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NJ 313 bearing dimensions & suffix variants

Look up recorded dimensions for designations beginning with NJ 313. The table retains complete manufacturer designations so special suffixes and different dimensional variants remain visible.

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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

NJ 313 dimensions and recorded technical data

The recorded NJ 313 base designation measures 65×140×33 mm (inside diameter d × outside diameter D × width B). This answer uses unsuffixed records from 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. 16 recorded variants are listed. A dash means the value is missing, not zero.

Exact designation reference

Catalogue parameters for NJ 313

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.

NTN NJ313

NTN NJ313 — 24 recorded parameters

Single row cylindrical roller bearings

Reference: NTN Europe public product catalogue; source snapshot 2026-10-02.

For this exact NTN NJ313 record, the nominal envelope is 65×140×33 mm (d = internal diameter; D = external diameter; B = bearing/inner ring width). These are bearing or washer dimensions, not shaft/housing fit limits.

Calculated inch equivalent: 2.559055×5.511811×1.299213 in, in the same axis order. The conversion uses exactly 25.4 mm per inch and rounds to six decimals; it is not an inch-series designation or a machining tolerance.

Keep the prefix when matching this cylindrical roller bearing. The source construction below, including any axial-load direction statement, belongs only to the complete recorded designation; a similar NU, NJ or NUP number is not an approved substitute.

Use grease- and oil-qualified speed entries only for the named lubrication condition. Dynamic C and static C0 are catalogue ratings, not a universal safe load or installation approval; shoulder and fillet limits are separate from boundary size.

Dimensions and properties

Parameter	Source symbol	Recorded value
Internal diameter	d	65 mm
External diameter	D	140 mm
Bearing/Inner ring width	B	33 mm
Upper roller diameter	E	121.5 mm
Under roller diameter	F	83.5 mm
IR flange outer diameter	d1	91 mm
Min fillet radius	rs	2.1 mm
Min fillet radius	r1s	2.1 mm
Radial clearance class	Not separately recorded	CN
Mass	Not separately recorded	2.325 kg

Performance

Parameter	Source symbol	Recorded value
Dynamic load	C	150 kN
Static load	C0	139 kN
Fatigue limit load	Cu	16.8 kN
Oil lubrication limit speed	N lim	6000 r/min
Grease lubrication limit speed	N lim	5100 r/min
Min operating temperature	Tmin	-40 °C
Max operating temperature	Tmax	120 °C

Mounting dimensions

Parameter	Source symbol	Recorded value
Min shoulder diameter IR	da min	76 mm
Small face shoulder max diameter	da max	81 mm
Min inner ring GO diameter	dc min	93 mm
Max shoulder diameter OR	Da max	129 mm
Max fillet radius	ra max	2 mm

Product characteristics

Parameter	Source symbol	Recorded value
Catalogue construction	Not separately recorded	Single row cylindrical roller bearing, single direction for axial loads, separable, pressed steel cage.
Cage construction	Not separately recorded	pressed steel cage.

