NRT 325 B
Precision cylindrical roller bearing > YRT Bearing
NRT 325 B - Precision cylindrical roller bearing - YRT Bearing
| Product model | NRT 325 B |
|---|---|
| d | 325 mm |
| D | 450 mm |
| B | 20 mm |
| Limiting speed | 220 r/min |
| Height (H) | 60mm |
| Inner ring shoulder recess diameter, large shoulder (d1) | 415mm |
| Distance (H1) | 40mm |
| Inner ring (shaft/locating washer) bolt circle diameter (J) | 342mm |
| Outer ring (housing washer) bolt circle diameter (J1) | 430mm |
| Inner ring (shaft/locating washer) through hole (N) | 9.3mm |
| Inner ring (shaft washer) counterbore (N1) | 15mm |
| Outer ring (housing washer) through hole (N2) | 9.3mm |
| Inner ring (shaft washer) counterbore depth (a) | 8.2mm |
| Outer ring (housing washer) chamfer dimension (r1) | min.0.6mm |
| Chamfer dimension (r2) | min.0.6mm |
| Basic dynamic load rating, axial (C) | 153kN |
| Basic static load rating, axial (C0) | 1660kN |
| Speed, grease lubrication | 110r/min |
| Axial preload | 12kN |
| Axial relief force | 26kN |
| Friction moment (CRL) | 45Nm |
| Axial stiffness | 28.6kN/µm |
| Radial stiffness | 8.9kN/µm |
| Moment stiffness | 427kNm/mrad |
| Bearing weight | 25kg |
| Rotary table guide diameter | 700mm |
| Number of bolts | 33 |
| Angle between bolts | 180° |
| Number of threads | 3 |
| Angle between threads | 120° |
| Pitch circle (α) | 10° |
| Tightening torque (bolt class 10.9) | 34Nm |
Product Details
The NRT 325 B is part of the YRT 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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NRT 325 B / YRT Bearing / Precision cylindrical roller bearing