Rolling type selection

A According to the bearing load size, direction and nature
①, when the load is small and stable, it is appropriate roller bearings.
②, when the bearing is only subjected to radial load, the choice of radial ball bearings or radial cylindrical roller bearings; when the bearing is only subjected to axial load, thrust ball bearings can be used.
③, when the Bearing life testing machine is simultaneously subjected to axial load and radial load, and radial load should load A relative value R of an axial considered.
When R A is smaller than a lot of the time, the choice of radial ball bearings.
b when A <R, the selection of angular contact ball bearings or tapered roller bearings.
c when the A> R, the choice of the contact angle of the cone large angular contact ball bearings and a large cone angle roller bearings.
d When A much larger than R, it can be thrust and radial bearings used in combination, respectively axial and radial loads.
B according to the speed of the bearing
1, when the size, with the same precision, limit ball bearing roller bearing ratio is high, so the ball bearing is easy for high speed shaft.
2, by the axial load greater speed shaft, the best selection of angular contact ball bearings, thrust ball bearings rather than choice. Due to high speed, the centrifugal force of the rolling elements great bearing worsen working conditions.
C - Particular requirements for bearings
The radial dimensions of the components is limited and radial load and a great time, the selection of needle roller bearings.