4208 ATN9
Double row deep groove ball bearingDouble row deep groove ball bearings correspond, in their design and operation, to a pair of single row deep groove ball bearings. They are robust in operation, requiring little maintenance, can operate at high speeds and accommodate radial and axial loads in both directions. They are slightly wider than single row bearings of the same bore and outside diameter but have a considerably higher load carrying capacity.
- Versatile and robust design
- High-speed capability
- Accommodate high axial and radial loads in both directions
- Require little maintenance
Description
Dimensions
| d | 40 mm | Bore diameter |
|---|---|---|
| D | 80 mm | Outside diameter |
| B | 23 mm | Width |
| d1 | ≈ 54 mm | Shoulder diameter |
| D1 | ≈ 66 mm | Shoulder diameter |
| r1,2 | min. 1.1 mm | Chamfer dimension |
Abutment dimensions
| da | min. 47 mm | Diameter of shaft abutment |
|---|---|---|
| Da | max. 73 mm | Diameter of housing abutment |
| ra | max. 1 mm | Radius of shaft or housing fillet |
Calculation data
| Basic dynamic load rating | C | 37.1 kN |
|---|---|---|
| Basic static load rating | C0 | 32.5 kN |
| Fatigue load limit | Pu | 1.37 kN |
| Reference speed | 13 000 r/min | |
| Limiting speed | 7 000 r/min | |
| Minimum load factor | kr | 0.05 |
| Calculation factor | f0 | 14.8 |
Mass
| Mass bearing | 0.5 kg |
Tolerance class
| Dimensional tolerances | Normal |
| Radial run-out | Normal |
Tolerances and clearances
Bearing data
Bearing interfaces
