81252 M
Single row cylindrical roller thrust bearing, single directionSingle row cylindrical roller thrust bearings are designed to accommodate heavy axial loads and peak loads in one direction, but not radial loads. They provide a high degree of stiffness and require little axial space. They are mainly used in applications where thrust ball bearings do not have sufficient load carrying capacity. An important feature is the separable design, which facilitates mounting and enables the bearing components to be interchanged.
- High axial load carrying capacity
- High stiffness
- Long service life
- Require little axial space
- Separable design
Description
Dimensions
| d | 260 mm | Bore diameter |
|---|---|---|
| D | 360 mm | Outside diameter |
| H | 79 mm | Height |
| d1 | 355 mm | Outside diameter shaft washer |
| D1 | 264 mm | Bore diameter housing washer |
| B | 23.5 mm | Height shaft washer |
| r1,2 | min. 2.1 mm | Chamfer dimension housing washer |
Abutment dimensions
| da | min. 353 mm | Abutment diameter shaft |
|---|---|---|
| Da | max. 280 mm | Abutment diameter housing |
| ra | max. 2.1 mm | Fillet radius |
Calculation data
| Basic dynamic load rating | C | 1 140 kN |
|---|---|---|
| Basic static load rating | C0 | 5 300 kN |
| Fatigue load limit | Pu | 415 kN |
| Reference speed | 380 r/min | |
| Limiting speed | 750 r/min | |
| Minimum axial load factor | A | 2.247 |
Mass
| Mass bearing | 27 kg |
Tolerances and clearances
Bearing data, Design considerations
Bearing interfaces
