillets against the current drawing before designing a seat.

Bearing and component measurements

Measurement	Source symbol	Recorded value
Bore diameter	d	50 mm
Outside diameter	D	110 mm
Width	B	27 mm
Minimum chamfer dimension	rmin	2 mm
Shoulder diameter outer ring	D1	91.83 mm
Caliber diameter outer ring	D2	95.1 mm
Shoulder diameter inner ring	d1	68 mm

Mounting limits and abutments

Measurement	Source symbol	Recorded value
Minimum diameter shaft shoulder	da min	61 mm
Maximum diameter of housing shoulder	Da max	99 mm
Maximum fillet radius	ra max	2 mm

Open the complete FAG 6310-Z record →

FAG 6310-NR — 10 dimension fields

Deep groove ball bearing. Source: Schaeffler medias — FAG; recorded snapshot 2026-09-02.

Use the complete designation shown here. A seal, cage, clearance or precision suffix can matter even when nominal boundary dimensions match.

Minimum and maximum mounting dimensions are limits, not nominal bearing dimensions. Check shaft/housing shoulders and fillets against the current drawing before designing a seat.

Bearing and component measurements

Measurement	Source symbol	Recorded value
Bore diameter	d	50 mm
Outside diameter	D	110 mm
Width	B	27 mm
Minimum chamfer dimension	rmin	2 mm
Shoulder diameter outer ring	D1	91.83 mm
Caliber diameter outer ring	D2	95.1 mm
Shoulder diameter inner ring	d1	68 mm

Mounting limits and abutments

Measurement	Source symbol	Recorded value
Minimum diameter shaft shoulder	da min	61 mm
Maximum diameter of housing shoulder	Da max	99 mm
Maximum fillet radius	ra max	2 mm

Open the complete FAG 6310-NR record →

KOYO 6310 — 3 dimension fields

Deep groove ball bearing. Source: JTEKT / Koyo product catalogue; recorded snapshot 2026-09-02.

Use the complete designation shown here. A seal, cage, clearance or precision suffix can matter even when nominal boundary dimensions match.

Bearing and component measurements

Measurement	Source symbol	Recorded value
Bore diameter	d	50 mm
Outside diameter	D	110 mm
Width	B	27 mm

Open the complete KOYO 6310 record →

KOYO 6310 2RS — 3 dimension fields

Deep groove ball bearing. Source: JTEKT / Koyo product catalogue; recorded snapshot 2026-09-02.

Use the complete designation shown here. A seal, cage, clearance or precision suffix can matter even when nominal boundary dimensions match.

Bearing and component measurements

Measurement	Source symbol	Recorded value
Bore diameter	d	50 mm
Outside diameter	D	110 mm
Width	B	27 mm

Open the complete KOYO 6310 2RS record →

KOYO 6310 ZZ — 3 dimension fields

Deep groove ball bearing. Source: JTEKT / Koyo product catalogue; recorded snapshot 2026-09-02.

Use the complete designation shown here. A seal, cage, clearance or precision suffix can matter even when nominal boundary dimensions match.

Bearing and component measurements

Measurement	Source symbol	Recorded value
Bore diameter	d	50 mm
Outside diameter	D	110 mm
Width	B	27 mm

Open the complete KOYO 6310 ZZ record →

KOYO 6310NR — 3 dimension fields

Deep groove ball bearing. Source: JTEKT / Koyo product catalogue; recorded snapshot 2026-09-02.

Use the complete designation shown here. A seal, cage, clearance or precision suffix can matter even when nominal boundary dimensions match.

Bearing and component measurements

Measurement	Source symbol	Recorded value
Bore diameter	d	50 mm
Outside diameter	D	110 mm
Width	B	27 mm

Open the complete KOYO 6310NR record →

TIMKEN 6310-RS — 4 dimension fields

Deep groove ball bearing. Source: Timken official dimensional catalogue; recorded snapshot 2026-10-01.

Metric and inch measurements below are the values published together in this dated manufacturer record. Their displayed rounding is retained; the inch column does not turn a metric design into an inch-series design.

Keep the full marking shown for this record. Equal nominal dimensions do not establish matching closure, clearance, precision, material or operating limits.

Shaft and housing backing-shoulder dimensions, maximum fillet radii and signed offsets answer different installation questions. Preserve the named face, limit and sign; they are not additional bearing outside diameters or nominal widths.

This factual extract is a dimensional reference, not an OEM fitment statement, a replacement approval or a downloadable CAD model.

Bearing and component measurements

Measurement	Source symbol	Recorded value
Bore (d)	d	50 mm
O.D. (D)	D	110 mm / 4.331 in
Width (B)	B	27 mm / 1.063 in

Mounting limits and abutments

Measurement	Source symbol	Recorded value
Max Shaft Fillet Radius	Not supplied separately	2.0 mm / 0.079 in

Open the complete TIMKEN 6310-RS record →

TIMKEN 6310-Z — 4 dimension fields

Deep groove ball bearing. Source: Timken official dimensional catalogue; recorded snapshot 2026-10-01.

Keep the full marking shown for this record. Equal nominal dimensions do not establish matching closure, clearance, precision, material or operating limits.

This factual extract is a dimensional reference, not an OEM fitment statement, a replacement approval or a downloadable CAD model.

Bearing and component measurements

Measurement	Source symbol	Recorded value
Bore (d)	d	50 mm
O.D. (D)	D	110 mm / 4.331 in
Width (B)	B	27 mm / 1.063 in

Mounting limits and abutments

Measurement	Source symbol	Recorded value
Max Shaft Fillet Radius	Not supplied separately	2.0 mm / 0.079 in

Open the complete TIMKEN 6310-Z record →

TIMKEN 6310-ZZ — 4 dimension fields

Deep groove ball bearing. Source: Timken official dimensional catalogue; recorded snapshot 2026-10-01.

Keep the full marking shown for this record. Equal nominal dimensions do not establish matching closure, clearance, precision, material or operating limits.

This factual extract is a dimensional reference, not an OEM fitment statement, a replacement approval or a downloadable CAD model.

Bearing and component measurements

Measurement	Source symbol	Recorded value
Bore (d)	d	50 mm
O.D. (D)	D	110 mm / 4.331 in
Width (B)	B	27 mm / 1.063 in

Mounting limits and abutments

Measurement	Source symbol	Recorded value
Max Shaft Fillet Radius	Not supplied separately	2.0 mm / 0.079 in

Open the complete TIMKEN 6310-ZZ record →

TIMKEN 6310-ZZ-C3 — 4 dimension fields

Deep groove ball bearing. Source: Timken official dimensional catalogue; recorded snapshot 2026-10-01.

Keep the full marking shown for this record. Equal nominal dimensions do not establish matching closure, clearance, precision, material or operating limits.

This factual extract is a dimensional reference, not an OEM fitment statement, a replacement approval or a downloadable CAD model.

Bearing and component measurements

Measurement	Source symbol	Recorded value
Bore (d)	d	50 mm
O.D. (D)	D	110 mm / 4.331 in
Width (B)	B	27 mm / 1.063 in

Mounting limits and abutments

Measurement	Source symbol	Recorded value
Max Shaft Fillet Radius	Not supplied separately	2.0 mm / 0.079 in

Open the complete TIMKEN 6310-ZZ-C3 record →

TIMKEN 6310-C3 — 4 dimension fields

Deep groove ball bearing. Source: Timken official dimensional catalogue; recorded snapshot 2026-10-01.

Keep the full marking shown for this record. Equal nominal dimensions do not establish matching closure, clearance, precision, material or operating limits.

This factual extract is a dimensional reference, not an OEM fitment statement, a replacement approval or a downloadable CAD model.

Bearing and component measurements

Measurement	Source symbol	Recorded value
Bore (d)	d	50 mm
O.D. (D)	D	110 mm / 4.331 in
Width (B)	B	27 mm / 1.063 in

Mounting limits and abutments

Measurement	Source symbol	Recorded value
Max Shaft Fillet Radius	Not supplied separately	2.0 mm / 0.079 in

Open the complete TIMKEN 6310-C3 record →

TIMKEN 6310-2RS — 4 dimension fields

Deep groove ball bearing. Source: Timken official dimensional catalogue; recorded snapshot 2026-10-01.

Keep the full marking shown for this record. Equal nominal dimensions do not establish matching closure, clearance, precision, material or operating limits.

This factual extract is a dimensional reference, not an OEM fitment statement, a replacement approval or a downloadable CAD model.

Bearing and component measurements

Measurement	Source symbol	Recorded value
Bore (d)	d	50 mm
O.D. (D)	D	110 mm / 4.331 in
Width (B)	B	27 mm / 1.063 in

Mounting limits and abutments

Measurement	Source symbol	Recorded value
Max Shaft Fillet Radius	Not supplied separately	2.0 mm / 0.079 in

Open the complete TIMKEN 6310-2RS record →

TIMKEN 6310 — 4 dimension fields

Deep groove ball bearing. Source: Timken official dimensional catalogue; recorded snapshot 2026-10-01.

Keep the full marking shown for this record. Equal nominal dimensions do not establish matching closure, clearance, precision, material or operating limits.

This factual extract is a dimensional reference, not an OEM fitment statement, a replacement approval or a downloadable CAD model.

Bearing and component measurements

Measurement	Source symbol	Recorded value
Bore (d)	d	50 mm
O.D. (D)	D	110 mm / 4.331 in
Width (B)	B	27 mm / 1.063 in

Mounting limits and abutments

Measurement	Source symbol	Recorded value
Max Shaft Fillet Radius	Not supplied separately	2.0 mm / 0.079 in

Open the complete TIMKEN 6310 record →

TIMKEN 6310-NR — 4 dimension fields

Deep groove ball bearing. Source: Timken official dimensional catalogue; recorded snapshot 2026-10-01.

Keep the full marking shown for this record. Equal nominal dimensions do not establish matching closure, clearance, precision, material or operating limits.

This factual extract is a dimensional reference, not an OEM fitment statement, a replacement approval or a downloadable CAD model.

Bearing and component measurements

Measurement	Source symbol	Recorded value
Bore (d)	d	50 mm
O.D. (D)	D	110 mm / 4.331 in
Width (B)	B	27 mm / 1.063 in

Mounting limits and abutments

Measurement	Source symbol	Recorded value
Max Shaft Fillet Radius	Not supplied separately	2.0 mm / 0.079 in

Open the complete TIMKEN 6310-NR record →

Check shaft and hole fit →Search measured dimensions →

Exact designation reference

Catalogue parameters for 6310

Choose the complete brand and marking before reading a value. These source-labelled records add dimensions, construction and engineering properties where they were recorded; a shared model number does not establish interchangeability.

Units, ranges and minimum/maximum qualifiers are retained. The data is a dated catalogue reference, not a certified drawing, a complete current specification or an operating approval.

SKF 6310 FAG 6310 KOYO 6310

SKF 6310 — 45 recorded parameters

Deep groove ball bearing

Reference: SKF product catalogue; source snapshot 2026-09-02.

Read the complete suffix and recorded construction. Similar dimensions do not prove identical seals, clearance, precision or material.

Values shown are retained from the recorded source. Zero boundary dimensions and zero load ratings from incomplete legacy feeds are withheld rather than presented as usable specifications.

