D/W R155 R
Deep groove ball bearingSingle row deep groove ball bearings are the most widely used bearing type and are particularly versatile. They have low friction and are optimized for low noise and low vibration, which enables high rotational speeds. They can accommodate radial and axial loads in both directions, are easy to mount, and require less maintenance than many other bearing types.
- Simple, versatile and robust design
- Low friction
- High-speed capability
- Accommodate radial and axial loads in both directions
- Require little maintenance
Description
Dimensions
| d | 3.967 mm | Bore diameter |
|---|---|---|
| D | 7.938 mm | Outside diameter |
| B | 2.779 mm | Width |
| d1 | ≈ 5.53 mm | Shoulder diameter |
| D1 | ≈ 7 mm | Shoulder diameter |
| D2 | ≈ 7 mm | Recess diameter |
| D3 | 9.119 mm | Flange diameter |
| C | 0.584 mm | Flange width |
| r1,2 | min. 0.1 mm | Chamfer dimension |
Abutment dimensions
| da | min. 4.8 mm | Diameter of shaft abutment |
|---|---|---|
| ra | max. 0.1 mm | Radius of shaft or housing fillet |
Calculation data
| Basic dynamic load rating | C | 0.203 kN |
|---|---|---|
| Basic static load rating | C0 | 0.075 kN |
| Fatigue load limit | Pu | 0.003 kN |
| Reference speed | 140 000 r/min | |
| Limiting speed | 90 000 r/min | |
| Minimum load factor | kr | 0.02 |
| Calculation factor | f0 | 7.6 |
Mass
| Mass bearing | 0.0006 kg |
Tolerance class
| Dimensional tolerances | Normal |
| Radial run-out | Normal |
Tolerances and clearances
Bearing data
Bearing interfaces
