Backing bearings have been specially developed for cold rolling mills of the cluster type, but can also be used for other applications, e.g. straightening or bending machines. Backing bearings are roller bearings having a particularly thick-walled outer ring and can be mounted on stationary support shafts to form back-up or straightening rolls. The forces from the work rolls are transmitted via the support shaft and a system of support saddles to the roll or machine stands. Fig 1 shows the arrangement of the backing bearings on the eight support shafts of a 20-roll mill.
Backing bearings have been specially developed for cold rolling mills of the cluster type, but can also be used for other applications, e.g. straightening or bending machines. Backing bearings are roller bearings having a particularly thick-walled outer ring and can be mounted on stationary support shafts to form back-up or straightening rolls. The forces from the work rolls are transmitted via the support shaft and a system of support saddles to the roll or machine stands. Fig 1 shows the arrangement of the backing bearings on the eight support shafts of a 20-roll mill.
| SKF/Global | SKF/North America | |
|---|---|---|
| Product Category | Roller Bearings | Roller Bearings |
| Product Number | 143603004 | 143603004 |
| Product Name | Backing Bearings for Cluster Mills - 315018 A | Backing Bearings for Cluster Mills - 315018 A |
| Rolling Element | Steel | Steel |
| Design Units | Metric | Metric |
| Bore | 3.9370 inch (100.000 mm) | 3.9370 inch (100.000 mm) |
| Outside Diameter | 8.8583 inch (225.000 mm) | 8.8583 inch (225.000 mm) |
| Overall Width | 4.7244 inch (120.000 mm) | 4.7244 inch (120.000 mm) |