Dimensions

Parameter	Source symbol	Recorded value
Bore diameter	Not separately recorded	50.0 mm
Outside diameter	Not separately recorded	110.0 mm
Width	Not separately recorded	27.0 mm

Performance

Parameter	Source symbol	Recorded value
Basic dynamic load rating	Not separately recorded	65.0 kN
Basic static load rating	Not separately recorded	38.0 kN
Reference speed	Not separately recorded	13000.0 r/min
Limiting speed	Not separately recorded	8500.0 r/min
SKF performance class	Not separately recorded	SKF Explorer

Properties

Parameter	Source symbol	Recorded value
Filling slots	Not separately recorded	Without
Number of rows	Not separately recorded	1
Locating feature, bearing outer ring	Not separately recorded	Without
Bore type	Not separately recorded	Cylindrical
Cage	Not separately recorded	Sheet metal
Matched arrangement	Not separately recorded	No
Radial internal clearance	Not separately recorded	CN
Material, bearing	Not separately recorded	Bearing steel
Coating	Not separately recorded	Without
Sealing	Not separately recorded	Without
Relubrication feature	Not separately recorded	Without
Indicative carbon footprint for new product	Not separately recorded	3.9 kg CO 2 e

Logistics

Parameter	Source symbol	Recorded value
Product net weight	Not separately recorded	1.05 kg

Engineering — Dimensions

Parameter	Source symbol	Recorded value
Bore diameter	d	50 mm
Deviation limits of mid-range bore diameter	t Δdmp	-0.01 to 0 mm
Outside diameter	D	110 mm
Deviation limits of mid-range outside diameter	t ΔDmp	-0.013 to 0 mm
Width	B	27 mm
Deviation limits of ring width	t ΔBs	-0.06 to 0 mm
Shoulder diameter	d 1	≈ 68.76 mm
Recess diameter	D 2	≈ 95.2 mm
Chamfer dimension	r 1,2	min. 2 mm
ISO tolerance class for dimensions	Not separately recorded	P6 and tighter width tolerance

Engineering — Abutment dimensions

Parameter	Source symbol	Recorded value
Diameter of shaft abutment	d a	min. 61 mm
Diameter of housing abutment	D a	max. 99 mm
Radius of shaft or housing fillet	r a	max. 2 mm

Engineering — Calculation data

Parameter	Source symbol	Recorded value
SKF performance class	Not separately recorded	SKF Explorer
Basic dynamic load rating	C	65 kN
Basic static load rating	C 0	38 kN
Fatigue load limit	P u	1.6 kN
Reference speed	Not separately recorded	13000 r/min
Limiting speed	Not separately recorded	8500 r/min
Minimum load factor	k r	0.03
Calculation factor	f 0	13

Engineering — Tolerances of run-out

Parameter	Source symbol	Recorded value
Range of section height at inner ring of assembled bearing	t Kia	10 µm
Range of section height at outer ring of assembled bearing	t Kea	18 µm
ISO tolerance class for geometrical tolerances	Not separately recorded	P6

Open SKF 6310 product record →

FAG 6310 — 48 recorded parameters

Deep groove ball bearing

Reference: Schaeffler medias — FAG; source snapshot 2026-09-02.

Read the complete suffix and recorded construction. Similar dimensions do not prove identical seals, clearance, precision or material.

Values shown are retained from the recorded source. Zero boundary dimensions and zero load ratings from incomplete legacy feeds are withheld rather than presented as usable specifications.

Main Dimensions & Performance Data

Parameter	Source symbol	Recorded value
Bore diameter	d	50 mm
Bore diameter	d	1.969 in
Outside diameter	D	110 mm
Outside diameter	D	4.331 in
Width	B	27 mm
Width	B	1.063 in
Basic dynamic load rating, radial	Cr	68,000 N
Basic dynamic load rating, radial	Cr	15,287.77 lbf
Basic static load rating, radial	C0r	38,500 N
Basic static load rating, radial	C0r	8,655.576 lbf
Fatigue load limit, radial	Cur	2,650 N
Fatigue load limit, radial	Cur	595.773 lbf
Limiting speed	nG	9,500 1/min
Reference speed	nϑr	7,700 1/min
Mass	≈m	1.049 kg
Mass	≈m	2.313 lbs

Mounting dimensions

Parameter	Source symbol	Recorded value
Minimum diameter shaft shoulder	da min	61 mm
Minimum diameter shaft shoulder	da min	2.402 in
Maximum diameter of housing shoulder	Da max	99 mm
Maximum diameter of housing shoulder	Da max	3.898 in
Maximum fillet radius	ra max	2 mm
Maximum fillet radius	ra max	0.079 in

Dimensions

Parameter	Source symbol	Recorded value
Minimum chamfer dimension	rmin	2 mm
Minimum chamfer dimension	rmin	0.079 in
Shoulder diameter outer ring	D1	91.83 mm
Shoulder diameter outer ring	D1	3.615 in
Caliber diameter outer ring	D2	95.1 mm
Caliber diameter outer ring	D2	3.744 in
Shoulder diameter inner ring	d1	68 mm
Shoulder diameter inner ring	d1	2.677 in

Temperature range

Parameter	Source symbol	Recorded value
Operating temperature min.	Tmin	-30 °C
Operating temperature min.	Tmin	-22 °F
Operating temperature max.	Tmax	150 °C
Operating temperature max.	Tmax	302 °F

Calculation factors

Parameter	Source symbol	Recorded value
Calculation factor	f0	13.3

Product characteristics

Parameter	Source symbol	Recorded value
Type of Seal	Without	Not sealed
Cage	JN	Steel sheet metal
Tolerance class	PN	Normal (ISO 492:2023)
Dimensional / heat stabilization	S0	Rings dimensional stabilized up to 150°
Lubricant	Without	Bearing not greased
Radial internal clearance	CN (Group N)	Normal internal clearance
Bore type	Z	Cylindrical

Capabilities & suitability

Parameter	Source symbol	Recorded value
Radial load capacity	Not separately recorded	Yes
Axial load capacity in one direction	Not separately recorded	Yes
Axial load capacity in both directions	Not separately recorded	Yes
Suitable for grease lubrication	Not separately recorded	Yes
Suitable for oil lubrication	Not separately recorded	Yes
Unsealed design	Not separately recorded	Yes

Open FAG 6310 product record →

KOYO 6310 — 14 recorded parameters

Deep groove ball bearing

Reference: JTEKT / Koyo catalogue; source snapshot 2026-09-02.

Read the complete suffix and recorded construction. Similar dimensions do not prove identical seals, clearance, precision or material.

Values shown are retained from the recorded source. Zero boundary dimensions and zero load ratings from incomplete legacy feeds are withheld rather than presented as usable specifications.

Technical Data

Parameter	Source symbol	Recorded value
d	Not separately recorded	50 mm
D	Not separately recorded	110 mm
B	Not separately recorded	27 mm
R(Min.)	Not separately recorded	2 mm
Basic Load Ratings : Cr	Not separately recorded	77.5 kN
Basic Load Ratings : C0R	Not separately recorded	38.3 kN
Fatigue Load Limit : Cu	Not separately recorded	2.90 kN
Factor : F0	Not separately recorded	13.2
Limiting Speeds(Grease Lub.)	Not separately recorded	6100 min-1
Limiting Speeds(Oil Lub.)	Not separately recorded	7300 min-1
Da(Min.)	Not separately recorded	59 mm
Da(Max.)	Not separately recorded	101 mm
Ra(Max.)	Not separately recorded	2 mm
Mass(Refer.)	Not separately recorded	1.07 kg

