QJ 248 N2MA
Precision ball bearing > QJ four point contact ball bearing
QJ 248 N2MA - QJ four point contact ball bearing - Precision ball bearing
| Product model | QJ 248 N2MA |
|---|---|
| d | 240 mm |
| D | 440 mm |
| B | 72 mm |
| Limiting speed | 2400 r/min |
| d1 | ≈315mm |
| D1 | ≈365mm |
| Distance from load point (a) | 238mm |
| h | 12.5mm |
| b | 15mm |
| Fillet radius of locating groove (r0) | 2.5mm |
| Chamfer size of inner ring (r1,2) | min.4mm |
| da | min.258mm |
| Da | max.422mm |
| ra | max.3mm |
| Pu | 27.5kN |
| Calculation coefficient (A) | 4.27 |
| Calculation coefficient (e) | 0.95 |
| Calculation coefficient (X) | 0.6 |
| Y0 | 0.58 |
| Y1 | 0.66 |
| Y2 | 1.07 |
| Mass bearing | 53.2kg |
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QJ 248 N2MA / QJ four point contact ball bearing / Precision ball bearing