311 NR
Precision ball bearing > Deep groove ball bearing
311 NR - Deep groove ball bearing - Precision ball bearing
| Product model | 311 NR |
|---|---|
| d | 55 mm |
| D | 120 mm |
| B | 29 mm |
| Limiting speed | 6300 r/min |
| Reference speed | 10000r/min r/min |
| d1 | 75.34mm |
| D2 | 103.7mm |
| Chamfer Dimension(r1,2) | 2mm |
| Shaft shoulder diameter(da)min | 66mm |
| Diameter of bearing seat shoulder(Da) | 109mm |
| Chamfer radius of shaft or bearing seat(ra) | 2mm |
| Fatigue load limit | 2.85kN |
| Minimum load factor(kr) | 0.05 |
| Mass bearing | 1.5kg |
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311 NR / Deep groove ball bearing / Precision ball bearing