319028 A/HA2
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 | 160 mm | Total bearing width over inner ring(s) |
| C | 159.5 mm | Total bearing width over outer ring(s) |
| F | 159.375 mm | Raceway diameter inner ring |
| E | 218.375 mm | Raceway diameter outer ring |
| r | min. 2.7 mm | Chamfer dimension outer ring |
| K | 6.5 mm | Diameter lubrication hole |
|---|---|---|
6 | Number of holes |
Calculation data
| Basic dynamic load rating | C | 1 080 kN |
|---|---|---|
| Basic static load rating | C0 | 1 630 kN |
| Fatigue load limit | Pu | 180 kN |
| Maximum dynamic radial loads | Fr | max. 765 kN |
| Maximum static radial loads | F0r | max. 1 100 kN |
Mass
| Mass bearing | 66.6 kg |
