| d | 2mm | single row, stainless steel |
| D | 5mm | Deep groove ball bearings |
| c | 0,156kN | dynamic Basic load ratings |
| Co | 0,048kN static | static|Basic load ratings |
| Speed | 190000r/min | Limiting Speed ratings |
| Limit Speed | 95000r/min | Limiting Speed ratings |
| Bearing | W 638/2-2Z | Designations |
| Bearing: | W 638/2-2Z | Designations |
| Speed: | 190000r/min | Limiting Speed ratings |
| c: | 0,156kN | dynamic Basic load ratings |
| Co: | 0,048kN static | static|Basic load ratings |
| Pu: | 0,002kN | limit Fatigue |
| Limit Speed: | 95000r/min | Limiting Speed ratings |
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