30236/DF
Matched tapered roller bearings arranged face-to-faceMatched 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
Description
Dimensions
d | 180 mm | Bore diameter |
---|---|---|
D | 320 mm | Outside diameter |
T | 114 mm | Total width |
2B | 104 mm | Width of inner rings |
b | 15 mm | Width of lubrication groove |
K | 10 mm | Diameter of lubrication hole |
r3,4 | min. 4 mm | Chamfer dimension |
r5 | min. 1.5 mm | Chamfer dimension |
Abutment dimensions
da | max. 212 mm | Diameter of shaft abutment |
---|---|---|
Da | min. 278 mm | Diameter of housing abutment |
Da | max. 303.5 mm | Diameter of housing abutment |
Ca | min. 8 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 | 1 079 kN |
---|---|---|
Basic static load rating | C0 | 1 630 kN |
Fatigue load limit | Pu | 160 kN |
Reference speed | 1 200 r/min | |
Limiting speed | 2 000 r/min | |
Limiting value | e | 0.46 |
Calculation factor | Y1 | 1.5 |
Calculation factor | Y2 | 2.2 |
Calculation factor | Y0 | 1.4 |
Mass
Mass | 35.5 kg |
Tolerances and clearances
Bearing data
Bearing interfaces