QJF 312 MA
Precision ball bearing > QJF/Q four point contact ball bearing
QJF 312 MA - Precision ball bearing - QJF/Q four point contact 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 |
Product Details
The QJF 312 MA is part of the QJF/Q 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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QJF 312 MA / QJF/Q four point contact ball bearing / Precision ball bearing