NF 3084 ECMB
Single row cylindrical roller bearingSingle row cylindrical roller bearings are designed to accommodate high to very high radial loads in combination with medium to high speeds. The SKF assortment includes many designs and variants, such as standard, full complement and high capacity 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
Description
Dimensions
| d | 420 mm | Bore diameter |
|---|---|---|
| D | 620 mm | Outside diameter |
| B | 150 mm | Width |
| d1 | ≈ 492 mm | Shoulder diameter of inner ring |
| D1 | ≈ 556 mm | Shoulder diameter of outer ring |
| E | 578.2 mm | Raceway diameter of outer ring |
| r1,2 | min. 3 mm | Chamfer dimension |
| s | max. 13 mm | Permissible axial displacement |
Abutment dimensions
| da | min. 438 mm | Diameter of spacer sleeve |
|---|---|---|
| Da | max. 602 mm | Diameter of housing abutment |
| Db | min. 586 mm | Diameter of housing abutment |
| ra | max. 2.5 mm | Radius of fillet |
Calculation data
| Basic dynamic load rating | C | 2 920 kN |
|---|---|---|
| Basic static load rating | C0 | 5 400 kN |
| Fatigue load limit | Pu | 430 kN |
| Reference speed | 900 r/min | |
| Limiting speed | 1 400 r/min | |
| Minimum load factor | kr | 0.17 |
| Limiting value | e | 0.3 |
| Calculation factor | Y | 0.6 |
Mass
| Mass | 160 kg |
Tolerances and clearances
Bearing interfaces
