KOYO 6905 Bearing — Specifications, Dimensions & Cross-Reference
The KOYO 6905 is a deep groove ball bearing manufactured by KOYO. It belongs to the 6900 series and features dimensions of 25 × 42 × 9 mm (bore × OD × width). This bearing has a dynamic load rating of 5,850 N and a static load rating of 3,550 N, making it suitable for light-duty applications.
Technical Specifications
| Dimensions | |
|---|---|
| Bore Diameter (d) | 25 mm |
| Outside Diameter (D) | 42 mm |
| Width (B) | 9 mm |
| Weight | 0.033 kg |
| Performance | |
|---|---|
| Dynamic Load Rating (Cr) | 5,850 N |
| Static Load Rating (C₀r) | 3,550 N |
| Limiting Speed (Grease) | 15,000 rpm |
| Limiting Speed (Oil) | 21,000 rpm |
Brand Cross-Reference — 6905 Equivalents
The following bearings from other manufacturers are interchangeable with the KOYO 6905. All share identical dimensions (25×42×9mm) and comparable load ratings:
| Brand | Part Number | Dynamic Load (N) | Static Load (N) |
|---|---|---|---|
| KOYO | KOYO 6905 ✦ | 5,850 | 3,550 |
| NTN | NTN 6905 | 5,850 | 3,550 |
| NACHI | NACHI 6905 | 5,850 | 3,550 |
| FAG | FAG 6905 | 5,850 | 3,550 |
| Timken | Timken 6905 | 5,850 | 3,550 |
| NSK | NSK 6905 | 5,850 | 3,550 |
| NTN | NTN 6905 | 5,850 | 3,550 |
| SKF | SKF 6905 | 5,850 | 3,550 |
Available Variants
The KOYO 6905 base bearing is available in these configurations:
Frequently Asked Questions
What are the dimensions of the KOYO 6905?
The KOYO 6905 has a bore diameter of 25mm, outside diameter of 42mm, and width of 9mm. It weighs 0.033kg.
What is the load capacity of the KOYO 6905?
The dynamic load rating (Cr) is 5,850 N and the static load rating (C₀r) is 3,550 N. The maximum recommended speed is 15,000 rpm with grease lubrication or 21,000 rpm with oil lubrication.
What bearings are equivalent to KOYO 6905?
The 6905 is manufactured by multiple brands including SKF, NTN, NSK, FAG, Timken, KOYO, and NACHI. All versions share the same 25×42×9mm dimensions and are interchangeable in most applications. See the cross-reference table above for detailed comparisons.