Open KOYO 6310 product record →

Clearance tables →Precision classes →Load calculations →Interchange checks →

Brand / full designation	Named dimensions (mm / in)	Dynamic C (kN)	Static C0 (kN)	Reference speed (rpm)	Limiting speed (rpm)	Mass (kg / g)
SKF6310Deep groove ball bearing	Bore diameter (d) 50 mm 1.968504 in Outside diameter (D) 110 mm 4.330709 in Width (B) 27 mm 1.062992 in	65 kN	38 kN	13000 rpm	8500 rpm	1.05 kg1050 g
FAG6310Deep groove ball bearing	Bore diameter (d) 50 mm 1.968504 in Outside diameter (D) 110 mm 4.330709 in Width (B) 27 mm 1.062992 in	68 kN	38.5 kN	7700 rpm	9500 rpm	1.049 kg1049 g
TIMKEN6310Deep groove ball bearing	Recorded bore (d) 50 mm 1.968504 in Recorded outside dimension (D) 110 mm 4.330709 in Catalogue width (symbol unverified) 27 mm 1.062992 in	57.5 kN	35.3 kN	—	—	1.06 kg1060 g
NSK6310Deep groove ball bearing	Bore diameter (d) 50 mm 1.968504 in Outside diameter (D) 110 mm 4.330709 in Bearing width (B) 27 mm 1.062992 in	68 kN	38.5 kN	—	—	1.06 kg1060 g
KOYO6310Deep groove ball bearing	Bore diameter (d) 50 mm 1.968504 in Outside diameter (D) 110 mm 4.330709 in Width (B) 27 mm 1.062992 in	77.5 kN	38.3 kN	—	6100 rpmLimiting Speeds(Grease Lub.): 6100 min-1Limiting Speeds(Oil Lub.): 7300 min-1	1.07 kg1070 g
NACHI6310Deep groove ball bearing	Bore diameter (d) 50 mm 1.968504 in Outside diameter (D) 110 mm 4.330709 in Bearing width (B) 27 mm 1.062992 in	78 kN	38 kN	—	—	1.07 kg1070 g
NTN6310Deep groove ball bearing	Internal diameter (d) 50 mm 1.968504 in External diameter (D) 110 mm 4.330709 in Bearing/Inner ring width (B) 27 mm 1.062992 in	68.5 kN	38.5 kN	—	—	1.07 kg1070 g
SKF6310-2RS1Deep groove ball bearing with seals or shields	Bore diameter (d) 50 mm 1.968504 in Outside diameter (D) 110 mm 4.330709 in Width (B) 27 mm 1.062992 in	65 kN	38 kN	—	4300 rpm	1.09 kg1090 g
SKF6310-2RS1/C3Deep groove ball bearing with seals or shields	Recorded bore (d) 50 mm 1.968504 in Recorded outside dimension (D) 110 mm 4.330709 in Catalogue width (symbol unverified) 27 mm 1.062992 in	65 kN	38 kN	—	4300 rpm	1.08 kg1080 g
SKF6310-2RS1/C3GEMDeep groove ball bearing with seals or shields	Recorded bore (d) 50 mm 1.968504 in Recorded outside dimension (D) 110 mm 4.330709 in Catalogue width (symbol unverified) 27 mm 1.062992 in	65 kN	38 kN	—	4300 rpm	1.08 kg1080 g
SKF6310-2RS1/C3GJNDeep groove ball bearing with seals or shields	Recorded bore (d) 50 mm 1.968504 in Recorded outside dimension (D) 110 mm 4.330709 in Catalogue width (symbol unverified) 27 mm 1.062992 in	65 kN	38 kN	—	4300 rpm	1.09 kg1090 g
SKF6310-2RS1/C3LHT23Deep groove ball bearing with seals or shields	Recorded bore (d) 50 mm 1.968504 in Recorded outside dimension (D) 110 mm 4.330709 in Catalogue width (symbol unverified) 27 mm 1.062992 in	65 kN	38 kN	—	4300 rpm	1.09 kg1090 g
SKF6310-2RS1/C3WTDeep groove ball bearing with seals or shields	Recorded bore (d) 50 mm 1.968504 in Recorded outside dimension (D) 110 mm 4.330709 in Catalogue width (symbol unverified) 27 mm 1.062992 in	65 kN	38 kN	13000 rpm	4300 rpm	1.09 kg1090 g
SKF6310-2RS1/C4Deep groove ball bearing with seals or shields	Recorded bore (d) 50 mm 1.968504 in Recorded outside dimension (D) 110 mm 4.330709 in Catalogue width (symbol unverified) 27 mm 1.062992 in	65 kN	38 kN	—	4300 rpm	1.1 kg1100 g
SKF6310-2RS1/GJNDeep groove ball bearing with seals or shields	Recorded bore (d) 50 mm 1.968504 in Recorded outside dimension (D) 110 mm 4.330709 in Catalogue width (symbol unverified) 27 mm 1.062992 in	65 kN	38 kN	—	4300 rpm	1.08 kg1080 g
SKF6310-2RS1/HC5C3WTHybrid ceramic deep groove ball bearing with seals on both sides	Bore diameter (d) 50 mm 1.968504 in Outside diameter (D) 110 mm 4.330709 in Width (B) 27 mm 1.062992 in	61.8 kN	38 kN	—	4300 rpm	0.947 kg947 g
SKF6310-2RS1/MTVM121Deep groove ball bearing with seals or shields	Recorded bore (d) 50 mm 1.968504 in Recorded outside dimension (D) 110 mm 4.330709 in Catalogue width (symbol unverified) 27 mm 1.062992 in	65 kN	38 kN	—	4300 rpm	1.08 kg1080 g
SKF6310-2RS1NRDeep groove ball bearing with snap ring and integral sealing	Recorded bore (d) 50 mm 1.968504 in Recorded outside dimension (D) 110 mm 4.330709 in Catalogue width (symbol unverified) 27 mm 1.062992 in	61.8 kN	38 kN	—	4300 rpm	1.11 kg1110 g
SKF6310 2RSJEMDeep groove ball bearing	Recorded bore (d) 50 mm 1.968504 in Recorded outside dimension (D) 110 mm 4.330709 in Catalogue width (symbol unverified) 27 mm 1.062992 in	65 kN	38 kN	—	4300 rpm	1.08 kg1080 g
SKF6310 2RSNRJEMDeep groove ball bearing	Recorded bore (d) 50 mm 1.968504 in Recorded outside dimension (D) 110 mm 4.330709 in Catalogue width (symbol unverified) 27 mm 1.062992 in	65 kN	38 kN	—	4300 rpm	1.11 kg1110 g
SKF6310-2ZDeep groove ball bearing with seals or shields	Bore diameter (d) 50 mm 1.968504 in Outside diameter (D) 110 mm 4.330709 in Width (B) 27 mm 1.062992 in	65 kN	38 kN	13000 rpm	6700 rpm	1.09 kg1090 g
SKF6310-2Z/C3Deep groove ball bearing with seals or shields	Recorded bore (d) 50 mm 1.968504 in Recorded outside dimension (D) 110 mm 4.330709 in Catalogue width (symbol unverified) 27 mm 1.062992 in	65 kN	38 kN	13000 rpm	6700 rpm	1.09 kg1090 g
SKF6310-2Z/C3GJNDeep groove ball bearing with seals or shields	Recorded bore (d) 50 mm 1.968504 in Recorded outside dimension (D) 110 mm 4.330709 in Catalogue width (symbol unverified) 27 mm 1.062992 in	65 kN	38 kN	13000 rpm	6700 rpm	1.1 kg1100 g
SKF6310-2Z/C3WTDeep groove ball bearing with seals or shields	Recorded bore (d) 50 mm 1.968504 in Recorded outside dimension (D) 110 mm 4.330709 in Catalogue width (symbol unverified) 27 mm 1.062992 in	65 kN	38 kN	13000 rpm	6700 rpm	1.09 kg1090 g
SKF6310-2Z/C4Deep groove ball bearing with seals or shields	Recorded bore (d) 50 mm 1.968504 in Recorded outside dimension (D) 110 mm 4.330709 in Catalogue width (symbol unverified) 27 mm 1.062992 in	65 kN	38 kN	13000 rpm	6700 rpm	1.09 kg1090 g
SKF6310-2Z/GJNDeep groove ball bearing with seals or shields	Recorded bore (d) 50 mm 1.968504 in Recorded outside dimension (D) 110 mm 4.330709 in Catalogue width (symbol unverified) 27 mm 1.062992 in	65 kN	38 kN	13000 rpm	6700 rpm	1.09 kg1090 g
SKF6310-2Z/HC5C3WTHybrid ceramic deep groove ball bearing with seals on both sides	Recorded bore (d) 50 mm 1.968504 in Recorded outside dimension (D) 110 mm 4.330709 in Catalogue width (symbol unverified) 27 mm 1.062992 in	61.8 kN	38 kN	16000 rpm	8500 rpm	0.976 kg976 g
SKF6310 2ZJEMDeep groove ball bearing	Recorded bore (d) 50 mm 1.968504 in Recorded outside dimension (D) 110 mm 4.330709 in Catalogue width (symbol unverified) 27 mm 1.062992 in	65 kN	38 kN	13000 rpm	6700 rpm	1.09 kg1090 g
SKF6310-2ZNRDeep groove ball bearing with snap ring and integral sealing	Bore diameter (d) 50 mm 1.968504 in Outside diameter (D) 110 mm 4.330709 in Width (B) 27 mm 1.062992 in	65 kN	38 kN	13000 rpm	6700 rpm	1.11 kg1110 g
SKF6310 2ZNRJEMDeep groove ball bearing	Recorded bore (d) 50 mm 1.968504 in Recorded outside dimension (D) 110 mm 4.330709 in Catalogue width (symbol unverified) 27 mm 1.062992 in	65 kN	38 kN	13000 rpm	6700 rpm	1.12 kg1120 g
SKF6310-2ZTN9/HC5C3WTHybrid ceramic deep groove ball bearing with shields	Bore diameter (d) 50 mm 1.968504 in Outside diameter (D) 110 mm 4.330709 in Width (B) 27 mm 1.062992 in	61.8 kN	38 kN	16000 rpm	8500 rpm	0.935 kg935 g
SKF6310-2Z/VA201Deep groove ball bearing for high temperature applications with shields on both sides	Bore diameter (d) 50 mm 1.968504 in Outside diameter (D) 110 mm 4.330709 in Width (B) 27 mm 1.062992 in	—	38 kN	—	60 rpm	1.09 kg1090 g
SKF6310-2Z/VA208Deep groove ball bearing for high temperature applications with shields on both sides	Bore diameter (d) 50 mm 1.968504 in Outside diameter (D) 110 mm 4.330709 in Width (B) 27 mm 1.062992 in	—	38 kN	—	50 rpm	1.06 kg1060 g
SKF6310-2Z/VA228Deep groove ball bearing for high temperature applications with shields on both sides	Bore diameter (d) 50 mm 1.968504 in Outside diameter (D) 110 mm 4.330709 in Width (B) 27 mm 1.062992 in	—	38 kN	—	110 rpm	1.09 kg1090 g
SKF6310/AXDDeep groove ball bearing	Bore diameter (d) 50 mm 1.968504 in Outside diameter (D) 110 mm 4.330709 in Width (B) 27 mm 1.062992 in	78 kN	38 kN	13000 rpm	8500 rpm	1.08 kg1080 g
SKF6310/C3Deep groove ball bearing	Recorded bore (d) 50 mm 1.968504 in Recorded outside dimension (D) 110 mm 4.330709 in Catalogue width (symbol unverified) 27 mm 1.062992 in	65 kN	38 kN	13000 rpm	8500 rpm	1.05 kg1050 g
SKF6310/C3S1Deep groove ball bearing	Recorded bore (d) 50 mm 1.968504 in Recorded outside dimension (D) 110 mm 4.330709 in Catalogue width (symbol unverified) 27 mm 1.062992 in	65 kN	36 kN	13000 rpm	8500 rpm	1.1 kg1100 g
SKF6310/C4Deep groove ball bearing	Recorded bore (d) 50 mm 1.968504 in Recorded outside dimension (D) 110 mm 4.330709 in Catalogue width (symbol unverified) 27 mm 1.062992 in	65 kN	38 kN	13000 rpm	8500 rpm	1.05 kg1050 g
SKF6310/HC5C3Hybrid ceramic deep groove ball bearing	Bore diameter (d) 50 mm 1.968504 in Outside diameter (D) 110 mm 4.330709 in Width (B) 27 mm 1.062992 in	61.8 kN	38 kN	16000 rpm	10000 rpm	0.913 kg913 g
SKF6310 JEMDeep groove ball bearing	Recorded bore (d) 50 mm 1.968504 in Recorded outside dimension (D) 110 mm 4.330709 in Catalogue width (symbol unverified) 27 mm 1.062992 in	65 kN	38 kN	13000 rpm	8500 rpm	1.05 kg1050 g
SKF6310 M/C3Deep groove ball bearing	Recorded bore (d) 50 mm 1.968504 in Recorded outside dimension (D) 110 mm 4.330709 in Catalogue width (symbol unverified) 27 mm 1.062992 in	65 kN	38 kN	13000 rpm	12000 rpm	1.26 kg1260 g
SKF6310 M/C3VL0241INSOCOAT® deep groove ball bearing	Recorded bore (d) 50 mm 1.968504 in Recorded outside dimension (D) 110 mm 4.330709 in Catalogue width (symbol unverified) 27 mm 1.062992 in	65 kN	38 kN	13000 rpm	12000 rpm	1.2 kg1200 g
SKF6310 M/C4VL0241INSOCOAT® deep groove ball bearing	Bore diameter (d) 50 mm 1.968504 in Outside diameter (D) 110 mm 4.330709 in Width (B) 27 mm 1.062992 in	65 kN	38 kN	13000 rpm	12000 rpm	1.2 kg1200 g
SKF6310 NDeep groove ball bearing with snap ring groove	Bore diameter (d) 50 mm 1.968504 in Outside diameter (D) 110 mm 4.330709 in Width (B) 27 mm 1.062992 in	65 kN	38 kN	13000 rpm	8500 rpm	1.01 kg1010 g
SKF6310 NRDeep groove ball bearing with snap ring	Bore diameter (d) 50 mm 1.968504 in Outside diameter (D) 110 mm 4.330709 in Width (B) 27 mm 1.062992 in	65 kN	38 kN	13000 rpm	8500 rpm	1.07 kg1070 g
SKF6310 NR/C3Deep groove ball bearing with snap ring	Recorded bore (d) 50 mm 1.968504 in Recorded outside dimension (D) 110 mm 4.330709 in Catalogue width (symbol unverified) 27 mm 1.062992 in	65 kN	38 kN	13000 rpm	8500 rpm	1.07 kg1070 g
SKF6310 NRJEMDeep groove ball bearing	Recorded bore (d) 50 mm 1.968504 in Recorded outside dimension (D) 110 mm 4.330709 in Catalogue width (symbol unverified) 27 mm 1.062992 in	65 kN	38 kN	13000 rpm	8500 rpm	1.07 kg1070 g
SKF6310-RS1Deep groove ball bearing with seals or shields	Bore diameter (d) 50 mm 1.968504 in Outside diameter (D) 110 mm 4.330709 in Width (B) 27 mm 1.062992 in	65 kN	38 kN	—	4300 rpm	1.06 kg1060 g
