Description
Dimensions
| d | 280 mm | Bore diameter |
|---|---|---|
| D | 420 mm | Outside diameter |
| T | 174 mm | Total width |
| 2B | 174 mm | Width of inner rings |
| b | 20 mm | Width of lubrication groove |
| K | 15 mm | Diameter of lubrication hole |
| r3,4 | min. 4 mm | Chamfer dimension |
| r5 | min. 1.5 mm | Chamfer dimension |
Abutment dimensions
| da | max. 306 mm | Diameter of shaft abutment |
|---|---|---|
| Da | min. 370 mm | Diameter of housing abutment |
| Da | max. 402 mm | Diameter of housing abutment |
| Ca | min. 14 mm | Minimum width of space required in housing on large side face |
| ra | max. 5 mm | Radius of fillet |
| rc | max. 1.5 mm | Radius of fillet |
Calculation data
| Basic dynamic load rating | C | 2 208 kN |
|---|---|---|
| Basic static load rating | C0 | 4 750 kN |
| Fatigue load limit | Pu | 400 kN |
| Reference speed | 800 r/min | |
| Limiting speed | 1 300 r/min | |
| Limiting value | e | 0.46 |
| Calculation factor | Y1 | 1.5 |
| Calculation factor | Y2 | 2.2 |
| Calculation factor | Y0 | 1.4 |
Tolerances and clearances
General bearing specifications
- Tolerances: Normal + CL7C, P5, total width
- Internal clearance: values
Bearing interfaces
- Seat tolerances for standard conditions
- Tolerances and resultant fit
Matched tapered roller bearings arranged face-to-face (X-arrangement, load lines diverge towards the bearing axis) accommodate high radial loads and axial loads in both directions. The precision manufactured intermediate ring between the outer rings enables a defined internal clearance or preload to be achieved when mounted. Matched tapered roller bearings are typically used in gearboxes, hoisting equipment, rolling mills, and machines in the mining industry.
- High radial load carrying capacity
- Designed for axial loads in both directions
- Relatively high stiffness
- Surface finish on the contact surfaces of the rollers and raceways that enhances operational reliability
