| Part Number |
NRT 325 B |
| System of Measurement |
Metric |
| Roller Bearing Type |
Cylindrical |
| For Load Direction |
Combined |
| Bore Dia |
325 mm |
| Bore Dia Tolerance |
-0.023mm to 0 |
| Outer Dia |
450 mm |
| Outer Dia Tolerance |
-0.023mm to 0 |
| Width |
60 mm |
| Height Tolerance |
-0.40mm to 0 |
| Shoulder Diameter Inner Ring – Large Shoulder |
415 mm |
| Outer Ring (Housing Washer) Width |
20 mm |
| Distance |
40 mm |
| Inner Ring (Shaft/Locating Washer) Hole Pitch Circle Diameter |
342 mm |
| Outer Ring (Housing Washer) Hole Pitch Circle Diameter |
430 mm |
| Inner Ring (Shaft/Locating Washer) Through Hole |
9.3 mm |
| Inner Ring (Shaft Washer) Sinkhole |
15 mm |
| Outer Ring (Housing Washer) Through Hole |
9.3 mm |
| Inner Ring (Shaft Washer) Sinkhole Depth |
8.2 mm |
| Outer Ring (Housing Washer) Chamfer Dimension r1 (min.) |
0.6 mm |
| Chamfer Dimension r2 (min.) |
0.6 mm |
| Basic Dynamic Load Rating – Radial Direction |
134 kN |
| Basic Static Load Rating – Radial Direction |
450 kN |
| Basic Dynamic Load Rating – Axial Direction |
153 kN |
| Attainable Speed For Grease Lubrication |
110 r/min |
| Attainable Speed For Oil-Air Lubrication |
220 r/min |
| Axial Preload |
12 kN |
| Axial Unloading Force |
26 kN |
| Frictional Moment |
45 N·m |
| Axial Stiffness For Preload A (sets of two brgs back-to-back or face-to-face) |
28600000 kN/μm |
| Axial Stiffness For Preload B (sets of two brgs back-to-back or face-to-face) |
8900000 kN/μm |
| Moment Stiffness |
427 kN·m/mrad |
| Ring Material |
Chrome Steel |
| Roller Material |
Chrome Steel |
| Cage Material |
Brass |
| Lubrication |
Grease, Oil |
| Temperature Range |
-30° to 110 °C |
| RoHS |
Compliant |
| REACH |
Compliant |
| Weight |
25 kg |
