Single row angular contact ball bearings can withstand axial load in one direction

Single row angular contact ball mechanical spindle can withstand axial load in one direction, when the radial load, will cause additional axial force must be applied to the corresponding reverse load, therefore, the kinds of bearings are generally used in pairs. Double row angular contact ball bearings can withstand greater radial load mainly radial and axial joint load and moment loads, it can limit the bi-axial displacement of shaft or housing, the contact angle of 30 degrees.
Paired angular contact ball bearings can bear radial load mainly radial and axial joint load can also be subject to pure radial loads. Tandem configuration can only bear axial load in one direction, the other two configurations can withstand axial load in either direction. This type of bearing is generally matching pairs by the manufacturer to submit a user after installation preload interference, rings and balls in the axial pre-load condition, thereby enhancing the entire group as a single bearing support stiffness and rotation accuracy.