QJF 312 MA
Precision ball bearing > QJF/Q four point contact ball bearing
QJF 312 MA - QJF/Q four point contact ball bearing - Precision ball bearing
| Product model | QJF 312 MA |
|---|---|
| d | 60 mm |
| D | 130 mm |
| B | 31 mm |
| Limiting speed | 9000 r/min |
| d1 | ≈77mm |
| D1 | ≈106mm |
| Distance from load point (a) | 67mm |
| Chamfer size of inner ring (r1,2) | min.2.1mm |
| da | min.72mm |
| Da | max.118mm |
| ra | max.2mm |
| Pu | 5.85kN |
| Calculation coefficient (A) | 0.055 |
| Calculation coefficient (e) | 0.95 |
| Calculation coefficient (X) | 0.6 |
| Y0 | 0.58 |
| Y1 | 0.66 |
| Y2 | 1.07 |
| Mass bearing | 2.15kg |
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QJF 312 MA / QJF/Q four point contact ball bearing / Precision ball bearing