Backing bearings have been developed specifically for cluster cold rolling mills, but can also be used for other applications such as straightening or bending machines. These bearings have a special thick-walled outer ring and can be mounted on fixed support shafts to form backing or straightening rolls.
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Skim Through
| Inner Diameter | 90.0mm |
| Functional outer diameter | 220.0mm |
| Inner ring width | 96.0mm |
| Outer ring width | 94.0mm |
| Basic rated dynamic load | 457.0kN |
| Basic rated static load | 550.0kN |
| Bearing parts | Complete set of bearings |
| Number of columns | 2 |
| Hole type | Cylindrical bore |
| Cage | Machined metal |
| Design | with axial guide |
| Radial clearance | NSTD |
| Tolerance class | NSTD |
| Coated | Without |
| Sealing | Without |
| Seal Type | Without |
| Relubrication function | with |
| Net weight | 20.5kg |
| UNSPSC Code | 31171505 |
Technical Parameters
| D | 220.0mm | Outer diameter |
| d | 90.0mm | Hole diameter |
| H | max.65.0mm | Section height |
| B | 96.0mm | Total bearing width on inner ring |
| C | 94.0mm | Total bearing width on outer ring |
| d1 | ≈120.0mm | Outer diameter of retaining edge |
| D1 | ≈150.0mm | Diameter of outer ring retaining edge / inner diameter of seat ring |
| b | 10.2mm | Inner ring lubrication groove width |
| r | min.2.3mm | Outer ring chamfer size ]}, lubrication hole |
| K | 6.0mm | Lubrication hole diameter |
| 6.0mm | Number of holes |
| Basic dynamic load rating | C | 457kN |
| Basic static load rating | C0 | 550kN |
| Fatigue Load Limit | Pu | 68kN |
| Maximum radial dynamic load | Fr | 335kN |
| Maximum radial static load | F0r | 480kN |
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