QJ 304 N2MA
Precision ball bearing > QJ four point contact ball bearing
QJ 304 N2MA - QJ four point contact ball bearing - Precision ball bearing
| Product model | QJ 304 N2MA |
|---|---|
| d | 20 mm |
| D | 52 mm |
| B | 15 mm |
| Limiting speed | 24000 r/min |
| d1 | ≈27.5mm |
| D1 | ≈40.8mm |
| Distance from load point (a) | 25mm |
| h | 3.5mm |
| b | 4.5mm |
| Fillet radius of locating groove (r0) | 0.5mm |
| Chamfer size of inner ring (r1,2) | min.1.1mm |
| da | min.27mm |
| Da | max.45mm |
| ra | max.1mm |
| Pu | 0.93kN |
| Calculation coefficient (A) | 0.00143 |
| Calculation coefficient (e) | 0.95 |
| Calculation coefficient (X) | 0.6 |
| Y0 | 0.58 |
| Y1 | 0.66 |
| Y2 | 1.07 |
| Mass bearing | 0.18kg |
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QJ 304 N2MA / QJ four point contact ball bearing / Precision ball bearing