6804 bearing dimensions & suffix variants
Look up recorded dimensions for designations beginning with 6804. 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.
6804 dimensions and recorded technical data
The recorded 6804 base designation measures 20×32×7 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) |
|---|---|---|---|---|---|---|
| NSK6804Deep groove ball bearing |
| 4.4 kN | 2.47 kN | — | — | 0.017 kg17 g |
| KOYO6804Deep groove ball bearing |
| 5 kN | 2.45 kN | — | 21000 rpmLimiting Speeds(Grease Lub.): 21000 min-1Limiting Speeds(Oil Lub.): 25000 min-1 | 0.018 kg18 g |
| NACHI6804Deep groove ball bearing |
| 5.05 kN | 2.46 kN | — | — | 0.019 kg19 g |
| EZO6804Deep groove ball bearing |
| 4.02 kN | 2.46 kN | — | — | 0.0157 kg15.7 g |
| NSK6804DDDeep groove ball bearing |
| 4.4 kN | 2.47 kN | — | — | — |
| NSK6804VVDeep groove ball bearing |
| 4.4 kN | 2.47 kN | — | — | — |
| NSK6804ZZDeep groove ball bearing |
| 4.4 kN | 2.47 kN | — | — | — |
| KOYO6804 2RSDeep groove ball bearing |
| 5 kN | 2.45 kN | — | 12000 rpmLimiting Speeds(Grease Lub.): 12000 min-1 | 0.018 kg18 g |
| KOYO6804 2RUDeep groove ball bearing |
| 5 kN | 2.45 kN | — | 21000 rpmLimiting Speeds(Grease Lub.): 21000 min-1 | 0.018 kg18 g |
| KOYO6804NRDeep groove ball bearing |
| 5 kN | 2.45 kN | — | 21000 rpmLimiting Speeds(Grease Lub.): 21000 min-1Limiting Speeds(Oil Lub.): 25000 min-1 | 0.018 kg18 g |
| KOYO6804 ZZDeep groove ball bearing |
| 5 kN | 2.45 kN | — | 21000 rpmLimiting Speeds(Grease Lub.): 21000 min-1 | 0.018 kg18 g |
| NACHI6804-2NKEDeep groove ball bearing |
| 5.05 kN | 2.46 kN | — | — | — |
| NACHI6804-2NSEDeep groove ball bearing |
| 5.05 kN | 2.46 kN | — | — | — |
| NACHI6804NKEDeep groove ball bearing |
| 5.05 kN | 2.46 kN | — | — | — |
| NACHI6804NSEDeep groove ball bearing |
| 5.05 kN | 2.46 kN | — | — | — |
| NACHI6804ZEDeep groove ball bearing |
| 5.05 kN | 2.46 kN | — | — | — |
| NACHI6804ZZEDeep groove ball bearing |
| 5.05 kN | 2.46 kN | — | — | — |
| EZO6804ZZDeep groove ball bearing |
| 4.02 kN | 2.46 kN | — | — | 0.0171 kg17.1 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 |
|---|---|---|---|---|---|---|
| NSK 6804 | Open | Not recorded | Not recorded | Not recorded | Not recorded | Not recorded |
| KOYO 6804 | Open | Not recorded | Not recorded | Not recorded | Not recorded | Not recorded |
| NACHI 6804 | Open | Not recorded | Not recorded | Not recorded | Not recorded | Not recorded |
| EZO 6804 | Open (no closure suffix in this catalogue marking) | Not recorded | Not recorded | Not recorded | High-carbon chromium bearing steel | Not recorded |
| NSK 6804DD | Contact-sealed DD catalogue type | Not recorded | Not recorded | Not recorded | Not recorded | Not recorded |
| NSK 6804VV | Non-contact rubber seals on both sides | Not recorded | Not recorded | Not recorded | Not recorded | Not recorded |
| NSK 6804ZZ | Metal shields on both sides | Not recorded | Not recorded | Not recorded | Not recorded | Not recorded |
| KOYO 6804 2RS | Contact sealed | Not recorded | Not recorded | Not recorded | Not recorded | Not recorded |
| KOYO 6804 2RU | Non-contact sealed | Not recorded | Not recorded | Not recorded | Not recorded | Not recorded |
| KOYO 6804NR | Not recorded | Not recorded | Not recorded | Not recorded | Not recorded | Not recorded |
| KOYO 6804 ZZ | Shielded ZZ | Not recorded | Not recorded | Not recorded | Not recorded | Not recorded |
| NACHI 6804-2NKE | Two non-contact seals | Not recorded | Not recorded | Not recorded | Not recorded | Not recorded |
| NACHI 6804-2NSE | Two contact seals | Not recorded | Not recorded | Not recorded | Not recorded | Not recorded |
| NACHI 6804NKE | One non-contact seal | Not recorded | Not recorded | Not recorded | Not recorded | Not recorded |
| NACHI 6804NSE | One contact seal | Not recorded | Not recorded | Not recorded | Not recorded | Not recorded |
| NACHI 6804ZE | One shield | Not recorded | Not recorded | Not recorded | Not recorded | Not recorded |
| NACHI 6804ZZE | Two shields | Not recorded | Not recorded | Not recorded | Not recorded | Not recorded |
| EZO 6804ZZ | Two pressed-steel shields | Not recorded | Not recorded | Not recorded | High-carbon chromium bearing steel | 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.
6804
Deep groove ball bearing
View full technical record →NSK6804
Deep groove ball bearing
View full technical record →NACHI6804
Deep groove ball bearing
View full technical record →EZO6804
Deep groove ball bearing
View full technical record →NACHI6804-2NKE
Deep groove ball bearing
View full technical record →NACHI6804-2NSE
Deep groove ball bearing
View full technical record →KOYO6804 2RS
Deep groove ball bearing
View full technical record →KOYO6804 2RU
Deep groove ball bearing
View full technical record →NSK6804DD
Deep groove ball bearing
View full technical record →NACHI6804NKE
Deep groove ball bearing
View full technical record →KOYO6804NR
Deep groove ball bearing
View full technical record →NACHI6804NSE
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.