Single row angular contact ball bearings can only withstand axial load in one direction. When such bearings are subjected to pure radial load, they must be installed and used in pairs because the line of action of the rolling body load and the line of action of the radial load are not in the same radial plane, resulting in an internal axial component.
Main applications of angular contact ball bearing:
Papermaking machinery, reducer, railway vehicle axle, rolling mill gearbox bearing seat, rolling mill roller, crusher,vibrating screen, printing machinery, woodworking machinery, all kinds of industrial reducer, vertical self-aligning bearing with seat,elevator wheel.
There are three different configuration types of paired angular contact ball bearings:
(1) back-to-back configuration, after code DB(such as 70000/DB), this configuration has good rigidity, good performance under overturning moment, bearing can withstand two-way axial load;
(2) face to face configuration, after code DF(such as 70000/DF), this configuration of rigidity and ability to withstand overturning moment is not as good as DB configuration, bearing can withstand two-way axial load;
(3) Series configuration, after the code DT(such as 70000/DT), this configuration can also series three or more bearings at the same support, but can only bear a single direction of the axial load. Usually, in order to balance and limit the axial displacement of the shaft, the other support shall be equipped with a bearing capable of bearing the axial load in the other direction.
