| Name | Value |
|---|---|
| Bearing number | W 638/4 R-2Z |
| Size (mm) | 4x9x4 |
| Brand | MBY |
| Bore Diameter (mm) | 4 |
| Outer Diameter (mm) | 9 |
| Width (mm) | 4 |
| Name | Value |
|---|---|
| d | 4 mm |
| D | 9 mm |
| B | 4 mm |
| C | 4 mm |
| C | 1 mm |
| D3 | 10,3 mm |
| Weight | 0,0011 Kg |
| Basic dynamic load rating (C) | 0,364 kN |
| Basic static load rating (C0) | 0,114 kN |
| Fatigue load limit (Pu) | 0,005 |
| Reference speed | 140 000 r/min |
| Limiting speed | 70 000 r/min |
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