QJ 1248 MA/344524
Precision ball bearing > QJ four point contact ball bearing
QJ 1248 MA/344524 - Precision ball bearing - QJ four point contact ball bearing
| Product model | QJ 1248 MA/344524 |
|---|---|
| d | 240 mm |
| D | 440 mm |
| B | 85 mm |
| Limiting speed | 2400 r/min |
| d1 | ≈316mm |
| D1 | ≈364mm |
| Distance from load point (a) | 340mm |
| Chamfer size of inner ring (r1,2) | min.4mm |
| da | min.258mm |
| Da | max.422mm |
| ra | max.3mm |
| Pu | 28kN |
| Calculation coefficient (A) | 9.01 |
| Calculation coefficient (e) | 1.34 |
| Calculation coefficient (X) | 0.54 |
| Y0 | 0.44 |
| Y1 | 0.47 |
| Y2 | 0.81 |
| Mass bearing | 61kg |
Product Details
The QJ 1248 MA/344524 is part of the QJ four point contact ball bearing series within our Precision ball bearing range. It is engineered for high-performance industrial use and delivers reliable operation under demanding working conditions.
Typical applications include: electric motors, pumps, gearboxes, agricultural machinery and automotive systems. For detailed dimensions and load ratings, please refer to the specification table above. Contact FIJ for bulk pricing, technical support or customized solutions.
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QJ 1248 MA/344524 / QJ four point contact ball bearing / Precision ball bearing