KOYO 6808 Bearing — Specifications, Dimensions & Cross-Reference
The KOYO 6808 is a deep groove ball bearing manufactured by KOYO. It belongs to the 6800 series and features dimensions of 40 × 52 × 7 mm (bore × OD × width). This bearing has a dynamic load rating of 3,280 N and a static load rating of 2,600 N, making it suitable for light-duty applications.
Technical Specifications
| Dimensions | |
|---|---|
| Bore Diameter (d) | 40 mm |
| Outside Diameter (D) | 52 mm |
| Width (B) | 7 mm |
| Weight | 0.028 kg |
| Performance | |
|---|---|
| Dynamic Load Rating (Cr) | 3,280 N |
| Static Load Rating (C₀r) | 2,600 N |
| Limiting Speed (Grease) | 13,000 rpm |
| Limiting Speed (Oil) | 18,000 rpm |
Brand Cross-Reference — 6808 Equivalents
The following bearings from other manufacturers are interchangeable with the KOYO 6808. All share identical dimensions (40×52×7mm) and comparable load ratings:
| Brand | Part Number | Dynamic Load (N) | Static Load (N) |
|---|---|---|---|
| KOYO | KOYO 6808 ✦ | 3,280 | 2,600 |
| Timken | Timken 6808 | 3,280 | 2,600 |
| SKF | SKF 6808 | 3,280 | 2,600 |
| NTN | NTN 6808 | 3,280 | 2,600 |
| NACHI | NACHI 6808 | 3,280 | 2,600 |
| FAG | FAG 6808 | 3,280 | 2,600 |
| Timken | Timken 6808 | 3,280 | 2,600 |
| NSK | NSK 6808 | 3,280 | 2,600 |
| NTN | NTN 6808 | 3,280 | 2,600 |
| SKF | SKF 6808 | 3,280 | 2,600 |
Available Variants
The KOYO 6808 base bearing is available in these configurations:
Frequently Asked Questions
What are the dimensions of the KOYO 6808?
The KOYO 6808 has a bore diameter of 40mm, outside diameter of 52mm, and width of 7mm. It weighs 0.028kg.
What is the load capacity of the KOYO 6808?
The dynamic load rating (Cr) is 3,280 N and the static load rating (C₀r) is 2,600 N. The maximum recommended speed is 13,000 rpm with grease lubrication or 18,000 rpm with oil lubrication.
What bearings are equivalent to KOYO 6808?
The 6808 is manufactured by multiple brands including SKF, NTN, NSK, FAG, Timken, KOYO, and NACHI. All versions share the same 40×52×7mm dimensions and are interchangeable in most applications. See the cross-reference table above for detailed comparisons.