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21308 bearing dimensions & suffix variants
Look up recorded dimensions for designations beginning with 21308. 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.
21308 dimensions and recorded technical data
Use the named dimensions for each complete record below. A generic d×D×B answer is not asserted where the base record is missing, dimension symbols are unverified, or the product uses a different geometry such as a housing or thrust assembly. Suffix records are not substituted for a missing base specification.
The numeric series boundary is preserved: a longer number is not included merely because its first digits match. 26 recorded variants are listed. A dash means the value is missing, not zero.
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) |
|---|---|---|---|---|---|---|
| SKF21308 ESpherical roller bearing with relubrication features |
| 107 kN | 108 kN | 7000 rpm | 9500 rpm | 0.738 kg738 g |
| SKF21308 E/C3Spherical roller bearing with relubrication features |
| 107 kN | 108 kN | 7000 rpm | 9500 rpm | 0.738 kg738 g |
| SKF21308 EKWSpherical roller bearing with tapered bore |
| 107 kN | 108 kN | 7000 rpm | 9500 rpm | 0.738 kg738 g |
| SKF21308 EWSpherical roller bearing |
| 107 kN | 108 kN | 7000 rpm | 9500 rpm | 0.748 kg748 g |
| SKF21308 EW/C3Spherical roller bearing |
| 107 kN | 108 kN | 7000 rpm | 9500 rpm | 0.748 kg748 g |
| FAG21308-E1-XLSpherical Roller Bearing |
| 109 kN | 107 kN | 5200 rpm | 9800 rpm | 0.722 kg722 g |
| FAG21308-E1-XL-C3Spherical Roller Bearing |
| 109 kN | 107 kN | 5200 rpm | 9800 rpm | 0.722 kg722 g |
| FAG21308-E1-XL-H40Spherical Roller Bearing |
| 109 kN | 107 kN | 5200 rpm | 9800 rpm | 0.75 kg750 g |
| FAG21308-E1-XL-KSpherical Roller Bearing |
| 109 kN | 107 kN | 5200 rpm | 9800 rpm | 0.713 kg713 g |
| FAG21308-E1-XL-K-C3Spherical Roller Bearing |
| 109 kN | 107 kN | 5200 rpm | 9800 rpm | 0.713 kg713 g |
| FAG21308-E1-XL-K-TVPBSpherical Roller Bearing |
| 109 kN | 107 kN | 5200 rpm | 9800 rpm | 0.671 kg671 g |
| FAG21308-E1-XL-K-TVPB-C3Spherical Roller Bearing |
| 109 kN | 107 kN | 5200 rpm | 9800 rpm | 0.671 kg671 g |
| FAG21308-E1-XL-TVPBSpherical Roller Bearing |
| 109 kN | 107 kN | 5200 rpm | 9800 rpm | 0.68 kg680 g |
| FAG21308-E1-XL-TVPB-C3Spherical Roller Bearing |
| 109 kN | 107 kN | 5200 rpm | 9800 rpm | 0.68 kg680 g |
| TIMKEN21308EJ2NW33Spherical roller bearing |
| 113 kN | 102 kN | — | — | 0.68 kg680 g |
| TIMKEN21308EJW33Spherical roller bearing |
| 113 kN | 102 kN | — | — | 0.7 kg700 g |
| TIMKEN21308EJW33C2Spherical roller bearing |
| 113 kN | 102 kN | — | — | 0.7 kg700 g |
| TIMKEN21308EJW33C3Spherical roller bearing |
| 113 kN | 102 kN | — | — | 0.7 kg700 g |
| TIMKEN21308EJW33C4Spherical roller bearing |
| 113 kN | 102 kN | — | — | 0.7 kg700 g |
| TIMKEN21308KEJW33Spherical roller bearing |
| 113 kN | 102 kN | — | — | 0.69 kg690 g |
| TIMKEN21308KEJW33C3Spherical roller bearing |
| 113 kN | 102 kN | — | — | 0.69 kg690 g |
| NSK21308EAE4Spherical roller bearing |
| 118 kN | 111 kN | — | — | 0.73 kg730 g |
| NSK21308EAKE4Spherical roller bearing |
| 118 kN | 111 kN | — | — | — |
| KOYO21308RZSpherical roller bearing |
| 105 kN | 95.5 kN | — | 5600 rpmLimiting Speeds(Grease Lub.): 5600 min-1Limiting Speeds(Oil Lub.): 7600 min-1 | 0.781 kg781 g |
| KOYO21308RZK+AH308Spherical roller bearing |
| 105 kN | 95.5 kN | — | 5600 rpmLimiting Speeds(Grease Lub.): 5600 min-1Limiting Speeds(Oil Lub.): 7600 min-1 | 0.86 kg860 g |
| KOYO21308RZK+H308XSpherical roller bearing |
| 105 kN | 95.5 kN | — | 5600 rpmLimiting Speeds(Grease Lub.): 5600 min-1Limiting Speeds(Oil Lub.): 7600 min-1 | 0.972 kg972 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 |
|---|---|---|---|---|---|---|
| SKF 21308 E | Without | Normal | CN | Sheet metal | Not recorded | None |