SKF6310-RS1Z/C3S0GJN6Deep groove ball bearing with seals or shields	Recorded bore (d) 50 mm 1.968504 in Recorded outside dimension (D) 110 mm 4.330709 in Catalogue width (symbol unverified) 27 mm 1.062992 in	65 kN	38 kN	13000 rpm	8500 rpm	1.08 kg1080 g
SKF6310 RSJEMDeep groove ball bearing	Recorded bore (d) 50 mm 1.968504 in Recorded outside dimension (D) 110 mm 4.330709 in Catalogue width (symbol unverified) 27 mm 1.062992 in	65 kN	38 kN	—	4300 rpm	1.06 kg1060 g
SKF6310/VA201Deep groove ball bearing for high temperature applications	Bore diameter (d) 50 mm 1.968504 in Outside diameter (D) 110 mm 4.330709 in Width (B) 27 mm 1.062992 in	—	38 kN	—	60 rpm	1.06 kg1060 g
SKF6310-ZDeep groove ball bearing with seals or shields	Bore diameter (d) 50 mm 1.968504 in Outside diameter (D) 110 mm 4.330709 in Width (B) 27 mm 1.062992 in	65 kN	38 kN	13000 rpm	8500 rpm	1.06 kg1060 g
SKF6310-Z/C3Deep groove ball bearing with seals or shields	Recorded bore (d) 50 mm 1.968504 in Recorded outside dimension (D) 110 mm 4.330709 in Catalogue width (symbol unverified) 27 mm 1.062992 in	65 kN	38 kN	13000 rpm	8500 rpm	1.06 kg1060 g
SKF6310-Z/C3HS1Deep groove ball bearing with seals or shields	Recorded bore (d) 50 mm 1.968504 in Recorded outside dimension (D) 110 mm 4.330709 in Catalogue width (symbol unverified) 27 mm 1.062992 in	65 kN	36 kN	13000 rpm	8500 rpm	1.06 kg1060 g
SKF6310-Z/C3S0Deep groove ball bearing with seals or shields	Recorded bore (d) 50 mm 1.968504 in Recorded outside dimension (D) 110 mm 4.330709 in Catalogue width (symbol unverified) 27 mm 1.062992 in	65 kN	38 kN	13000 rpm	8500 rpm	1.05 kg1050 g
SKF6310 ZJEMDeep groove ball bearing	Recorded bore (d) 50 mm 1.968504 in Recorded outside dimension (D) 110 mm 4.330709 in Catalogue width (symbol unverified) 27 mm 1.062992 in	65 kN	38 kN	13000 rpm	8500 rpm	1.07 kg1070 g
SKF6310-ZNBR/C3Deep groove ball bearing with snap ring and integral sealing	Recorded bore (d) 50 mm 1.968504 in Recorded outside dimension (D) 110 mm 4.330709 in Catalogue width (symbol unverified) 27 mm 1.062992 in	65 kN	38 kN	13000 rpm	8500 rpm	1.09 kg1090 g
SKF6310 ZNBRJEMDeep groove ball bearing	Recorded bore (d) 50 mm 1.968504 in Recorded outside dimension (D) 110 mm 4.330709 in Catalogue width (symbol unverified) 27 mm 1.062992 in	65 kN	38 kN	13000 rpm	8500 rpm	1.1 kg1100 g
SKF6310-ZNRDeep groove ball bearing with snap ring and integral sealing	Bore diameter (d) 50 mm 1.968504 in Outside diameter (D) 110 mm 4.330709 in Width (B) 27 mm 1.062992 in	65 kN	38 kN	13000 rpm	8500 rpm	1.08 kg1080 g
FAG6310-2RSRDeep groove ball bearing	Bore diameter (d) 50 mm 1.968504 in Outside diameter (D) 110 mm 4.330709 in Width (B) 27 mm 1.062992 in	68 kN	38.5 kN	—	3950 rpm	1.083 kg1083 g
FAG6310-2RSR-C3Deep groove ball bearing	Bore diameter (d) 50 mm 1.968504 in Outside diameter (D) 110 mm 4.330709 in Width (B) 27 mm 1.062992 in	68 kN	38.5 kN	—	3950 rpm	1.083 kg1083 g
FAG6310-2RSR-C4Deep groove ball bearing	Bore diameter (d) 50 mm 1.968504 in Outside diameter (D) 110 mm 4.330709 in Width (B) 27 mm 1.062992 in	68 kN	38.5 kN	—	3950 rpm	1.083 kg1083 g
FAG6310-2RSR-L038Deep groove ball bearing	Bore diameter (d) 50 mm 1.968504 in Outside diameter (D) 110 mm 4.330709 in Width (B) 27 mm 1.062992 in	68 kN	38.5 kN	—	3950 rpm	1.083 kg1083 g
FAG6310-2RSR-L038-C3Deep groove ball bearing	Bore diameter (d) 50 mm 1.968504 in Outside diameter (D) 110 mm 4.330709 in Width (B) 27 mm 1.062992 in	68 kN	38.5 kN	—	3950 rpm	1.083 kg1083 g
FAG6310-2RSR-L038-C4Deep groove ball bearing	Bore diameter (d) 50 mm 1.968504 in Outside diameter (D) 110 mm 4.330709 in Width (B) 27 mm 1.062992 in	68 kN	38.5 kN	—	3950 rpm	1.083 kg1083 g
FAG6310-2RSR-L140Deep groove ball bearing	Bore diameter (d) 50 mm 1.968504 in Outside diameter (D) 110 mm 4.330709 in Width (B) 27 mm 1.062992 in	68 kN	38.5 kN	—	3950 rpm	1.083 kg1083 g
FAG6310-2RSR-L140-C3Deep groove ball bearing	Bore diameter (d) 50 mm 1.968504 in Outside diameter (D) 110 mm 4.330709 in Width (B) 27 mm 1.062992 in	68 kN	38.5 kN	—	3950 rpm	1.083 kg1083 g
FAG6310-2ZDeep groove ball bearing	Bore diameter (d) 50 mm 1.968504 in Outside diameter (D) 110 mm 4.330709 in Width (B) 27 mm 1.062992 in	68 kN	38.5 kN	7700 rpm	8000 rpm	1.083 kg1083 g
FAG6310-2Z-C3Deep groove ball bearing	Bore diameter (d) 50 mm 1.968504 in Outside diameter (D) 110 mm 4.330709 in Width (B) 27 mm 1.062992 in	68 kN	38.5 kN	7700 rpm	8000 rpm	1.083 kg1083 g
FAG6310-2Z-C4Deep groove ball bearing	Bore diameter (d) 50 mm 1.968504 in Outside diameter (D) 110 mm 4.330709 in Width (B) 27 mm 1.062992 in	68 kN	38.5 kN	7700 rpm	8000 rpm	1.083 kg1083 g
FAG6310-2Z-L038Deep groove ball bearing	Bore diameter (d) 50 mm 1.968504 in Outside diameter (D) 110 mm 4.330709 in Width (B) 27 mm 1.062992 in	68 kN	38.5 kN	7700 rpm	8000 rpm	1.12 kg1120 g
FAG6310-2Z-L038-C3Deep groove ball bearing	Bore diameter (d) 50 mm 1.968504 in Outside diameter (D) 110 mm 4.330709 in Width (B) 27 mm 1.062992 in	68 kN	38.5 kN	7700 rpm	8000 rpm	1.12 kg1120 g
FAG6310-2Z-L069-C3Deep groove ball bearing	Bore diameter (d) 50 mm 1.968504 in Outside diameter (D) 110 mm 4.330709 in Width (B) 27 mm 1.062992 in	68 kN	38.5 kN	7700 rpm	8000 rpm	1.12 kg1120 g
FAG6310-2Z-L140Deep groove ball bearing	Bore diameter (d) 50 mm 1.968504 in Outside diameter (D) 110 mm 4.330709 in Width (B) 27 mm 1.062992 in	68 kN	38.5 kN	7700 rpm	8000 rpm	1.083 kg1083 g
FAG6310-2Z-L140-C3Deep groove ball bearing	Bore diameter (d) 50 mm 1.968504 in Outside diameter (D) 110 mm 4.330709 in Width (B) 27 mm 1.062992 in	68 kN	38.5 kN	7700 rpm	8000 rpm	1.083 kg1083 g
FAG6310-2Z-L207-C3Deep groove ball bearing	Bore diameter (d) 50 mm 1.968504 in Outside diameter (D) 110 mm 4.330709 in Width (B) 27 mm 1.062992 in	68 kN	38.5 kN	7700 rpm	8000 rpm	1.083 kg1083 g
FAG6310-CDeep groove ball bearing	Bore diameter (d) 50 mm 1.968504 in Outside diameter (D) 110 mm 4.330709 in Width (B) 27 mm 1.062992 in	68 kN	38 kN	8400 rpm	9500 rpm	1.043 kg1043 g
FAG6310-C-2HRSDeep groove ball bearing	Bore diameter (d) 50 mm 1.968504 in Outside diameter (D) 110 mm 4.330709 in Width (B) 27 mm 1.062992 in	68 kN	38 kN	—	5800 rpm	1.084 kg1084 g
FAG6310-C-2HRS-C3Deep groove ball bearing	Bore diameter (d) 50 mm 1.968504 in Outside diameter (D) 110 mm 4.330709 in Width (B) 27 mm 1.062992 in	68 kN	38 kN	—	5800 rpm	1.084 kg1084 g
FAG6310-C-2HRS-C4Deep groove ball bearing	Bore diameter (d) 50 mm 1.968504 in Outside diameter (D) 110 mm 4.330709 in Width (B) 27 mm 1.062992 in	68 kN	38 kN	—	5800 rpm	1.084 kg1084 g
FAG6310-C-2HRS-L138-C3Deep groove ball bearing	Bore diameter (d) 50 mm 1.968504 in Outside diameter (D) 110 mm 4.330709 in Width (B) 27 mm 1.062992 in	68 kN	38 kN	—	5800 rpm	1.085 kg1085 g
FAG6310-C-2ZDeep groove ball bearing	Bore diameter (d) 50 mm 1.968504 in Outside diameter (D) 110 mm 4.330709 in Width (B) 27 mm 1.062992 in	68 kN	38 kN	8400 rpm	8000 rpm	1.077 kg1077 g
FAG6310-C-2Z-C3Deep groove ball bearing	Bore diameter (d) 50 mm 1.968504 in Outside diameter (D) 110 mm 4.330709 in Width (B) 27 mm 1.062992 in	68 kN	38 kN	8400 rpm	8000 rpm	1.077 kg1077 g
FAG6310-C-2Z-C4Deep groove ball bearing	Bore diameter (d) 50 mm 1.968504 in Outside diameter (D) 110 mm 4.330709 in Width (B) 27 mm 1.062992 in	68 kN	38 kN	8400 rpm	8000 rpm	1.077 kg1077 g
FAG6310-C-2Z-L138Deep groove ball bearing	Bore diameter (d) 50 mm 1.968504 in Outside diameter (D) 110 mm 4.330709 in Width (B) 27 mm 1.062992 in	68 kN	38 kN	8400 rpm	8000 rpm	1.07 kg1070 g
FAG6310-C-2Z-L138-C3Deep groove ball bearing	Bore diameter (d) 50 mm 1.968504 in Outside diameter (D) 110 mm 4.330709 in Width (B) 27 mm 1.062992 in	68 kN	38 kN	8400 rpm	8000 rpm	1.08 kg1080 g
FAG6310-C-2Z-L207-C3Deep groove ball bearing	Bore diameter (d) 50 mm 1.968504 in Outside diameter (D) 110 mm 4.330709 in Width (B) 27 mm 1.062992 in	68 kN	38 kN	8400 rpm	8000 rpm	1.077 kg1077 g
FAG6310-C-2Z-L408-C3Deep groove ball bearing	Bore diameter (d) 50 mm 1.968504 in Outside diameter (D) 110 mm 4.330709 in Width (B) 27 mm 1.062992 in	68 kN	38 kN	8400 rpm	8000 rpm	1.08 kg1080 g
FAG6310-C3Deep groove ball bearing	Bore diameter (d) 50 mm 1.968504 in Outside diameter (D) 110 mm 4.330709 in Width (B) 27 mm 1.062992 in	68 kN	38.5 kN	7700 rpm	9500 rpm	1.049 kg1049 g
FAG6310-C4Deep groove ball bearing	Bore diameter (d) 50 mm 1.968504 in Outside diameter (D) 110 mm 4.330709 in Width (B) 27 mm 1.062992 in	68 kN	38.5 kN	7700 rpm	9500 rpm	1.049 kg1049 g
FAG6310-C-C3Deep groove ball bearing	Bore diameter (d) 50 mm 1.968504 in Outside diameter (D) 110 mm 4.330709 in Width (B) 27 mm 1.062992 in	68 kN	38 kN	8400 rpm	9500 rpm	1.043 kg1043 g
FAG6310-C-C4Deep groove ball bearing	Bore diameter (d) 50 mm 1.968504 in Outside diameter (D) 110 mm 4.330709 in Width (B) 27 mm 1.062992 in	68 kN	38 kN	8400 rpm	9500 rpm	1.043 kg1043 g
FAG6310-C-HRSDeep groove ball bearing	Bore diameter (d) 50 mm 1.968504 in Outside diameter (D) 110 mm 4.330709 in Width (B) 27 mm 1.062992 in	68 kN	38 kN	—	5800 rpm	1.056 kg1056 g
FAG6310-C-HRS-C3Deep groove ball bearing	Bore diameter (d) 50 mm 1.968504 in Outside diameter (D) 110 mm 4.330709 in Width (B) 27 mm 1.062992 in	68 kN	38 kN	—	5800 rpm	1.056 kg1056 g
FAG6310-C-MDeep groove ball bearing	Bore diameter (d) 50 mm 1.968504 in Outside diameter (D) 110 mm 4.330709 in Width (B) 27 mm 1.062992 in	68 kN	38 kN	8400 rpm	12300 rpm	1.261 kg1261 g
FAG6310-C-M-C3Deep groove ball bearing	Bore diameter (d) 50 mm 1.968504 in Outside diameter (D) 110 mm 4.330709 in Width (B) 27 mm 1.062992 in	68 kN	38 kN	8400 rpm	12300 rpm	1.261 kg1261 g
FAG6310-C-M-C4Deep groove ball bearing	Bore diameter (d) 50 mm 1.968504 in Outside diameter (D) 110 mm 4.330709 in Width (B) 27 mm 1.062992 in	68 kN	38 kN	8400 rpm	12300 rpm	1.261 kg1261 g
FAG6310-C-NDeep groove ball bearing	Bore diameter (d) 50 mm 1.968504 in Outside diameter (D) 110 mm 4.330709 in Width (B) 27 mm 1.062992 in	68 kN	38 kN	8400 rpm	9500 rpm	1.07 kg1070 g
FAG6310-C-N-C3Deep groove ball bearing	Bore diameter (d) 50 mm 1.968504 in Outside diameter (D) 110 mm 4.330709 in Width (B) 27 mm 1.062992 in	68 kN	38 kN	8400 rpm	9500 rpm	1.03 kg1030 g
FAG6310-C-TVH-C3Deep groove ball bearing	Bore diameter (d) 50 mm 1.968504 in Outside diameter (D) 110 mm 4.330709 in Width (B) 27 mm 1.062992 in	68 kN	38 kN	8400 rpm	9500 rpm	1.05 kg1050 g
FAG6310-C-ZDeep groove ball bearing	Bore diameter (d) 50 mm 1.968504 in Outside diameter (D) 110 mm 4.330709 in Width (B) 27 mm 1.062992 in	68 kN	38 kN	8400 rpm	9500 rpm	1.052 kg1052 g
FAG6310-C-Z-C3Deep groove ball bearing	Bore diameter (d) 50 mm 1.968504 in Outside diameter (D) 110 mm 4.330709 in Width (B) 27 mm 1.062992 in	68 kN	38 kN	8400 rpm	9500 rpm	1.052 kg1052 g
FAG6310-C-Z-HRS-L100-C3Deep groove ball bearing	Bore diameter (d) 50 mm 1.968504 in Outside diameter (D) 110 mm 4.330709 in Width (B) 27 mm 1.062992 in	68 kN	38 kN	—	5800 rpm	1.076 kg1076 g
FAG6310-H-2RSR-SN-C3>NDeep groove ball bearing	Bore diameter (d) 50 mm 1.968504 in Outside diameter (D) 110 mm 4.330709 in Width (B) 27 mm 1.062992 in	57.54 kN	35.34 kN	—	4000 rpm	1.04 kg1040 g
FAG6310-H-2RSR-SN-L038-C3>NDeep groove ball bearing	Bore diameter (d) 50 mm 1.968504 in Outside diameter (D) 110 mm 4.330709 in Width (B) 27 mm 1.062992 in	57.54 kN	35.34 kN	—	4000 rpm	1.157 kg1157 g
