NJ 219 ECJ
Single row cylindrical roller bearing, NJ designSingle 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
Description
| SKF performance class | SKF Explorer |
Dimensions
| d | 95 mm | Bore diameter |
|---|---|---|
| D | 170 mm | Outside diameter |
| B | 32 mm | Width |
| d1 | ≈ 120 mm | Shoulder diameter of inner ring |
| D1 | ≈ 147.35 mm | Shoulder diameter of outer ring |
| F | 112.5 mm | Raceway diameter of inner ring |
| r1,2 | min. 2.1 mm | Chamfer dimension |
| r3,4 | min. 2.1 mm | Chamfer dimension |
| s | max. 1.7 mm | Permissible axial displacement |
Abutment dimensions
| da | min. 107 mm | Diameter of spacer sleeve |
|---|---|---|
| da | max. 110 mm | Diameter of spacer sleeve |
| db | min. 123 mm | Diameter of shaft abutment |
| Da | max. 157.8 mm | Diameter of housing abutment |
| ra | max. 2 mm | Radius of fillet |
Calculation data
| Basic dynamic load rating | C | 255 kN |
|---|---|---|
| Basic static load rating | C0 | 265 kN |
| Fatigue load limit | Pu | 32.5 kN |
| Reference speed | 4 300 r/min | |
| Limiting speed | 4 800 r/min | |
| Minimum load factor | kr | 0.15 |
| Limiting value | e | 0.2 |
| Calculation factor | Y | 0.6 |
Mass
| Mass | 2.86 kg |
Associated products
| Angle ring | HJ 219 EC |
Tolerances and clearances
Bearing interfaces
