| Name | Value |
|---|---|
| Bearing number | W 638/2 XR-2Z |
| Size (mm) | 2x5x2,5 |
| Brand | MBY |
| Bore Diameter (mm) | 2 |
| Outer Diameter (mm) | 5 |
| Width (mm) | 2,5 |
| Name | Value |
|---|---|
| d | 2 mm |
| D | 5 mm |
| B | 2.5 mm |
| d1 | - 2.7 mm |
| D2 | - 4.4 mm |
| D3 | 6.2 mm |
| C | 0.6 mm |
| r1,2 | min. - 0.1 mm |
| da | min. - 2.6 mm |
| ra | max. - 0.1 mm |
| Basic dynamic load rating | C - 0.094 kN |
| Basic static load rating | C0 - 0.025 kN |
| Fatigue load limit | Pu - 0.001 kN |
| Reference speed | 200000 r/min |
| Limiting speed | 100000 r/min |
| Calculation factor | kr - 0.02 |
| Calculation factor | f0 - 6.5 |
| Mass bearing | 0.00025 kg |
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