Single angular contact ball bearing can only accept an axial load in one direction, together with the need to equip other bearings to offset its additional axial force, and its additional axial force into a pair of devices that offset each other, and can accept two force upward axial load, and has a strong axial limit in two directions, pair of devices usually choose two sets of bearings with its outer ring wide end face relative or narrow end face relative two kinds of device way. The back-to-back configuration bearing group has the best rigidity.
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Types:
719 series is the ultra-light series among angular contact ball bearings;
70 series is the light-series among angular contact ball bearings;
72 series is the strengthening series among angular contact ball bearings;
718 series angular contact ball bearing widely used for spindles;
Double row angular contact ball bearings;
Matched pair angular contact ball bearings;
Double row thrust angular contact ball bearings;