FAG6310-H-2RSR-SN-L138-C3>NDeep groove ball bearing	Bore diameter (d) 50 mm 1.968504 in Outside diameter (D) 110 mm 4.330709 in Width (B) 27 mm 1.062992 in	57.54 kN	35.34 kN	—	4000 rpm	1.157 kg1157 g
FAG6310-H-2RSR-SN>NDeep groove ball bearing	Bore diameter (d) 50 mm 1.968504 in Outside diameter (D) 110 mm 4.330709 in Width (B) 27 mm 1.062992 in	57.54 kN	35.34 kN	—	4000 rpm	1.04 kg1040 g
FAG6310-H-2Z-SN-C3>NDeep groove ball bearing	Bore diameter (d) 50 mm 1.968504 in Outside diameter (D) 110 mm 4.330709 in Width (B) 27 mm 1.062992 in	57.54 kN	35.34 kN	7700 rpm	7400 rpm	1.03 kg1030 g
FAG6310-H-2Z-SN>NDeep groove ball bearing	Bore diameter (d) 50 mm 1.968504 in Outside diameter (D) 110 mm 4.330709 in Width (B) 27 mm 1.062992 in	57.54 kN	35.34 kN	7700 rpm	7400 rpm	1.03 kg1030 g
FAG6310-H305Deep groove ball bearing	Bore diameter (d) 50 mm 1.968504 in Outside diameter (D) 110 mm 4.330709 in Width (B) 27 mm 1.062992 in	68 kN	38.5 kN	7700 rpm	9500 rpm	1.049 kg1049 g
FAG6310-H-SN-C3>NDeep groove ball bearing	Bore diameter (d) 50 mm 1.968504 in Outside diameter (D) 110 mm 4.330709 in Width (B) 27 mm 1.062992 in	57.54 kN	35.34 kN	7700 rpm	8700 rpm	1.04 kg1040 g
FAG6310-H-SN>NDeep groove ball bearing	Bore diameter (d) 50 mm 1.968504 in Outside diameter (D) 110 mm 4.330709 in Width (B) 27 mm 1.062992 in	57.54 kN	35.34 kN	7700 rpm	8700 rpm	1.04 kg1040 g
FAG6310-J20AA-C3Deep groove ball bearing	Bore diameter (d) 50 mm 1.968504 in Outside diameter (D) 110 mm 4.330709 in Width (B) 27 mm 1.062992 in	68 kN	38.5 kN	7700 rpm	9500 rpm	1.09 kg1090 g
FAG6310-M-J20AADeep groove ball bearing	Bore diameter (d) 50 mm 1.968504 in Outside diameter (D) 110 mm 4.330709 in Width (B) 27 mm 1.062992 in	68 kN	38.5 kN	7700 rpm	12300 rpm	1.31 kg1310 g
FAG6310-M-J20AA-C3Deep groove ball bearing	Bore diameter (d) 50 mm 1.968504 in Outside diameter (D) 110 mm 4.330709 in Width (B) 27 mm 1.062992 in	68 kN	38.5 kN	7700 rpm	12300 rpm	1.31 kg1310 g
FAG6310-NDeep groove ball bearing	Bore diameter (d) 50 mm 1.968504 in Outside diameter (D) 110 mm 4.330709 in Width (B) 27 mm 1.062992 in	68 kN	38.5 kN	7700 rpm	9500 rpm	1.069 kg1069 g
FAG6310-NRDeep groove ball bearing	Bore diameter (d) 50 mm 1.968504 in Outside diameter (D) 110 mm 4.330709 in Width (B) 27 mm 1.062992 in	68 kN	38.5 kN	7700 rpm	9500 rpm	1.086 kg1086 g
FAG6310-NR-C3Deep groove ball bearing	Bore diameter (d) 50 mm 1.968504 in Outside diameter (D) 110 mm 4.330709 in Width (B) 27 mm 1.062992 in	68 kN	38.5 kN	7700 rpm	9500 rpm	1.095 kg1095 g
FAG6310-RSRDeep groove ball bearing	Bore diameter (d) 50 mm 1.968504 in Outside diameter (D) 110 mm 4.330709 in Width (B) 27 mm 1.062992 in	68 kN	38.5 kN	—	3950 rpm	1.065 kg1065 g
FAG6310-ZDeep groove ball bearing	Bore diameter (d) 50 mm 1.968504 in Outside diameter (D) 110 mm 4.330709 in Width (B) 27 mm 1.062992 in	68 kN	38.5 kN	7700 rpm	9500 rpm	1.061 kg1061 g
FAG6310-Z-C3Deep groove ball bearing	Bore diameter (d) 50 mm 1.968504 in Outside diameter (D) 110 mm 4.330709 in Width (B) 27 mm 1.062992 in	68 kN	38.5 kN	7700 rpm	9500 rpm	1.061 kg1061 g
FAG6310-Z-NDeep groove ball bearing	Bore diameter (d) 50 mm 1.968504 in Outside diameter (D) 110 mm 4.330709 in Width (B) 27 mm 1.062992 in	68 kN	38.5 kN	7700 rpm	9500 rpm	1.09 kg1090 g
TIMKEN6310-2RSDeep groove ball bearing	Recorded bore (d) 50 mm 1.968504 in Recorded outside dimension (D) 110 mm 4.330709 in Catalogue width (symbol unverified) 27 mm 1.062992 in	57.5 kN	35.3 kN	—	—	1.06 kg1060 g
TIMKEN6310-2RS-C3Deep groove ball bearing	Recorded bore (d) 50 mm 1.968504 in Recorded outside dimension (D) 110 mm 4.330709 in Catalogue width (symbol unverified) 27 mm 1.062992 in	57.5 kN	35.3 kN	—	—	1.06 kg1060 g
TIMKEN6310-2RS-C3-FS953FDeep groove ball bearing	Recorded bore (d) 50 mm 1.968504 in Recorded outside dimension (D) 110 mm 4.330709 in Catalogue width (symbol unverified) 27 mm 1.062992 in	57.5 kN	35.3 kN	—	—	1.06 kg1060 g
TIMKEN6310-2RS-C3/VSL609Deep groove ball bearing	Recorded bore (d) 50 mm 1.968504 in Recorded outside dimension (D) 110 mm 4.330709 in Catalogue width (symbol unverified) 27 mm 1.062992 in	57.5 kN	35.3 kN	—	—	1.06 kg1060 g
TIMKEN6310-2RS-C4Deep groove ball bearing	Recorded bore (d) 50 mm 1.968504 in Recorded outside dimension (D) 110 mm 4.330709 in Catalogue width (symbol unverified) 27 mm 1.062992 in	57.5 kN	35.3 kN	—	—	1.06 kg1060 g
TIMKEN6310-2RS-NRDeep groove ball bearing	Recorded bore (d) 50 mm 1.968504 in Recorded outside dimension (D) 110 mm 4.330709 in Catalogue width (symbol unverified) 27 mm 1.062992 in	57.5 kN	35.3 kN	—	—	1.06 kg1060 g
TIMKEN6310-2RS/VSL609Deep groove ball bearing	Recorded bore (d) 50 mm 1.968504 in Recorded outside dimension (D) 110 mm 4.330709 in Catalogue width (symbol unverified) 27 mm 1.062992 in	57.5 kN	35.3 kN	—	—	1.06 kg1060 g
TIMKEN6310-2RZDeep groove ball bearing	Recorded bore (d) 50 mm 1.968504 in Recorded outside dimension (D) 110 mm 4.330709 in Catalogue width (symbol unverified) 27 mm 1.062992 in	57.5 kN	35.3 kN	—	—	1.05 kg1050 g
TIMKEN6310-2RZ-C3Deep groove ball bearing	Recorded bore (d) 50 mm 1.968504 in Recorded outside dimension (D) 110 mm 4.330709 in Catalogue width (symbol unverified) 27 mm 1.062992 in	57.5 kN	35.3 kN	—	—	1.05 kg1050 g
TIMKEN6310-C3Deep groove ball bearing	Recorded bore (d) 50 mm 1.968504 in Recorded outside dimension (D) 110 mm 4.330709 in Catalogue width (symbol unverified) 27 mm 1.062992 in	57.5 kN	35.3 kN	—	—	1.06 kg1060 g
TIMKEN6310-C4Deep groove ball bearing	Recorded bore (d) 50 mm 1.968504 in Recorded outside dimension (D) 110 mm 4.330709 in Catalogue width (symbol unverified) 27 mm 1.062992 in	57.5 kN	35.3 kN	—	—	1.05 kg1050 g
TIMKEN6310M-C3Deep groove ball bearing	Recorded bore (d) 50 mm 1.968504 in Recorded outside dimension (D) 110 mm 4.330709 in Catalogue width (symbol unverified) 27 mm 1.062992 in	57.5 kN	35.3 kN	—	—	1.26 kg1260 g
TIMKEN6310-NRDeep groove ball bearing	Recorded bore (d) 50 mm 1.968504 in Recorded outside dimension (D) 110 mm 4.330709 in Catalogue width (symbol unverified) 27 mm 1.062992 in	57.5 kN	35.3 kN	—	—	1.06 kg1060 g
TIMKEN6310-NR-C3Deep groove ball bearing	Recorded bore (d) 50 mm 1.968504 in Recorded outside dimension (D) 110 mm 4.330709 in Catalogue width (symbol unverified) 27 mm 1.062992 in	57.5 kN	35.3 kN	—	—	1.06 kg1060 g
TIMKEN6310-RSDeep groove ball bearing	Recorded bore (d) 50 mm 1.968504 in Recorded outside dimension (D) 110 mm 4.330709 in Catalogue width (symbol unverified) 27 mm 1.062992 in	57.5 kN	35.3 kN	—	—	1.06 kg1060 g
TIMKEN6310-RS-C3Deep groove ball bearing	Recorded bore (d) 50 mm 1.968504 in Recorded outside dimension (D) 110 mm 4.330709 in Catalogue width (symbol unverified) 27 mm 1.062992 in	57.5 kN	35.3 kN	—	—	1.05 kg1050 g
TIMKEN6310/VSL609Deep groove ball bearing	Recorded bore (d) 50 mm 1.968504 in Recorded outside dimension (D) 110 mm 4.330709 in Catalogue width (symbol unverified) 27 mm 1.062992 in	57.5 kN	35.3 kN	—	—	1.06 kg1060 g
TIMKEN6310-ZDeep groove ball bearing	Recorded bore (d) 50 mm 1.968504 in Recorded outside dimension (D) 110 mm 4.330709 in Catalogue width (symbol unverified) 27 mm 1.062992 in	57.5 kN	35.3 kN	—	—	1.06 kg1060 g
TIMKEN6310-Z-C3Deep groove ball bearing	Recorded bore (d) 50 mm 1.968504 in Recorded outside dimension (D) 110 mm 4.330709 in Catalogue width (symbol unverified) 27 mm 1.062992 in	57.5 kN	35.3 kN	—	—	1.06 kg1060 g
TIMKEN6310-Z-NRDeep groove ball bearing	Recorded bore (d) 50 mm 1.968504 in Recorded outside dimension (D) 110 mm 4.330709 in Catalogue width (symbol unverified) 27 mm 1.062992 in	57.5 kN	35.3 kN	—	—	1.06 kg1060 g
TIMKEN6310-Z-NR-C3Deep groove ball bearing	Recorded bore (d) 50 mm 1.968504 in Recorded outside dimension (D) 110 mm 4.330709 in Catalogue width (symbol unverified) 27 mm 1.062992 in	57.5 kN	35.3 kN	—	—	1.05 kg1050 g
TIMKEN6310-ZZDeep groove ball bearing	Recorded bore (d) 50 mm 1.968504 in Recorded outside dimension (D) 110 mm 4.330709 in Catalogue width (symbol unverified) 27 mm 1.062992 in	57.5 kN	35.3 kN	—	—	1.06 kg1060 g
TIMKEN6310-ZZ-C3Deep groove ball bearing	Recorded bore (d) 50 mm 1.968504 in Recorded outside dimension (D) 110 mm 4.330709 in Catalogue width (symbol unverified) 27 mm 1.062992 in	57.5 kN	35.3 kN	—	—	1.06 kg1060 g
TIMKEN6310-ZZ-NRDeep groove ball bearing	Recorded bore (d) 50 mm 1.968504 in Recorded outside dimension (D) 110 mm 4.330709 in Catalogue width (symbol unverified) 27 mm 1.062992 in	57.5 kN	35.3 kN	—	—	1.06 kg1060 g
NSK6310DDUDeep groove ball bearing	Bore diameter (d) 50 mm 1.968504 in Outside diameter (D) 110 mm 4.330709 in Bearing width (B) 27 mm 1.062992 in	68 kN	38.5 kN	—	—	—
NSK6310VVDeep groove ball bearing	Bore diameter (d) 50 mm 1.968504 in Outside diameter (D) 110 mm 4.330709 in Bearing width (B) 27 mm 1.062992 in	68 kN	38.5 kN	—	—	—
NSK6310ZZDeep groove ball bearing	Bore diameter (d) 50 mm 1.968504 in Outside diameter (D) 110 mm 4.330709 in Bearing width (B) 27 mm 1.062992 in	68 kN	38.5 kN	—	—	—
KOYO6310 2RDDeep groove ball bearing	Bore diameter (d) 50 mm 1.968504 in Outside diameter (D) 110 mm 4.330709 in Width (B) 27 mm 1.062992 in	77.5 kN	38.3 kN	—	5500 rpmLimiting Speeds(Grease Lub.): 5500 min-1	1.07 kg1070 g
KOYO6310 2RSDeep groove ball bearing	Bore diameter (d) 50 mm 1.968504 in Outside diameter (D) 110 mm 4.330709 in Width (B) 27 mm 1.062992 in	77.5 kN	38.3 kN	—	4100 rpmLimiting Speeds(Grease Lub.): 4100 min-1	1.07 kg1070 g
KOYO6310 2RUDeep groove ball bearing	Bore diameter (d) 50 mm 1.968504 in Outside diameter (D) 110 mm 4.330709 in Width (B) 27 mm 1.062992 in	77.5 kN	38.3 kN	—	6100 rpmLimiting Speeds(Grease Lub.): 6100 min-1	1.07 kg1070 g
KOYO6310NRDeep groove ball bearing	Bore diameter (d) 50 mm 1.968504 in Outside diameter (D) 110 mm 4.330709 in Width (B) 27 mm 1.062992 in	77.5 kN	38.3 kN	—	6100 rpmLimiting Speeds(Grease Lub.): 6100 min-1Limiting Speeds(Oil Lub.): 7300 min-1	1.07 kg1070 g
KOYO6310 ZZDeep groove ball bearing	Bore diameter (d) 50 mm 1.968504 in Outside diameter (D) 110 mm 4.330709 in Width (B) 27 mm 1.062992 in	77.5 kN	38.3 kN	—	6100 rpmLimiting Speeds(Grease Lub.): 6100 min-1	1.07 kg1070 g
NACHI6310-2NKE9Deep groove ball bearing	Bore diameter (d) 50 mm 1.968504 in Outside diameter (D) 110 mm 4.330709 in Bearing width (B) 27 mm 1.062992 in	78 kN	38 kN	—	—	—
NACHI6310-2NSE9Deep groove ball bearing	Bore diameter (d) 50 mm 1.968504 in Outside diameter (D) 110 mm 4.330709 in Bearing width (B) 27 mm 1.062992 in	78 kN	38 kN	—	—	—
NACHI6310NKE9Deep groove ball bearing	Bore diameter (d) 50 mm 1.968504 in Outside diameter (D) 110 mm 4.330709 in Bearing width (B) 27 mm 1.062992 in	78 kN	38 kN	—	—	—
NACHI6310NSE9Deep groove ball bearing	Bore diameter (d) 50 mm 1.968504 in Outside diameter (D) 110 mm 4.330709 in Bearing width (B) 27 mm 1.062992 in	78 kN	38 kN	—	—	—
NACHI6310ZEDeep groove ball bearing	Bore diameter (d) 50 mm 1.968504 in Outside diameter (D) 110 mm 4.330709 in Bearing width (B) 27 mm 1.062992 in	78 kN	38 kN	—	—	—
NACHI6310ZZEDeep groove ball bearing	Bore diameter (d) 50 mm 1.968504 in Outside diameter (D) 110 mm 4.330709 in Bearing width (B) 27 mm 1.062992 in	78 kN	38 kN	—	—	—

