D/W R8 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 | 12.7 mm | Bore diameter |
|---|---|---|
| D | 28.575 mm | Outside diameter |
| B | 6.35 mm | Width |
| d1 | ≈ 17 mm | Shoulder diameter |
| D1 | ≈ 23.6 mm | Shoulder diameter |
| D2 | ≈ 23.6 mm | Recess diameter |
| D3 | 31.12 mm | Flange diameter |
| C | 1.575 mm | Flange width |
| r1,2 | min. 0.4 mm | Chamfer dimension |
Abutment dimensions
| da | min. 15 mm | Diameter of shaft abutment |
|---|---|---|
| ra | max. 0.4 mm | Radius of shaft or housing fillet |
Calculation data
| Basic dynamic load rating | C | 4.42 kN |
|---|---|---|
| Basic static load rating | C0 | 2.36 kN |
| Fatigue load limit | Pu | 0.102 kN |
| Reference speed | 60 000 r/min | |
| Limiting speed | 36 000 r/min | |
| Minimum load factor | kr | 0.03 |
| Calculation factor | f0 | 13.2 |
Mass
| Mass bearing | 0.019 kg |
Tolerance class
| Dimensional tolerances | Normal |
| Radial run-out | Normal |
Tolerances and clearances
Bearing data
Bearing interfaces
