Description
Dimensions
| d | 260 mm | Bore diameter |
|---|---|---|
| D | 360 mm | Outside diameter |
| B | 100 mm | Width |
| d1 | ≈ 295 mm | Shoulder diameter inner ring |
| E | 331.33 mm | Raceway diameter outer ring |
| b1 | 9.4 mm | Width annular lubrication groove outer ring |
| K | 5 mm | Diameter lubrication hole (outer ring) |
| s | max. 6 mm | Permissible axial displacement from the normal position of one bearing ring relative to the other |
| r1,2 | min. 2.1 mm | Chamfer dimension (open bearings) |
Abutment dimensions
| da | min. 272 mm | Abutment diameter shaft |
|---|---|---|
| Da | max. 349 mm | Abutment diameter housing |
| ra | max. 2 mm | Fillet radius |
Calculation data
| Basic dynamic load rating | C | 1 170 kN |
|---|---|---|
| Basic static load rating | C0 | 2 550 kN |
| Fatigue load limit | Pu | 245 kN |
| Reference speed | 750 r/min | |
| Limiting speed | 950 r/min | |
| Minimum load factor | kr | 0.25 |
Tolerances and clearances
General bearing specifications
- Tolerances: Normal
- Radial internal clearance: table
- Axial internal clearance
Bearing interfaces
- Seat tolerances for standard conditions
- Tolerances and resultant fit
Double row cylindrical roller bearings are designed to accommodate high to very high radial loads in combination with medium to high speeds. The NR assortment includes many designs and variants, such as standard and full complement bearings and also greased and sealed bearings. Depending on the configuration of the outer and inner rings, the bearings are available in locating as well as non-locating designs.
- High to very high radial load carrying capacity
- Low friction
- Long service life
