W 638
Precision ball bearing > Deep groove ball bearing
W 638 - Deep groove ball bearing - Precision ball bearing
| Product model | W 638 |
|---|---|
| d | 8 mm |
| D | 28 mm |
| B | 9 mm |
| Limiting speed | 40000 r/min |
| Reference speed | 67000r/min r/min |
| d2 | 13.9mm |
| D2 | 22.38mm |
| Chamfer Dimension(r1,2) | 0.3mm |
| Shaft shoulder diameter(da)min | 10mm |
| Diameter of bearing seat shoulder(Da) | 26mm |
| Chamfer radius of shaft or bearing seat(ra) | 0.3mm |
| Fatigue load limit | 0.083kN |
| Minimum load factor(kr) | 0.035 |
| Calculation coefficient(f0) | 12.4 |
| Mass bearing | 0.027kg |
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W 638 / Deep groove ball bearing / Precision ball bearing