Description
Dimensions
| d | 190 mm | Bore diameter |
|---|---|---|
| D | 340 mm | Outside diameter |
| B | 92 mm | Width |
| d1 | ≈ 243 mm | Shoulder diameter of inner ring |
| D1 | ≈ 296.4 mm | Shoulder diameter of outer ring |
| F | 228 mm | Raceway diameter of inner ring |
| r1,2 | min. 4 mm | Chamfer dimension |
| r3,4 | min. 4 mm | Chamfer dimension |
| s | max. 5 mm | Permissible axial displacement |
Abutment dimensions
| da | min. 207 mm | Diameter of spacer sleeve |
|---|---|---|
| da | max. 224 mm | Diameter of spacer sleeve |
| db | min. 247 mm | Diameter of shaft abutment |
| Da | max. 322 mm | Diameter of housing abutment |
| ra | max. 3 mm | Radius of fillet |
Calculation data
| NR performance class | NR Explorer | |
| Basic dynamic load rating | C | 1 220 kN |
| Basic static load rating | C0 | 1 600 kN |
| Fatigue load limit | Pu | 160 kN |
| Reference speed | 2 000 r/min | |
| Limiting speed | 3 400 r/min | |
| Minimum load factor | kr | 0.3 |
| Limiting value | e | 0.3 |
| Calculation factor | Y | 0.4 |
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 one on the inner ring, NJ design bearings can accommodate axial displacement in one direction. 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
- Locate the shaft axially in one direction
- Separable design
