6238 bearing dimensions & suffix variants
Look up recorded dimensions for designations beginning with 6238. 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.
6238 — 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.
| Full catalogue model | d×D×B (mm) | d×D×B (in) | Closed width / execution scope |
|---|---|---|---|
| PEER · 6200 series6238 | 190× | 7.4803× | Base 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.
| Model | Dynamic Cr / static Cor | Open: oil / grease | Evidence boundary |
|---|---|---|---|
| 6238 | 255000 / 282000 N | 2100 / 1800 r/min | Base-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.
6238 dimensions and recorded technical data
The recorded 6238 base designation measures 190×340×55 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. 16 recorded variants are listed. A dash means the value is missing, not zero.
Read the original dimensions for 6238
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 6238 — 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 | 190 mm |
| Deviation limits of mid-range bore diameter | t Δdmp | -0.03 to 0 mm |
| Outside diameter | D | 340 mm |
| Deviation limits of mid-range outside diameter | t ΔDmp | -0.04 to 0 mm |
| Width | B | 55 mm |
| Deviation limits of ring width | t ΔBs | -0.3 to 0 mm |
| Shoulder diameter | d 1 | ≈ 239.5 mm |
| Shoulder diameter | D 1 | ≈ 289.75 mm |
| Chamfer dimension | r 1,2 | min. 4 mm |
Mounting limits and abutments
| Measurement | Source symbol | Recorded value |
|---|---|---|
| Diameter of shaft abutment | d a | min. 207 mm |
| Diameter of housing abutment | D a | max. 323 mm |
| Radius of shaft or housing fillet | r a | max. 3 mm |
KOYO 6238 — 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 | 190 mm |
| Outside diameter | D | 340 mm |
| Width | B | 55 mm |
TIMKEN 6238 — 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 | 190 mm |
| O.D. (D) | D | 340 mm / 13.386 in |
| Width (B) | B | 55 mm / 2.165 in |
Mounting limits and abutments
| Measurement | Source symbol | Recorded value |
|---|---|---|
| Max Shaft Fillet Radius | Not supplied separately | 4 mm / 0.158 in |
No recorded variant matches these filters. Clear a filter to see other records; no substitute has been inferred.
| Brand / full designation | Named dimensions (mm / in) | Dynamic C (kN) | Static C0 (kN) | Reference speed (rpm) | Limiting speed (rpm) | Mass (kg / g) |
|---|---|---|---|---|---|---|
| SKF6238Deep groove ball bearing |
| 255 kN | 280 kN | 3800 rpm | 2400 rpm | 19.5 kg19500 g |
| TIMKEN6238Deep groove ball bearing |
| 255 kN | 282 kN | — | — | 18.2 kg18200 g |
| NSK6238Deep groove ball bearing |
| 280 kN | 282 kN | — | — | 22.3 kg22300 g |
| KOYO6238Deep groove ball bearing |
| 319 kN | 281 kN | — | 1700 rpmLimiting Speeds(Grease Lub.): 1700 min-1Limiting Speeds(Oil Lub.): 2000 min-1 | 23 kg23000 g |
| SKF6238/C3Deep groove ball bearing |
| 255 kN | 280 kN | 3800 rpm | 2400 rpm | 19.5 kg19500 g |
| SKF6238 MDeep groove ball bearing |
| 255 kN | 280 kN | 3800 rpm | 3400 rpm | 21.8 kg21800 g |
| SKF6238 M/C3Deep groove ball bearing |
| 255 kN | 280 kN | 3800 rpm | 3400 rpm | 21.8 kg21800 g |
| FAG6238-MDeep groove ball bearing |
| 255 kN | 280 kN | 2600 rpm | 3350 rpm | 22.295 kg22295 g |
| FAG6238-M-C3Deep groove ball bearing |
| 255 kN | 280 kN | 2600 rpm | 3350 rpm | 22.295 kg22295 g |
| FAG6238-M-C4Deep groove ball bearing |
| 255 kN | 280 kN | 2600 rpm | 3350 rpm | 22.295 kg22295 g |
| FAG6238-M-J20CDeep groove ball bearing |
| 255 kN | 280 kN | 2600 rpm | 3350 rpm | 22.3 kg22300 g |
| FAG6238-M-J20C-C3Deep groove ball bearing |
| 255 kN | 280 kN | 2600 rpm | 3350 rpm | 22.3 kg22300 g |
| TIMKEN6238-C3Deep groove ball bearing |
| 255 kN | 282 kN | — | — | 18.2 kg18200 g |
| TIMKEN6238MDeep groove ball bearing |
| 255 kN | 282 kN | — | — | 23.6 kg23600 g |
| TIMKEN6238M-C3Deep groove ball bearing |
| 255 kN | 282 kN | — | — | 23.6 kg23600 g |
| NSK6238ZZSDeep groove ball bearing |
| 280 kN | 282 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 6238 | Without | Normal | CN | Sheet metal | Bearing steel | None |
| TIMKEN 6238 | Open | Not recorded | Not recorded | Steel cage | Not recorded | Not recorded |
| NSK 6238 | Open | Not recorded | Not recorded | Not recorded | Not recorded | Not recorded |
| KOYO 6238 | Open | Not recorded | Not recorded | Not recorded | Not recorded | Not recorded |
| SKF 6238/C3 | Without | Not recorded | C3 | Sheet metal | Bearing steel | None |
| SKF 6238 M | Without | Normal | CN | Machined brass | Bearing steel | None |
| SKF 6238 M/C3 | Without | Not recorded | C3 | Machined brass | Bearing steel | None |
| FAG 6238-M | 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 6238-M-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 6238-M-C4 | Without — Not sealed | PN — Normal (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 6238-M-J20C | 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 6238-M-J20C-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 |
| TIMKEN 6238-C3 | Open | Not recorded | Not recorded | Steel cage | Not recorded | Not recorded |
| TIMKEN 6238M | Open | Not recorded | Not recorded | Brass cage | Not recorded | Not recorded |
| TIMKEN 6238M-C3 | Open | Not recorded | Not recorded | Brass cage | Not recorded | Not recorded |
| NSK 6238ZZS | Shielded ZZS catalogue type | 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.
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.
6238
Deep groove ball bearing
View full technical record →TIMKEN6238
Deep groove ball bearing
View full technical record →KOYO6238
Deep groove ball bearing
View full technical record →NSK6238
Deep groove ball bearing
View full technical record →SKF6238/C3
Deep groove ball bearing
View full technical record →TIMKEN6238-C3
Deep groove ball bearing
View full technical record →SKF6238 M
Deep groove ball bearing
View full technical record →FAG6238-M
Deep groove ball bearing
View full technical record →TIMKEN6238M
Deep groove ball bearing
View full technical record →SKF6238 M/C3
Deep groove ball bearing
View full technical record →FAG6238-M-C3
Deep groove ball bearing
View full technical record →TIMKEN6238M-C3
Deep groove ball bearing
View full technical record →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.