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6234 bearing dimensions & suffix variants

Look up recorded dimensions for designations beginning with 6234. The table retains complete manufacturer designations so special suffixes and different dimensional variants remain visible.

On this page6 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.

For tapered assemblies use total width T; for units or flanged bearings also check the mounting drawing.

Source-labelled catalogue reference

6234 — PEER catalogue dimensions

Independent technical reference from PEER’s historical 2009 sheets; checked 2026-10-03. These are catalogue records, not current-stock claims or replacement approvals. Printed units are kept separate.

PEER nominal envelope — d is bore, D is outside diameter, B is width
Full catalogue modeld×D×B (mm)d×D×B (in)Closed width / execution scope
PEER · 6200 series6234170×310×52 mmPrinted metric row6.6929×12.2047×2.0472 inBase designation only; complete closure execution must be checked

Read ratings without transferring them to another execution

Cr and Cor are catalogue basic load ratings, not allowable application loads. Oil/grease values below are explicitly for open bearings where supplied. They are not sealed-bearing or machine operating-speed approvals. A dash means withheld or not established here.

Published PEER ratings — N and r/min
ModelDynamic Cr / static CorOpen: oil / greaseEvidence boundary
6234212000 / 224000 N2400 / 2000 r/minBase-row catalogue values only; no cross-brand transfer.

Printed decimal conversions inherit catalogue rounding; more decimal places do not create manufacturing accuracy. Special bores must not be rounded to a nearby metric bearing. The historical table does not establish an exact RS/2RS, NR, ABEC, C3, ceramic, vehicle or kit execution unless explicitly listed. No CAD or interchange approval is implied.

Exact model evidence

6234 dimensions and recorded technical data

The recorded 6234 base designation measures 170×310×52 mm (inside diameter d × outside diameter D × width B). This answer uses unsuffixed records from SKF, NSK, KOYO. 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. 19 recorded variants are listed. A dash means the value is missing, not zero.

Measurement details

Read the original dimensions for 6234

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 6234 — 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

MeasurementSource symbolRecorded value
Bore diameterd170 mm
Deviation limits of mid-range bore diametert Δdmp-0.025 to 0 mm
Outside diameterD310 mm
Deviation limits of mid-range outside diametert ΔDmp-0.035 to 0 mm
WidthB52 mm
Deviation limits of ring widtht ΔBs-0.25 to 0 mm
Shoulder diameterd 1≈ 218.65 mm
Shoulder diameterD 1≈ 259 mm
Chamfer dimensionr 1,2min. 4 mm

Mounting limits and abutments

MeasurementSource symbolRecorded value
Diameter of shaft abutmentd amin. 187 mm
Diameter of housing abutmentD amax. 293 mm
Radius of shaft or housing filletr amax. 3 mm
Open the complete SKF 6234 record →
KOYO 6234 — 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

MeasurementSource symbolRecorded value
Bore diameterd170 mm
Outside diameterD310 mm
WidthB52 mm
Open the complete KOYO 6234 record →
TIMKEN 6234 — 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

MeasurementSource symbolRecorded value
Bore (d)d170 mm
O.D. (D)D310 mm / 12.205 in
Width (B)B52 mm / 2.047 in

