Description
Dimensions
| d | 150 mm | Bore diameter |
|---|---|---|
| D | 270 mm | Outside diameter |
| B | 45 mm | Width |
| D1 | ≈ 232.35 mm | Shoulder diameter of outer ring |
| F | 182 mm | Raceway diameter of inner ring |
| r1,2 | min. 3 mm | Chamfer dimension |
| r3,4 | min. 3 mm | Chamfer dimension |
| s | max. 2.5 mm | Permissible axial displacement |
Abutment dimensions
| da | min. 164 mm | Diameter of spacer sleeve |
|---|---|---|
| da | max. 178 mm | Diameter of spacer sleeve |
| db | min. 186 mm | Diameter of shaft abutment |
| Da | max. 254.6 mm | Diameter of housing abutment |
| ra | max. 2.5 mm | Radius of fillet |
| rb | max. 2.5 mm | Radius of fillet |
Calculation data
| NR performance class | NR Explorer | |
| Basic dynamic load rating | C | 510 kN |
| Basic static load rating | C0 | 600 kN |
| Fatigue load limit | Pu | 64 kN |
| Reference speed | 2 600 r/min | |
| Limiting speed | 2 800 r/min | |
| Minimum load factor | kr | 0.15 |
| Limiting value | e | 0.2 |
| Calculation factor | Y | 0.6 |
Associated products
| Angle ring | HJ 230 EC |
Tolerances and clearances
General bearing specifications
- Tolerances: Normal (), P6, Normal (inch)
- Radial internal clearance: cylindrical bore, tapered bore
- Axial internal clearance: NUP, NJ + HJ
Bearing interfaces
- Seat tolerances for standard conditions
- Tolerances and resultant fit
Single row cylindrical roller bearings are designed to accommodate high radial loads in combination with high speeds. Having two integral flanges on the outer ring and no flanges on the inner ring, NU design bearings can accommodate axial displacement in both directions. An important feature is the separable design, which facilitates mounting and enables the bearing components to be interchanged.
- High radial load carrying capacity
- Low friction
- Long service life
- Accommodate axial displacement in both directions
- Separable design