Compare recorded seals, clearance, precision and materials

Manufacturer wording is retained. A missing property is not inferred from another brand or a similar suffix.

Brand / designation	Closure	Original precision	Clearance	Cage	Material	Lubricant
SKF 6310	Without	P6 and tighter width tolerance	CN	Sheet metal	Bearing steel	None
FAG 6310	Without — Not sealed	PN — Normal (ISO 492:2023)	CN (Group N) — Normal internal clearance	JN — Steel sheet metal	Not recorded	Without — Bearing not greased
TIMKEN 6310	Open	Not recorded	Not recorded	Steel cage	Not recorded	Not recorded
NSK 6310	Open	Not recorded	Not recorded	Not recorded	Not recorded	Not recorded
KOYO 6310	Open	Not recorded	Not recorded	Not recorded	Not recorded	Not recorded
NACHI 6310	Open	Not recorded	Not recorded	Not recorded	Not recorded	Not recorded
NTN 6310	open	Not recorded	CN	pressed steel cage	Not recorded	Not recorded
SKF 6310-2RS1	Seal on both sides	P6 and tighter width tolerance	CN	Sheet metal	Bearing steel	Grease
SKF 6310-2RS1/C3	Seal on both sides	Not recorded	C3	Sheet metal	Bearing steel	Grease
SKF 6310-2RS1/C3GEM	Seal on both sides	Not recorded	C3	Sheet metal	Bearing steel	Grease
SKF 6310-2RS1/C3GJN	Seal on both sides	Not recorded	C3	Sheet metal	Bearing steel	Grease
SKF 6310-2RS1/C3LHT23	Seal on both sides	Not recorded	C3	Sheet metal	Bearing steel	Grease
SKF 6310-2RS1/C3WT	Seal on both sides	Not recorded	C3	Sheet metal	Bearing steel	Grease
SKF 6310-2RS1/C4	Seal on both sides	Not recorded	C4	Sheet metal	Bearing steel	Grease
SKF 6310-2RS1/GJN	Seal on both sides	Not recorded	CN	Sheet metal	Bearing steel	Grease
SKF 6310-2RS1/HC5C3WT	Seal on both sides	Not recorded	C3	Sheet metal	Hybrid (ceramic balls)	Grease
SKF 6310-2RS1/MTVM121	Seal on both sides	Not recorded	CN	Sheet metal	Bearing steel	Grease
SKF 6310-2RS1NR	Seal on both sides	Not recorded	CN	Sheet metal	Bearing steel	Grease
SKF 6310 2RSJEM	Seal on both sides	Not recorded	C3	Not recorded	Bearing steel	Grease
SKF 6310 2RSNRJEM	Seal on both sides	Not recorded	C3	Not recorded	Bearing steel	Grease
SKF 6310-2Z	Shield on both sides	P6 and tighter width tolerance	CN	Sheet metal	Bearing steel	Grease
SKF 6310-2Z/C3	Shield on both sides	Not recorded	C3	Sheet metal	Bearing steel	Grease
SKF 6310-2Z/C3GJN	Shield on both sides	Not recorded	C3	Sheet metal	Bearing steel	Grease
SKF 6310-2Z/C3WT	Shield on both sides	Not recorded	C3	Sheet metal	Bearing steel	Grease
SKF 6310-2Z/C4	Shield on both sides	Not recorded	C4	Sheet metal	Bearing steel	Grease
SKF 6310-2Z/GJN	Shield on both sides	Not recorded	CN	Sheet metal	Bearing steel	Grease
SKF 6310-2Z/HC5C3WT	Shield on both sides	Not recorded	C3	Sheet metal	Hybrid (ceramic balls)	Grease
SKF 6310 2ZJEM	Shield on both sides	Not recorded	C3	Not recorded	Bearing steel	Grease
SKF 6310-2ZNR	Shield on both sides	P6 and tighter width tolerance	CN	Not recorded	Bearing steel	Grease
SKF 6310 2ZNRJEM	Shield on both sides	Not recorded	C3	Not recorded	Bearing steel	Grease
SKF 6310-2ZTN9/HC5C3WT	Shield on both sides	Not recorded	C3	Non-metallic	Hybrid (ceramic balls)	Grease
SKF 6310-2Z/VA201	Shield on both sides	Not recorded	Multiples of C5	Sheet metal	High temperature steel	Solid lubricant
SKF 6310-2Z/VA208	Shield on both sides	Not recorded	Multiples of C5	Non-metallic	High temperature steel	Solid lubricant
SKF 6310-2Z/VA228	Shield on both sides	Not recorded	Multiples of C5	Non-metallic	High temperature steel	Solid lubricant
SKF 6310/AXD	Without	P6 and tighter width tolerance	CN	Sheet metal	Bearing steel	None
SKF 6310/C3	Without	Not recorded	C3	Sheet metal	Bearing steel	None
SKF 6310/C3S1	Without	Not recorded	C3	Sheet metal	Bearing steel	None
SKF 6310/C4	Without	Not recorded	C4	Sheet metal	Bearing steel	None
SKF 6310/HC5C3	Without	Not recorded	C3	Sheet metal	Hybrid (ceramic balls)	None
SKF 6310 JEM	Without	Not recorded	C3	Not recorded	Bearing steel	None
SKF 6310 M/C3	Without	Not recorded	C3	Machined brass	Bearing steel	None
SKF 6310 M/C3VL0241	Without	Not recorded	C3	Machined brass	Bearing steel	None
SKF 6310 M/C4VL0241	Without	Not recorded	C4	Machined brass	Bearing steel	None
SKF 6310 N	Without	P6 and tighter width tolerance	CN	Sheet metal	Bearing steel	None
SKF 6310 NR	Without	P6 and tighter width tolerance	CN	Sheet metal	Bearing steel	None
SKF 6310 NR/C3	Without	Not recorded	C3	Sheet metal	Bearing steel	None
SKF 6310 NRJEM	Without	Not recorded	C3	Not recorded	Bearing steel	None
SKF 6310-RS1	Seal on one side	P6 and tighter width tolerance	CN	Sheet metal	Bearing steel	None
SKF 6310-RS1Z/C3S0GJN6	Seal on one side, shield on the other	Not recorded	C3	Sheet metal	Bearing steel	Grease
SKF 6310 RSJEM	Seal on one side	Not recorded	C3	Sheet metal	Bearing steel	None
SKF 6310/VA201	Without	Not recorded	Multiples of C5	Sheet metal	High temperature steel	Solid lubricant
SKF 6310-Z	Shield on one side	P6 and tighter width tolerance	CN	Sheet metal	Bearing steel	None
SKF 6310-Z/C3	Shield on one side	Not recorded	C3	Sheet metal	Bearing steel	None
SKF 6310-Z/C3HS1	Shield on one side	Not recorded	C3H	Sheet metal	Bearing steel	None
SKF 6310-Z/C3S0	Shield on one side	Not recorded	C3	Sheet metal	Bearing steel	None
SKF 6310 ZJEM	Shield on one side	Not recorded	C3	Not recorded	Bearing steel	None
SKF 6310-ZNBR/C3	Shield on one side	Not recorded	C3	Sheet metal	Bearing steel	None
SKF 6310 ZNBRJEM	Shield on one side	Not recorded	C3	Sheet metal	Bearing steel	None
SKF 6310-ZNR	Shield on one side	P6 and tighter width tolerance	CN	Sheet metal	Bearing steel	None
FAG 6310-2RSR	2RSR — Contact seal on both sides	PN — Normal (ISO 492:2023)	CN (Group N) — Normal internal clearance	JN — Steel sheet metal	Not recorded	GA13 — Ball bearing and insert bearing grease
FAG 6310-2RSR-C3	2RSR — Contact seal on both sides	PN — Normal (ISO 492:2023)	C3 (Group 3) — Internal clearance larger than CN	JN — Steel sheet metal	Not recorded	GA13 — Ball bearing and insert bearing grease
FAG 6310-2RSR-C4	2RSR — Contact seal on both sides	PN — Normal (ISO 492:2023)	C4 (Group 4) — Internal clearance larger than C3	JN — Steel sheet metal	Not recorded	GA13 — Ball bearing and insert bearing grease
FAG 6310-2RSR-L038	2RSR — Contact seal on both sides	PN — Normal (ISO 492:2023)	CN (Group N) — Normal internal clearance	JN — Steel sheet metal	Not recorded	L038 — Grease (L038/customer specific)
FAG 6310-2RSR-L038-C3	2RSR — Contact seal on both sides	PN — Normal (ISO 492:2023)	C3 (Group 3) — Internal clearance larger than CN	JN — Steel sheet metal	Not recorded	L038 — Grease (L038/customer specific)
FAG 6310-2RSR-L038-C4	2RSR — Contact seal on both sides	PN — Normal (ISO 492:2023)	C4 (Group 4) — Internal clearance larger than C3	JN — Steel sheet metal	Not recorded	L038 — Grease (L038/customer specific)
FAG 6310-2RSR-L140	2RSR — Contact seal on both sides	PN — Normal (ISO 492:2023)	CN (Group N) — Normal internal clearance	JN — Steel sheet metal	Not recorded	L140 — Grease (L140/customer specific)
FAG 6310-2RSR-L140-C3	2RSR — Contact seal on both sides	PN — Normal (ISO 492:2023)	C3 (Group 3) — Internal clearance larger than CN	JN — Steel sheet metal	Not recorded	L140 — Grease (L140/customer specific)
FAG 6310-2Z	2Z — Non-contact shield on both sides	PN — Normal (ISO 492:2023)	CN (Group N) — Normal internal clearance	JN — Steel sheet metal	Not recorded	GA13 — Ball bearing and insert bearing grease
FAG 6310-2Z-C3	2Z — Non-contact shield on both sides	PN — Normal (ISO 492:2023)	C3 (Group 3) — Internal clearance larger than CN	JN — Steel sheet metal	Not recorded	GA13 — Ball bearing and insert bearing grease
FAG 6310-2Z-C4	2Z — Non-contact shield on both sides	PN — Normal (ISO 492:2023)	C4 (Group 4) — Internal clearance larger than C3	JN — Steel sheet metal	Not recorded	GA13 — Ball bearing and insert bearing grease
FAG 6310-2Z-L038	2Z — Non-contact shield on both sides	PN — Normal (ISO 492:2023)	CN (Group N) — Normal internal clearance	JN — Steel sheet metal	Not recorded	L038 — Grease (L038/customer specific)
FAG 6310-2Z-L038-C3	2Z — Non-contact shield on both sides	PN — Normal (ISO 492:2023)	C3 (Group 3) — Internal clearance larger than CN	JN — Steel sheet metal	Not recorded	L038 — Grease (L038/customer specific)
FAG 6310-2Z-L069-C3	2Z — Non-contact shield on both sides	PN — Normal (ISO 492:2023)	C3 (Group 3) — Internal clearance larger than CN	JN — Steel sheet metal	Not recorded	L069 — Low noise high-temperature grease, interchangeable with grease L207
FAG 6310-2Z-L140	2Z — Non-contact shield on both sides	PN — Normal (ISO 492:2023)	CN (Group N) — Normal internal clearance	JN — Steel sheet metal	Not recorded	L140 — Grease (L140/customer specific)
FAG 6310-2Z-L140-C3	2Z — Non-contact shield on both sides	PN — Normal (ISO 492:2023)	C3 (Group 3) — Internal clearance larger than CN	JN — Steel sheet metal	Not recorded	L140 — Grease (L140/customer specific)
FAG 6310-2Z-L207-C3	2Z — Non-contact shield on both sides	PN — Normal (ISO 492:2023)	C3 (Group 3) — Internal clearance larger than CN	JN — Steel sheet metal	Not recorded	L207 — Low noise high-temperature grease, interchangeable with grease L069
FAG 6310-C	Without — Not sealed	P6 — Class 6 (ISO 492:2023)	CN (Group N) — Normal internal clearance	JN — Steel sheet metal	Not recorded	Without — Bearing not greased
FAG 6310-C-2HRS	2HRS — Contact seal on both sides	P6 — Class 6 (ISO 492:2023)	CN (Group N) — Normal internal clearance	JN — Steel sheet metal	Not recorded	GA13 — Ball bearing and insert bearing grease
FAG 6310-C-2HRS-C3	2HRS — Contact seal on both sides	P6 — Class 6 (ISO 492:2023)	C3 (Group 3) — Internal clearance larger than CN	JN — Steel sheet metal	Not recorded	GA13 — Ball bearing and insert bearing grease
FAG 6310-C-2HRS-C4	2HRS — Contact seal on both sides	P6 — Class 6 (ISO 492:2023)	C4 (Group 4) — Internal clearance larger than C3	JN — Steel sheet metal	Not recorded	GA13 — Ball bearing and insert bearing grease
FAG 6310-C-2HRS-L138-C3	2HRS — Contact seal on both sides	P6 — Class 6 (ISO 492:2023)	C3 (Group 3) — Internal clearance larger than CN	JN — Steel sheet metal	Not recorded	L138 — Grease (L138/customer specific)
FAG 6310-C-2Z	2Z — Non-contact shield on both sides	P6 — Class 6 (ISO 492:2023)	CN (Group N) — Normal internal clearance	JN — Steel sheet metal	Not recorded	GA13 — Ball bearing and insert bearing grease
FAG 6310-C-2Z-C3	2Z — Non-contact shield on both sides	P6 — Class 6 (ISO 492:2023)	C3 (Group 3) — Internal clearance larger than CN	JN — Steel sheet metal	Not recorded	GA13 — Ball bearing and insert bearing grease
FAG 6310-C-2Z-C4	2Z — Non-contact shield on both sides	P6 — Class 6 (ISO 492:2023)	C4 (Group 4) — Internal clearance larger than C3	JN — Steel sheet metal	Not recorded	GA13 — Ball bearing and insert bearing grease