Mounting limits and abutments

MeasurementSource symbolRecorded value
Max Shaft Fillet RadiusNot supplied separately4 mm / 0.158 in
Open the complete TIMKEN 6234 record →
Brand / full designationNamed dimensions (mm / in)Dynamic C (kN)Static C0 (kN)Reference speed (rpm)Limiting speed (rpm)Mass (kg / g)
SKF6234Deep groove ball bearing
Bore diameter (d)
170 mm
6.692913 in
Outside diameter (D)
310 mm
12.204724 in
Width (B)
52 mm
2.047244 in
212 kN224 kN4300 rpm2800 rpm16.1 kg16100 g
TIMKEN6234Deep groove ball bearing
Recorded bore (d)
170 mm
6.692913 in
Recorded outside dimension (D)
310 mm
12.204724 in
Catalogue width (symbol unverified)
52 mm
2.047244 in
212 kN224 kN——14.5 kg14500 g
NSK6234Deep groove ball bearing
Bore diameter (d)
170 mm
6.692913 in
Outside diameter (D)
310 mm
12.204724 in
Bearing width (B)
52 mm
2.047244 in
234 kN224 kN——15.8 kg15800 g
KOYO6234Deep groove ball bearing
Bore diameter (d)
170 mm
6.692913 in
Outside diameter (D)
310 mm
12.204724 in
Width (B)
52 mm
2.047244 in
265 kN223 kN—1900 rpmLimiting Speeds(Grease Lub.): 1900 min-1Limiting Speeds(Oil Lub.): 2300 min-117.5 kg17500 g
SKF6234/C3Deep groove ball bearing
Recorded bore (d)
170 mm
6.692913 in
Recorded outside dimension (D)
310 mm
12.204724 in
Catalogue width (symbol unverified)
52 mm
2.047244 in
212 kN224 kN4300 rpm2800 rpm16.1 kg16100 g
SKF6234 MDeep groove ball bearing
Bore diameter (d)
170 mm
6.692913 in
Outside diameter (D)
310 mm
12.204724 in
Width (B)
52 mm
2.047244 in
212 kN224 kN4300 rpm3800 rpm17.5 kg17500 g
SKF6234 M/C3Deep groove ball bearing
Recorded bore (d)
170 mm
6.692913 in
Recorded outside dimension (D)
310 mm
12.204724 in
Catalogue width (symbol unverified)
52 mm
2.047244 in
212 kN224 kN4300 rpm3800 rpm17.5 kg17500 g
SKF6234 M/HC5C4Hybrid ceramic deep groove ball bearing
Recorded bore (d)
170 mm
6.692913 in
Recorded outside dimension (D)
310 mm
12.204724 in
Catalogue width (symbol unverified)
52 mm
2.047244 in
212 kN224 kN5000 rpm3800 rpm16.3 kg16300 g
FAG6234-MDeep groove ball bearing
Bore diameter (d)
170 mm
6.692913 in
Outside diameter (D)
310 mm
12.204724 in
Width (B)
52 mm
2.047244 in
225 kN224 kN2950 rpm3800 rpm18.096 kg18096 g
FAG6234-M-C3Deep groove ball bearing
Bore diameter (d)
170 mm
6.692913 in
Outside diameter (D)
310 mm
12.204724 in
Width (B)
52 mm
2.047244 in
225 kN224 kN2950 rpm3800 rpm18.096 kg18096 g
FAG6234-M-C4Deep groove ball bearing
Bore diameter (d)
170 mm
6.692913 in
Outside diameter (D)
310 mm
12.204724 in
Width (B)
52 mm
2.047244 in
225 kN224 kN2950 rpm3800 rpm18.096 kg18096 g
FAG6234-M-J20AADeep groove ball bearing
Bore diameter (d)
170 mm
6.692913 in
Outside diameter (D)
310 mm
12.204724 in
Width (B)
52 mm
2.047244 in
225 kN224 kN2950 rpm3800 rpm18.096 kg18096 g
FAG6234-M-J20AA-C3Deep groove ball bearing
Bore diameter (d)
170 mm
6.692913 in
Outside diameter (D)
310 mm
12.204724 in
Width (B)
52 mm
2.047244 in
225 kN224 kN2950 rpm3800 rpm18 kg18000 g
FAG6234-M-J20AA-C4Deep groove ball bearing
Bore diameter (d)
170 mm
6.692913 in
Outside diameter (D)
310 mm
12.204724 in
Width (B)
52 mm
2.047244 in
225 kN224 kN2950 rpm3800 rpm18 kg18000 g
TIMKEN6234-C3Deep groove ball bearing
Recorded bore (d)
170 mm
6.692913 in
Recorded outside dimension (D)
310 mm
12.204724 in
Catalogue width (symbol unverified)
52 mm
2.047244 in
212 kN224 kN——14.5 kg14500 g
