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 | 70.0mm |
| Functional outer diameter | 165.0mm |
| Inner ring width | 90.0mm |
| Outer ring width | 88.0mm |
| Basic rated dynamic load | 297.0kN |
| Basic rated static load | 390.0kN |
| 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 | B |
| Coated | Without |
| Sealing | With seal on both sides |
| Seal type | Gap type |
| Relubrication function | with |
| Net weight | 11.6kg |
Technical Parameters
| D | 165.0mm | Outer diameter |
| d | 70.0mm | Hole diameter |
| H | max.47.5mm | Section height |
| B | 90.0mm | Total bearing width on inner ring |
| C | 88.0mm | Total bearing width on outer ring |
| d1 | ≈106.65mm | Outer diameter of retaining edge |
| D1 | ≈107.0mm | Outer ring retaining edge diameter/seat ring inner diameter |
| b | 13.1mm | Inner ring lubrication groove width |
| r | min.2.0mm | Outer ring chamfer size ]}, lubrication hole |
| K | 8.0mm | Lubrication hole diameter |
| 6.0mm | Number of holes |
| Basic dynamic load rating | C | 297kN |
| Basic static load rating | C0 | 390kN |
| Fatigue Load Limit | Pu | 52kN |
| Maximum radial dynamic load | Fr | 285kN |
| Maximum radial static load | F0r | 415kN |
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