FAG 6310-C-2Z-L138	2Z — Non-contact shield on both sides	P6 — Class 6 (ISO 492:2023)	CN (Group N) — Normal internal clearance	JN — Steel sheet metal	Not recorded	L138 — Grease (L138/customer specific)
FAG 6310-C-2Z-L138-C3	2Z — Non-contact shield on both sides	P6 — Class 6 (ISO 492:2023)	C3 (Group 3) — Internal clearance larger than CN	JN — Steel sheet metal	Not recorded	L138 — Grease (L138/customer specific)
FAG 6310-C-2Z-L207-C3	2Z — Non-contact shield on both sides	P6 — Class 6 (ISO 492:2023)	C3 (Group 3) — Internal clearance larger than CN	JN — Steel sheet metal	Not recorded	L207 — Low noise high-temperature grease, interchangeable with grease L069
FAG 6310-C-2Z-L408-C3	2Z — Non-contact shield on both sides	P6 — Class 6 (ISO 492:2023)	C3 (Group 3) — Internal clearance larger than CN	JN — Steel sheet metal	Not recorded	L408 — Grease (L408/customer specific)
FAG 6310-C3	Without — Not sealed	PN — Normal (ISO 492:2023)	C3 (Group 3) — Internal clearance larger than CN	JN — Steel sheet metal	Not recorded	Without — Bearing not greased
FAG 6310-C4	Without — Not sealed	PN — Normal (ISO 492:2023)	C4 (Group 4) — Internal clearance larger than C3	JN — Steel sheet metal	Not recorded	Without — Bearing not greased
FAG 6310-C-C3	Without — Not sealed	P6 — Class 6 (ISO 492:2023)	C3 (Group 3) — Internal clearance larger than CN	JN — Steel sheet metal	Not recorded	Without — Bearing not greased
FAG 6310-C-C4	Without — Not sealed	P6 — Class 6 (ISO 492:2023)	C4 (Group 4) — Internal clearance larger than C3	JN — Steel sheet metal	Not recorded	Without — Bearing not greased
FAG 6310-C-HRS	HRS — Contact seal on one side	P6 — Class 6 (ISO 492:2023)	CN (Group N) — Normal internal clearance	JN — Steel sheet metal	Not recorded	Without — Bearing not greased
FAG 6310-C-HRS-C3	HRS — Contact seal on one side	P6 — Class 6 (ISO 492:2023)	C3 (Group 3) — Internal clearance larger than CN	JN — Steel sheet metal	Not recorded	Without — Bearing not greased
FAG 6310-C-M	Without — Not sealed	P6 — Class 6 (ISO 492:2023)	CN (Group N) — Normal internal clearance	M — Solid brass cage, rolling element guided	Not recorded	Without — Bearing not greased
FAG 6310-C-M-C3	Without — Not sealed	P6 — Class 6 (ISO 492:2023)	C3 (Group 3) — Internal clearance larger than CN	M — Solid brass cage, rolling element guided	Not recorded	Without — Bearing not greased
FAG 6310-C-M-C4	Without — Not sealed	P6 — Class 6 (ISO 492:2023)	C4 (Group 4) — Internal clearance larger than C3	M — Solid brass cage, rolling element guided	Not recorded	Without — Bearing not greased
FAG 6310-C-N	Without — Not sealed	P6 — Class 6 (ISO 492:2023)	CN (Group N) — Normal internal clearance	JN — Steel sheet metal	Not recorded	Without — Bearing not greased
FAG 6310-C-N-C3	Without — Not sealed	P6 — Class 6 (ISO 492:2023)	C3 (Group 3) — Internal clearance larger than CN	JN — Steel sheet metal	Not recorded	Without — Bearing not greased
FAG 6310-C-TVH-C3	Without — Not sealed	P6 — Class 6 (ISO 492:2023)	C3 (Group 3) — Internal clearance larger than CN	TVH — Solid cage made of glass-fiber reinforced polyamid PA66	Not recorded	Without — Bearing not greased
FAG 6310-C-Z	Z — Non-contact shield on one Side	P6 — Class 6 (ISO 492:2023)	CN (Group N) — Normal internal clearance	JN — Steel sheet metal	Not recorded	Without — Bearing not greased
FAG 6310-C-Z-C3	Z — Non-contact shield on one Side	P6 — Class 6 (ISO 492:2023)	C3 (Group 3) — Internal clearance larger than CN	JN — Steel sheet metal	Not recorded	Without — Bearing not greased
FAG 6310-C-Z-HRS-L100-C3	Z-HRS — Non-contact shield on one Side, Contact seal on the other side	P6 — Class 6 (ISO 492:2023)	C3 (Group 3) — Internal clearance larger than CN	JN — Steel sheet metal	Not recorded	L100 — Grease (L100/customer specific)
FAG 6310-H-2RSR-SN-C3>N	2RSR — Contact seal on both sides	PN — Normal (ISO 492:2023)	C3 (Group 3) — Internal clearance larger than CN	JN — Steel sheet metal	Not recorded	Lubricating grease
FAG 6310-H-2RSR-SN-L038-C3>N	2RSR — Contact seal on both sides	PN — Normal (ISO 492:2023)	C3 (Group 3) — Internal clearance larger than CN	JN — Steel sheet metal	Not recorded	L038 — Grease (L038/customer specific)
FAG 6310-H-2RSR-SN-L138-C3>N	2RSR — Contact seal on both sides	PN — Normal (ISO 492:2023)	C3 (Group 3) — Internal clearance larger than CN	JN — Steel sheet metal	Not recorded	L138 — Grease (L138/customer specific)
FAG 6310-H-2RSR-SN>N	2RSR — Contact seal on both sides	PN — Normal (ISO 492:2023)	CN (Group N) — Normal internal clearance	JN — Steel sheet metal	Not recorded	Lubricating grease
FAG 6310-H-2Z-SN-C3>N	2Z — Non-contact shield on both sides	PN — Normal (ISO 492:2023)	C3 (Group 3) — Internal clearance larger than CN	JN — Steel sheet metal	Not recorded	Lubricating grease
FAG 6310-H-2Z-SN>N	2Z — Non-contact shield on both sides	PN — Normal (ISO 492:2023)	CN (Group N) — Normal internal clearance	JN — Steel sheet metal	Not recorded	Lubricating grease
FAG 6310-H305	Without — Not sealed	PN — Normal (ISO 492:2023)	CN (Group N) — Normal internal clearance	JN — Steel sheet metal	Not recorded	Without — Bearing not greased
FAG 6310-H-SN-C3>N	Without — Not sealed	PN — Normal (ISO 492:2023)	C3 (Group 3) — Internal clearance larger than CN	JN — Steel sheet metal	Not recorded	Without — Bearing not greased
FAG 6310-H-SN>N	Without — Not sealed	PN — Normal (ISO 492:2023)	CN (Group N) — Normal internal clearance	JN — Steel sheet metal	Not recorded	Without — Bearing not greased
FAG 6310-J20AA-C3	Without — Not sealed	PN — Normal (ISO 492:2023)	C3 (Group 3) — Internal clearance larger than CN	JN — Steel sheet metal	Not recorded	Without — Bearing not greased
FAG 6310-M-J20AA	Without — Not sealed	PN — Normal (ISO 492:2023)	CN (Group N) — Normal internal clearance	M — Solid brass cage, rolling element guided	Not recorded	Without — Bearing not greased
FAG 6310-M-J20AA-C3	Without — Not sealed	PN — Normal (ISO 492:2023)	C3 (Group 3) — Internal clearance larger than CN	M — Solid brass cage, rolling element guided	Not recorded	Without — Bearing not greased
FAG 6310-N	Without — Not sealed	PN — Normal (ISO 492:2023)	CN (Group N) — Normal internal clearance	JN — Steel sheet metal	Not recorded	Without — Bearing not greased
FAG 6310-NR	Without — Not sealed	PN — Normal (ISO 492:2023)	CN (Group N) — Normal internal clearance	JN — Steel sheet metal	Not recorded	Without — Bearing not greased
FAG 6310-NR-C3	Without — Not sealed	PN — Normal (ISO 492:2023)	C3 (Group 3) — Internal clearance larger than CN	JN — Steel sheet metal	Not recorded	Without — Bearing not greased
FAG 6310-RSR	RSR — Contact seal on one side	PN — Normal (ISO 492:2023)	CN (Group N) — Normal internal clearance	JN — Steel sheet metal	Not recorded	Without — Bearing not greased
FAG 6310-Z	Z — Non-contact shield on one Side	PN — Normal (ISO 492:2023)	CN (Group N) — Normal internal clearance	JN — Steel sheet metal	Not recorded	Without — Bearing not greased
FAG 6310-Z-C3	Z — Non-contact shield on one Side	PN — Normal (ISO 492:2023)	C3 (Group 3) — Internal clearance larger than CN	JN — Steel sheet metal	Not recorded	Without — Bearing not greased
FAG 6310-Z-N	Z — Non-contact shield on one Side	PN — Normal (ISO 492:2023)	CN (Group N) — Normal internal clearance	JN — Steel sheet metal	Not recorded	Without — Bearing not greased
TIMKEN 6310-2RS	Sealed	Not recorded	Not recorded	Steel cage	Not recorded	Not recorded
TIMKEN 6310-2RS-C3	Sealed	Not recorded	Not recorded	Steel cage	Not recorded	Not recorded
TIMKEN 6310-2RS-C3-FS953F	Sealed	Not recorded	Not recorded	Steel cage	Not recorded	Not recorded
TIMKEN 6310-2RS-C3/VSL609	Sealed	Not recorded	Not recorded	Steel cage	Not recorded	Not recorded
TIMKEN 6310-2RS-C4	Sealed	Not recorded	Not recorded	Steel cage	Not recorded	Not recorded
TIMKEN 6310-2RS-NR	Sealed	Not recorded	Not recorded	Steel cage	Not recorded	Not recorded
TIMKEN 6310-2RS/VSL609	Sealed	Not recorded	Not recorded	Steel cage	Not recorded	Not recorded
TIMKEN 6310-2RZ	Sealed	Not recorded	Not recorded	Steel cage	Not recorded	Not recorded
TIMKEN 6310-2RZ-C3	Sealed	Not recorded	Not recorded	Steel cage	Not recorded	Not recorded
TIMKEN 6310-C3	Open	Not recorded	Not recorded	Steel cage	Not recorded	Not recorded
TIMKEN 6310-C4	Open	Not recorded	Not recorded	Steel cage	Not recorded	Not recorded
TIMKEN 6310M-C3	Open	Not recorded	Not recorded	Brass cage	Not recorded	Not recorded
TIMKEN 6310-NR	Open	Not recorded	Not recorded	Steel cage	Not recorded	Not recorded
TIMKEN 6310-NR-C3	Open	Not recorded	Not recorded	Steel cage	Not recorded	Not recorded
TIMKEN 6310-RS	Sealed	Not recorded	Not recorded	Steel cage	Not recorded	Not recorded
TIMKEN 6310-RS-C3	Sealed	Not recorded	Not recorded	Steel cage	Not recorded	Not recorded
TIMKEN 6310/VSL609	Open	Not recorded	Not recorded	Steel cage	Not recorded	Not recorded
TIMKEN 6310-Z	Shielded	Not recorded	Not recorded	Steel cage	Not recorded	Not recorded
TIMKEN 6310-Z-C3	Shielded	Not recorded	Not recorded	Steel cage	Not recorded	Not recorded
TIMKEN 6310-Z-NR	Shielded	Not recorded	Not recorded	Steel cage	Not recorded	Not recorded
TIMKEN 6310-Z-NR-C3	Shielded	Not recorded	Not recorded	Steel cage	Not recorded	Not recorded
TIMKEN 6310-ZZ	Shielded	Not recorded	Not recorded	Steel cage	Not recorded	Not recorded
TIMKEN 6310-ZZ-C3	Shielded	Not recorded	Not recorded	Steel cage	Not recorded	Not recorded
TIMKEN 6310-ZZ-NR	Shielded	Not recorded	Not recorded	Steel cage	Not recorded	Not recorded
NSK 6310DDU	Contact rubber seals on both sides	Not recorded	Not recorded	Not recorded	Not recorded	Not recorded
NSK 6310VV	Non-contact rubber seals on both sides	Not recorded	Not recorded	Not recorded	Not recorded	Not recorded
NSK 6310ZZ	Metal shields on both sides	Not recorded	Not recorded	Not recorded	Not recorded	Not recorded
KOYO 6310 2RD	Extremely light contact sealed	Not recorded	Not recorded	Not recorded	Not recorded	Not recorded
KOYO 6310 2RS	Contact sealed	Not recorded	Not recorded	Not recorded	Not recorded	Not recorded
KOYO 6310 2RU	Non-contact sealed	Not recorded	Not recorded	Not recorded	Not recorded	Not recorded
KOYO 6310NR	Not recorded	Not recorded	Not recorded	Not recorded	Not recorded	Not recorded
KOYO 6310 ZZ	Shielded ZZ	Not recorded	Not recorded	Not recorded	Not recorded	Not recorded
NACHI 6310-2NKE9	Two non-contact seals	Not recorded	Not recorded	Not recorded	Not recorded	Not recorded
NACHI 6310-2NSE9	Two contact seals	Not recorded	Not recorded	Not recorded	Not recorded	Not recorded
NACHI 6310NKE9	One non-contact seal	Not recorded	Not recorded	Not recorded	Not recorded	Not recorded
NACHI 6310NSE9	One contact seal	Not recorded	Not recorded	Not recorded	Not recorded	Not recorded
NACHI 6310ZE	One shield	Not recorded	Not recorded	Not recorded	Not recorded	Not recorded
NACHI 6310ZZE	Two shields	Not recorded	Not recorded	Not recorded	Not recorded	Not recorded

