311
Deep groove ball bearing with filling slotsSingle row deep groove ball bearings with filling slots accommodate more balls than standard deep groove ball bearings. They are of a simple, yet versatile, design and are robust in operation, requiring little maintenance. They can accommodate radial and axial loads in both directions. They have a higher radial load carrying capacity than the corresponding bearings without filling slots but have a limited axial load carrying capacity due to the filling slots.
- Simple, versatile and robust design
- Accommodate higher radial loads than corresponding bearings without filling slots, with limited axial loads in both directions
- Require little maintenance
Description
Dimensions
| d | 55 mm | Bore diameter |
|---|---|---|
| D | 120 mm | Outside diameter |
| B | 29 mm | Width |
| d1 | ≈ 75.34 mm | Shoulder diameter |
| D2 | ≈ 103.7 mm | Recess diameter |
| r1,2 | min. 2 mm | Chamfer dimension |
Abutment dimensions
| da | min. 66 mm | Diameter of shaft abutment |
|---|---|---|
| Da | max. 109 mm | Diameter of housing abutment |
| ra | max. 2 mm | Radius of shaft or housing fillet |
Calculation data
| Basic dynamic load rating | C | 79.2 kN |
|---|---|---|
| Basic static load rating | C0 | 67 kN |
| Fatigue load limit | Pu | 2.85 kN |
| Reference speed | 10 000 r/min | |
| Limiting speed | 6 300 r/min | |
| Minimum load factor | kr | 0.05 |
Mass
| Mass bearing | 1.5 kg |
Tolerance class
| Dimensional tolerances | Normal |
| Radial run-out | Normal |
Tolerances and clearances
Bearing data
Bearing interfaces