Open NTN NJ313 product record →

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Brand / full designation	Named dimensions (mm / in)	Dynamic C (kN)	Static C0 (kN)	Reference speed (rpm)	Limiting speed (rpm)	Mass (kg / g)
NTNNJ313Cylindrical roller bearing	Internal diameter (d) 65 mm 2.559055 in External diameter (D) 140 mm 5.511811 in Bearing/Inner ring width (B) 33 mm 1.299213 in	150 kN	139 kN	—	—	2.325 kg2325 g
SKFNJ 313 ECJSingle row cylindrical roller bearing, NJ design	Bore diameter (d) 65 mm 2.559055 in Outside diameter (D) 140 mm 5.511811 in Width (B) 33 mm 1.299213 in	212 kN	196 kN	5300 rpm	6000 rpm	2.32 kg2320 g
SKFNJ 313 ECJ/C3Single row cylindrical roller bearing, NJ design	Recorded bore (d) 65 mm 2.559055 in Recorded outside dimension (D) 140 mm 5.511811 in Catalogue width (symbol unverified) 33 mm 1.299213 in	212 kN	196 kN	5300 rpm	6000 rpm	2.32 kg2320 g
SKFNJ 313 ECMSingle row cylindrical roller bearing, NJ design	Bore diameter (d) 65 mm 2.559055 in Outside diameter (D) 140 mm 5.511811 in Width (B) 33 mm 1.299213 in	212 kN	196 kN	5300 rpm	6000 rpm	2.6 kg2600 g
SKFNJ 313 ECMLSingle row cylindrical roller bearing, NJ design	Bore diameter (d) 65 mm 2.559055 in Outside diameter (D) 140 mm 5.511811 in Width (B) 33 mm 1.299213 in	212 kN	196 kN	5300 rpm	9500 rpm	2.53 kg2530 g
SKFNJ 313 ECML/C3Single row cylindrical roller bearing, NJ design	Recorded bore (d) 65 mm 2.559055 in Recorded outside dimension (D) 140 mm 5.511811 in Catalogue width (symbol unverified) 33 mm 1.299213 in	212 kN	196 kN	5300 rpm	9500 rpm	2.53 kg2530 g
SKFNJ 313 ECPSingle row cylindrical roller bearing, NJ design	Bore diameter (d) 65 mm 2.559055 in Outside diameter (D) 140 mm 5.511811 in Width (B) 33 mm 1.299213 in	212 kN	196 kN	5300 rpm	6000 rpm	2.3 kg2300 g
SKFNJ 313 ECP/C3Single row cylindrical roller bearing, NJ design	Recorded bore (d) 65 mm 2.559055 in Recorded outside dimension (D) 140 mm 5.511811 in Catalogue width (symbol unverified) 33 mm 1.299213 in	212 kN	196 kN	5300 rpm	6000 rpm	2.3 kg2300 g
SKFNJ 313 ECP/C4Single row cylindrical roller bearing, NJ design	Recorded bore (d) 65 mm 2.559055 in Recorded outside dimension (D) 140 mm 5.511811 in Catalogue width (symbol unverified) 33 mm 1.299213 in	212 kN	196 kN	5300 rpm	6000 rpm	2.3 kg2300 g
FAGNJ313-E-XL-M1Cylindrical roller bearing	Bore diameter (d) 65 mm 2.559055 in Outside diameter (D) 140 mm 5.511811 in Width (B) 33 mm 1.299213 in	214 kN	191 kN	4800 rpm	8800 rpm	2.55 kg2550 g
FAGNJ313-E-XL-TVP2Cylindrical roller bearing	Bore diameter (d) 65 mm 2.559055 in Outside diameter (D) 140 mm 5.511811 in Width (B) 33 mm 1.299213 in	214 kN	191 kN	4800 rpm	6800 rpm	2.28 kg2280 g
TIMKENNJ313EJCylindrical roller bearing	Recorded bore (d) 65 mm 2.559055 in Recorded outside dimension (D) 140 mm 5.511811 in Catalogue width (symbol unverified) 33 mm 1.299213 in	220 kN	196 kN	—	—	2.3 kg2300 g
TIMKENNJ313EJC3Cylindrical roller bearing	Recorded bore (d) 65 mm 2.559055 in Recorded outside dimension (D) 140 mm 5.511811 in Catalogue width (symbol unverified) 33 mm 1.299213 in	220 kN	196 kN	—	—	2.3 kg2300 g
NSKNJ313EMCylindrical roller bearing	Bore diameter (d) 65 mm 2.559055 in Outside diameter (D) 140 mm 5.511811 in Bearing width (B) 33 mm 1.299213 in	222 kN	191 kN	—	—	—
NSKNJ313WCylindrical roller bearing	Bore diameter (d) 65 mm 2.559055 in Outside diameter (D) 140 mm 5.511811 in Bearing width (B) 33 mm 1.299213 in	166 kN	139 kN	—	—	—
KOYONJ313RCylindrical roller bearing	Bore diameter (d) 65 mm 2.559055 in Outside diameter (D) 140 mm 5.511811 in Width (B) 33 mm 1.299213 in	226 kN	191 kN	—	4300 rpmLimiting Speeds(Grease Lub.): 4300 min-1Limiting Speeds(Oil Lub.): 5700 min-1	2.37 kg2370 g

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
NTN NJ313	Not recorded	Not recorded	CN	pressed steel cage.	Not recorded	Not recorded
SKF NJ 313 ECJ	Without	Not recorded	CN	Sheet metal	Not recorded	None
SKF NJ 313 ECJ/C3	Without	Not recorded	C3	Sheet metal	Not recorded	None
SKF NJ 313 ECM	Without	Not recorded	CN	Machined brass	Not recorded	None
SKF NJ 313 ECML	Without	Not recorded	CN	Machined brass	Not recorded	None
SKF NJ 313 ECML/C3	Without	Not recorded	C3	Machined brass	Not recorded	None
SKF NJ 313 ECP	Without	Not recorded	CN	Non-metallic	Not recorded	None
SKF NJ 313 ECP/C3	Without	Not recorded	C3	Non-metallic	Not recorded	None
SKF NJ 313 ECP/C4	Without	Not recorded	C4	Non-metallic	Not recorded	None
FAG NJ313-E-XL-M1	Not recorded	PN — Normal (ISO 492:2023)	CN (Group N) — Normal internal clearance	M1 — Two Piece Brass Cage Roller Guided	Not recorded	Not recorded
FAG NJ313-E-XL-TVP2	Not recorded	PN — Normal (ISO 492:2023)	CN (Group N) — Normal internal clearance	TVP2 — Solid Window Cage made from PA66	Not recorded	Not recorded
TIMKEN NJ313EJ	Open	Not recorded	Not recorded	Window Steel cage	Not recorded	Not recorded
TIMKEN NJ313EJC3	Open	Not recorded	Not recorded	Window Steel cage	Not recorded	Not recorded
NSK NJ313EM	Not recorded	Not recorded	Not recorded	Machined brass	Not recorded	Not recorded
NSK NJ313W	Not recorded	Not recorded	Not recorded	Pressed steel	Not recorded	Not recorded
KOYO NJ313R	Not recorded	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.

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Related prefix matches — other model numbers may appear

These discovery results can contain a longer number or a different component. They are not specifications for the requested exact model. Open the complete product to inspect its original geometry.

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