312979 D
Precision cylindrical roller bearing > Four row cylindrical roller bearing
312979 D - Precision cylindrical roller bearing - Four row cylindrical roller bearing
| Product model | 312979 D |
|---|---|
| d | 760 mm |
| D | 1080 mm |
| B | 6 mm mm |
| Total bearing width on inner ring (B) | 790mm |
| Total bearing width on outer ring (C) | 790mm |
| D1 | ≈974mm |
| Inner ring raceway diameter (F) | 846mm |
| Annular groove width (b) | 22.3mm |
| Lubrication hole diameter (outer ring) (K) | 12mm |
| Inner ring fillet radius/chamfer (r1,2) | min.7.5mm |
| Outer ring chamfer dimension (r3,4) | min.7.5mm |
| Fatigue load limit(Pu) | 4400kN |
| Calculation factor (kr) | 760 |
| Bearing weight | 2440kg |
Product Details
The 312979 D is part of the Four row cylindrical roller bearing series within our Precision cylindrical roller bearing range. It is engineered for high-performance industrial use and delivers reliable operation under demanding working conditions.
Typical applications include: machine tool spindles, rolling mills, gearboxes and industrial pumps. 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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312979 D / Four row cylindrical roller bearing / Precision cylindrical roller bearing