Description
Dimensions
| d | 220 mm | Bore diameter |
|---|---|---|
| D | 400 mm | Outside diameter |
| B | 65 mm | Width |
| d1 | ≈ 284 mm | Shoulder diameter of inner ring |
| D1 | ≈ 343.7 mm | Shoulder diameter of outer ring |
| F | 268 mm | Raceway diameter of inner ring |
| r1,2 | min. 4 mm | Chamfer dimension |
| r3,4 | min. 4 mm | Chamfer dimension |
| s | max. 2.3 mm | Permissible axial displacement |
Abutment dimensions
| da | min. 238 mm | Diameter of spacer sleeve |
|---|---|---|
| da | max. 263 mm | Diameter of spacer sleeve |
| db | min. 288 mm | Diameter of shaft abutment |
| Da | max. 383 mm | Diameter of housing abutment |
| ra | max. 3 mm | Radius of fillet |
Calculation data
| NR performance class | NR Explorer | |
| Basic dynamic load rating | C | 1 060 kN |
| Basic static load rating | C0 | 1 290 kN |
| Fatigue load limit | Pu | 125 kN |
| Reference speed | 1 700 r/min | |
| Limiting speed | 3 000 r/min | |
| Minimum load factor | kr | 0.23 |
| Limiting value | e | 0.2 |
| Calculation factor | Y | 0.6 |
Associated products
| Angle ring | HJ 244 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 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
