6808 bearing dimensions & suffix variants
Look up recorded dimensions for designations beginning with 6808. 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.
6808 dimensions and recorded technical data
The recorded 6808 base designation measures 40×52×7 mm (inside diameter d × outside diameter D × width B). This answer uses unsuffixed records from NSK, KOYO, NACHI, EZO. 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. 18 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) |
|---|---|---|---|---|---|---|
| NSK6808Deep groove ball bearing |
| 7 kN | 5.55 kN | — | — | 0.031 kg31 g |
| KOYO6808Deep groove ball bearing |
| 6.15 kN | 4.2 kN | — | 12000 rpmLimiting Speeds(Grease Lub.): 12000 min-1Limiting Speeds(Oil Lub.): 14000 min-1 | 0.033 kg33 g |
| NACHI6808Deep groove ball bearing |
| 6.2 kN | 4.15 kN | — | — | 0.033 kg33 g |
| EZO6808Deep groove ball bearing |
| 4.93 kN | 4.18 kN | — | — | 0.0289 kg28.9 g |
| NSK6808DDDeep groove ball bearing |
| 7 kN | 5.55 kN | — | — | — |
| NSK6808VVDeep groove ball bearing |
| 7 kN | 5.55 kN | — | — | — |
| NSK6808ZZDeep groove ball bearing |
| 7 kN | 5.55 kN | — | — | — |
| KOYO6808 2RDDeep groove ball bearing |
| 6.15 kN | 4.2 kN | — | 11000 rpmLimiting Speeds(Grease Lub.): 11000 min-1 | 0.033 kg33 g |
| KOYO6808 2RSDeep groove ball bearing |
| 6.15 kN | 4.2 kN | — | 6700 rpmLimiting Speeds(Grease Lub.): 6700 min-1 | 0.033 kg33 g |
| KOYO6808 2RUDeep groove ball bearing |
| 6.15 kN | 4.2 kN | — | 12000 rpmLimiting Speeds(Grease Lub.): 12000 min-1 | 0.033 kg33 g |
| KOYO6808NRDeep groove ball bearing |
| 6.15 kN | 4.2 kN | — | 12000 rpmLimiting Speeds(Grease Lub.): 12000 min-1Limiting Speeds(Oil Lub.): 14000 min-1 | 0.033 kg33 g |
| KOYO6808 ZZDeep groove ball bearing |
| 6.15 kN | 4.2 kN | — | 12000 rpmLimiting Speeds(Grease Lub.): 12000 min-1 | 0.033 kg33 g |
| NACHI6808-2NKEDeep groove ball bearing |
| 6.2 kN | 4.15 kN | — | — | — |
| NACHI6808-2NSEDeep groove ball bearing |
| 6.2 kN | 4.15 kN | — | — | — |
| NACHI6808NKEDeep groove ball bearing |
| 6.2 kN | 4.15 kN | — | — | — |
| NACHI6808NSEDeep groove ball bearing |
| 6.2 kN | 4.15 kN | — | — | — |
| NACHI6808ZEDeep groove ball bearing |
| 6.2 kN | 4.15 kN | — | — | — |
| NACHI6808ZZEDeep groove ball bearing |
| 6.2 kN | 4.15 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 |
|---|---|---|---|---|---|---|
| NSK 6808 | Open | Not recorded | Not recorded | Not recorded | Not recorded | Not recorded |
| KOYO 6808 | Open | Not recorded | Not recorded | Not recorded | Not recorded | Not recorded |
| NACHI 6808 | Open | Not recorded | Not recorded | Not recorded | Not recorded | Not recorded |
| EZO 6808 | Open (no closure suffix in this catalogue marking) | Not recorded | Not recorded | Not recorded | High-carbon chromium bearing steel | Not recorded |
| NSK 6808DD | Contact-sealed DD catalogue type | Not recorded | Not recorded | Not recorded | Not recorded | Not recorded |
| NSK 6808VV | Non-contact rubber seals on both sides | Not recorded | Not recorded | Not recorded | Not recorded | Not recorded |
| NSK 6808ZZ | Metal shields on both sides | Not recorded | Not recorded | Not recorded | Not recorded | Not recorded |
| KOYO 6808 2RD | Extremely light contact sealed | Not recorded | Not recorded | Not recorded | Not recorded | Not recorded |
| KOYO 6808 2RS | Contact sealed | Not recorded | Not recorded | Not recorded | Not recorded | Not recorded |
| KOYO 6808 2RU | Non-contact sealed | Not recorded | Not recorded | Not recorded | Not recorded | Not recorded |
| KOYO 6808NR | Not recorded | Not recorded | Not recorded | Not recorded | Not recorded | Not recorded |
| KOYO 6808 ZZ | Shielded ZZ | Not recorded | Not recorded | Not recorded | Not recorded | Not recorded |
| NACHI 6808-2NKE | Two non-contact seals | Not recorded | Not recorded | Not recorded | Not recorded | Not recorded |
| NACHI 6808-2NSE | Two contact seals | Not recorded | Not recorded | Not recorded | Not recorded | Not recorded |
| NACHI 6808NKE | One non-contact seal | Not recorded | Not recorded | Not recorded | Not recorded | Not recorded |
| NACHI 6808NSE | One contact seal | Not recorded | Not recorded | Not recorded | Not recorded | Not recorded |
| NACHI 6808ZE | One shield | Not recorded | Not recorded | Not recorded | Not recorded | Not recorded |
| NACHI 6808ZZE | 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.
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.
6808
Deep groove ball bearing
View full technical record →NSK6808
Deep groove ball bearing
View full technical record →NACHI6808
Deep groove ball bearing
View full technical record →EZO6808
Deep groove ball bearing
View full technical record →NACHI6808-2NKE
Deep groove ball bearing
View full technical record →NACHI6808-2NSE
Deep groove ball bearing
View full technical record →KOYO6808 2RD
Deep groove ball bearing
View full technical record →KOYO6808 2RS
Deep groove ball bearing
View full technical record →KOYO6808 2RU
Deep groove ball bearing
View full technical record →NSK6808DD
Deep groove ball bearing
View full technical record →NACHI6808NKE
Deep groove ball bearing
View full technical record →KOYO6808NR
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.