TIMKEN6234MDeep groove ball bearing
Recorded bore (d)
170 mm
6.692913 in
Recorded outside dimension (D)
310 mm
12.204724 in
Catalogue width (symbol unverified)
52 mm
2.047244 in
212 kN224 kN——19.14 kg19140 g
TIMKEN6234M-C3Deep groove ball bearing
Recorded bore (d)
170 mm
6.692913 in
Recorded outside dimension (D)
310 mm
12.204724 in
Catalogue width (symbol unverified)
52 mm
2.047244 in
212 kN224 kN——19.14 kg19140 g
NSK6234ZZSDeep groove ball bearing
Bore diameter (d)
170 mm
6.692913 in
Outside diameter (D)
310 mm
12.204724 in
Bearing width (B)
52 mm
2.047244 in
234 kN224 kN———
KOYO6234 ZZXDeep groove ball bearing
Bore diameter (d)
170 mm
6.692913 in
Outside diameter (D)
310 mm
12.204724 in
Width (B)
52 mm
2.047244 in
265 kN223 kN—1900 rpmLimiting Speeds(Grease Lub.): 1900 min-117.5 kg17500 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 / designationClosureOriginal precisionClearanceCageMaterialLubricant
SKF 6234WithoutNormalCNSheet metalBearing steelNone
TIMKEN 6234OpenNot recordedNot recordedSteel cageNot recordedNot recorded
NSK 6234OpenNot recordedNot recordedNot recordedNot recordedNot recorded
KOYO 6234OpenNot recordedNot recordedNot recordedNot recordedNot recorded
SKF 6234/C3WithoutNot recordedC3Sheet metalBearing steelNone
SKF 6234 MWithoutNormalCNMachined brassBearing steelNone
SKF 6234 M/C3WithoutNot recordedC3Machined brassBearing steelNone
SKF 6234 M/HC5C4WithoutNot recordedC4Machined brassHybrid (ceramic balls)None
FAG 6234-MWithout — Not sealedPN — Normal (ISO 492:2023)CN (Group N) — Normal internal clearanceM — Solid brass cage, rolling element guidedNot recordedWithout — Bearing not greased
FAG 6234-M-C3Without — Not sealedPN — Normal (ISO 492:2023)C3 (Group 3) — Internal clearance larger than CNM — Solid brass cage, rolling element guidedNot recordedWithout — Bearing not greased
FAG 6234-M-C4Without — Not sealedPN — Normal (ISO 492:2023)C4 (Group 4) — Internal clearance larger than C3M — Solid brass cage, rolling element guidedNot recordedWithout — Bearing not greased
FAG 6234-M-J20AAWithout — Not sealedPN — Normal (ISO 492:2023)CN (Group N) — Normal internal clearanceM — Solid brass cage, rolling element guidedNot recordedWithout — Bearing not greased
FAG 6234-M-J20AA-C3Without — Not sealedPN — Normal (ISO 492:2023)C3 (Group 3) — Internal clearance larger than CNM — Solid brass cage, rolling element guidedNot recordedWithout — Bearing not greased
FAG 6234-M-J20AA-C4Without — Not sealedPN — Normal (ISO 492:2023)C4 (Group 4) — Internal clearance larger than C3M — Solid brass cage, rolling element guidedNot recordedWithout — Bearing not greased
TIMKEN 6234-C3OpenNot recordedNot recordedSteel cageNot recordedNot recorded
TIMKEN 6234MOpenNot recordedNot recordedBrass cageNot recordedNot recorded
TIMKEN 6234M-C3OpenNot recordedNot recordedBrass cageNot recordedNot recorded
NSK 6234ZZSShielded ZZS catalogue typeNot recordedNot recordedNot recordedNot recordedNot recorded
KOYO 6234 ZZXShielded ZZNot recordedNot recordedNot recordedNot recordedNot 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.

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.

Check the drawing before substituting

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.

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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