How to compare these values

Use the displayed dimension names and original symbols. Housing length L, height H2 and flange width are not bearing outside diameter D. A catalogue width with an unverified symbol must not be assumed to be inner-ring width B or assembly width T. Open the product record for mounting dimensions and geometry.
Inch values are calculated from the recorded millimetres using 25.4 mm per inch, rounded to six decimal places. They do not change a metric bearing into an inch-series bearing. Gram values are converted from the recorded mass in kilograms.
C and C0 describe different rating conditions. They are not a single safe working-load limit and cannot replace an application load calculation.
Reference and limiting speeds are separate catalogue values. The source grease/oil context is shown where recorded. Lubricant, seals, loads, fit, clearance and cooling affect the usable operating speed.
A common base number does not prove equivalent seals, clearance, precision, material or interchangeability. Open the full designation for these fields.

View full technical record →KOYO

6310 2RS

Deep groove ball bearing

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Nominal dimensions are not shaft-fit tolerances. Different variants can add grooves, flanges, wider rings or assembly components. When the table has different dimensions, the complete designation—not the shared prefix—controls.

Measurement guide →Cross-reference checks →

Reference basis & data limits

Manufacturer terminology is retained in the product records. Technical reference basis: JTEKT Basic Bearing Knowledge (boundary dimensions, tolerance classes and lubrication); NSK Bearing ABCs (lubrication, designations and clearance); NTN technical FAQs (closure codes and component interchange); SKF rolling-bearing selection and maintenance references.

Selection workflows and catalogue grouping are BearingScope editorial aids. Verify the current drawing and application requirements before using a candidate. Missing database information is not converted into an assumed match.

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6310 dimensions and recorded technical data

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Bearing and component measurements

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Bearing and component measurements

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Bearing and component measurements

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Bearing and component measurements

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Bearing and component measurements

Bearing and component measurements

Bearing and component measurements

Bearing and component measurements

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Bearing and component measurements

Mounting limits and abutments

Bearing and component measurements

Mounting limits and abutments

Bearing and component measurements

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Bearing and component measurements

Mounting limits and abutments

Bearing and component measurements

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Bearing and component measurements

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Bearing and component measurements

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Catalogue parameters for 6310

Dimensions

Performance

Properties

Logistics

Engineering — Dimensions

Engineering — Abutment dimensions

Engineering — Calculation data

Engineering — Tolerances of run-out

Main Dimensions & Performance Data

Mounting dimensions

Dimensions

Temperature range

Calculation factors

Product characteristics

Capabilities & suitability

Technical Data

How to compare these values

Related prefix matches — other model numbers may appear

6310

6310

6310

6310

6310

6310

6310

6310-2NKE9

6310-2NSE9

6310 2RD

6310-2RS

6310 2RS

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Reference basis & data limits

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