NJ 311 ECJ
Precision cylindrical roller bearing > Single row cylindrical roller bearing
NJ 311 ECJ - Single row cylindrical roller bearing - Precision cylindrical roller bearing
| Product model | NJ 311 ECJ |
|---|---|
| d | 55 mm |
| D | 120 mm |
| B | 29 mm |
| Limiting speed | 7000 r/min |
| Reference speed | 6000 r/min |
| d1 | ≈77.5mm |
| D1 | ≈100.3mm |
| F | 70.5mm |
| r1,2 | min.2mm |
| Chamfer dimension (r3,4) | min.2mm |
| Allowable axial displacement (s) | max.2mm |
| da | max.68mm |
| db | min.80mm |
| Da | max.109.2mm |
| ra | max.2mm |
| Fatigue load limit(Pu) | 18.6kN |
| Minimum load factor(kr) | 0.15 |
| Limit value (e) | 0.2 |
| Axial load factor (Y) | 0.6 |
| Weight | 1.53kg |
Product Details
The NJ 311 ECJ is part of the Single 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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NJ 311 ECJ / Single row cylindrical roller bearing / Precision cylindrical roller bearing