314833 BC
Backing bearingBacking bearings have been specially developed for cold rolling mills of the cluster type, but can also be used for other applications, such as straightening or bending machines. These bearings have a particularly thick-walled outer ring and can be mounted on stationary support shafts to form backup or straightening rolls.
- Super-precision quality for tolerances of run-out
- Very tight tolerances for the cross-sectional height
- Designed for high loads
Description
Dimensions
| D | 300 mm | Outside diameter |
|---|---|---|
| d | 130 mm | Bore diameter |
| H | max. 84.965 mm | Section height |
| B | 172.64 mm | Total bearing width over inner ring(s) |
| C | 172.64 mm | Total bearing width over outer ring(s) |
| F | 159.38 mm | Raceway diameter inner ring |
| E | 218.46 mm | Raceway diameter outer ring |
| r | min. 2.7 mm | Chamfer dimension outer ring |
| K | 8 mm | Diameter lubrication hole |
|---|---|---|
12 | Number of holes |
Calculation data
| Basic dynamic load rating | C | 1 170 kN |
|---|---|---|
| Basic static load rating | C0 | 1 800 kN |
| Fatigue load limit | Pu | 200 kN |
| Maximum dynamic radial loads | Fr | max. 830 kN |
| Maximum static radial loads | F0r | max. 1 180 kN |
Mass
| Mass bearing | 72.3 kg |