| SKF 21308 E/C3 | Without | Not recorded | C3 | Sheet metal | Not recorded | None |
| SKF 21308 EKW | Without | Normal | CN | Sheet metal | Not recorded | None |
| SKF 21308 EW | Without | Not recorded | CN | Sheet metal | Not recorded | None |
| SKF 21308 EW/C3 | Without | Not recorded | C3 | Sheet metal | Not recorded | None |
| FAG 21308-E1-XL | Not recorded | Not recorded | CN (Group N) — Normal internal clearance | JPA — Sheet metal cage | Not recorded | Not recorded |
| FAG 21308-E1-XL-C3 | Not recorded | Not recorded | C3 (Group 3) — Internal clearance larger than CN | JPA — Sheet metal cage | Not recorded | Not recorded |
| FAG 21308-E1-XL-H40 | Not recorded | Not recorded | CN (Group N) — Normal internal clearance | JPA — Sheet metal cage | Not recorded | Not recorded |
| FAG 21308-E1-XL-K | Not recorded | Not recorded | CN (Group N) — Normal internal clearance | JPA — Sheet metal cage | Not recorded | Not recorded |
| FAG 21308-E1-XL-K-C3 | Not recorded | Not recorded | C3 (Group 3) — Internal clearance larger than CN | JPA — Sheet metal cage | Not recorded | Not recorded |
| FAG 21308-E1-XL-K-TVPB | Not recorded | Not recorded | CN (Group N) — Normal internal clearance | TVPB — Plastic cage | Not recorded | Not recorded |
| FAG 21308-E1-XL-K-TVPB-C3 | Not recorded | Not recorded | C3 (Group 3) — Internal clearance larger than CN | TVPB — Plastic cage | Not recorded | Not recorded |
| FAG 21308-E1-XL-TVPB | Not recorded | Not recorded | CN (Group N) — Normal internal clearance | TVPB — Plastic cage | Not recorded | Not recorded |
| FAG 21308-E1-XL-TVPB-C3 | Not recorded | Not recorded | C3 (Group 3) — Internal clearance larger than CN | TVPB — Plastic cage | Not recorded | Not recorded |
| TIMKEN 21308EJ2NW33 | Open | Not recorded | Not recorded | Steel cage | Not recorded | Not recorded |
| TIMKEN 21308EJW33 | Open | Not recorded | Not recorded | Steel cage | Not recorded | Not recorded |
| TIMKEN 21308EJW33C2 | Open | Not recorded | Not recorded | Steel cage | Not recorded | Not recorded |
| TIMKEN 21308EJW33C3 | Open | Not recorded | Not recorded | Steel cage | Not recorded | Not recorded |
| TIMKEN 21308EJW33C4 | Open | Not recorded | Not recorded | Steel cage | Not recorded | Not recorded |
| TIMKEN 21308KEJW33 | Open | Not recorded | Not recorded | Steel cage | Not recorded | Not recorded |
| TIMKEN 21308KEJW33C3 | Open | Not recorded | Not recorded | Steel cage | Not recorded | Not recorded |
| NSK 21308EAE4 | Not recorded | Not recorded | CN | Pressed steel | Not recorded | Not recorded |
| NSK 21308EAKE4 | Not recorded | Not recorded | CN | Pressed steel | Not recorded | Not recorded |
| KOYO 21308RZ | Not recorded | Not recorded | Not recorded | Not recorded | Not recorded | Not recorded |
| KOYO 21308RZK+AH308 | Not recorded | Not recorded | Not recorded | Not recorded | Not recorded | Not recorded |
| KOYO 21308RZK+H308X | 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.
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.
SKF
21308 E
Spherical roller bearing with relubrication features
View full technical record →FAG21308-E1-XL
Spherical Roller Bearing
View full technical record →FAG21308-E1-XL-C3
Spherical Roller Bearing
View full technical record →FAG21308-E1-XL-H40
Spherical Roller Bearing
View full technical record →FAG21308-E1-XL-K
Spherical Roller Bearing
View full technical record →FAG21308-E1-XL-K-C3
Spherical Roller Bearing
View full technical record →FAG21308-E1-XL-K-TVPB
Spherical Roller Bearing
View full technical record →FAG21308-E1-XL-K-TVPB-C3
Spherical Roller Bearing
View full technical record →FAG21308-E1-XL-TVPB
Spherical Roller Bearing
View full technical record →FAG21308-E1-XL-TVPB-C3
Spherical Roller Bearing
View full technical record →NSK21308EAE4
Spherical roller bearing
View full technical record →NSK21308EAKE4
Spherical roller 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.