N 28/710 ECMB
Single row cylindrical roller bearing, N designSingle row cylindrical roller bearings are designed to accommodate high radial loads in combination with high speeds. Having two integral flanges on the inner ring and no flanges on the outer ring, N 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
Description
Dimensions
| d | 710 mm | Bore diameter |
|---|---|---|
| D | 870 mm | Outside diameter |
| B | 95 mm | Width |
| d1 | ≈ 767 mm | Shoulder diameter of inner ring |
| E | 831 mm | Raceway diameter of outer ring |
| r1,2 | min. 4 mm | Chamfer dimension |
| s | max. 7.5 mm | Permissible axial displacement |
Abutment dimensions
| da | min. 725 mm | Diameter of spacer sleeve |
|---|---|---|
| da | max. 825 mm | Diameter of spacer sleeve |
| Da | min. 835 mm | Diameter of housing abutment |
| Da | max. 855 mm | Diameter of housing abutment |
| ra | max. 3 mm | Radius of fillet |
Calculation data
| Basic dynamic load rating | C | 1 940 kN |
|---|---|---|
| Basic static load rating | C0 | 5 000 kN |
| Fatigue load limit | Pu | 365 kN |
| Reference speed | 630 r/min | |
| Limiting speed | 850 r/min | |
| Minimum load factor | kr | 0.07 |
| Limiting value | e | 0.3 |
| Calculation factor | Y | 0.4 |
Mass
| Mass | 127 kg |
Tolerances and clearances
Bearing interfaces
