The models of Angular contact ball bearings for FAG are divided into: α=15° angular contact ball bearings (70000C type); α=25° angular contact ball bearings (70000AC type); α=40° angular contact ball bearings (70000B Type); back-to-back pairs of double angular contact ball bearings [70000C (AC, B)/DB type]; face-to-face pairs of double angular contact ball bearings [70000C (AC, B)/DF type]; tandem pairs of double angular contact ball bearings Angular contact ball bearings [70000C (AC, B)/DT type]; double row angular contact ball bearings with ball installation gaps (00000 type); double row angular contact ball bearings without ball installation gaps (00000A type); without installation Ball notch, double row angular contact ball bearings with a dust cover on one side (00000A-Z type); no ball notch, double row angular contact ball bearings with dust covers on both sides (00000A-2Z type); no ball installation Notch, double row angular contact ball bearings with a sealing ring on one side (00000ARS type); double row angular contact ball bearings without a ball filling gap, with sealing rings on both sides (00000A-2RS type); four-point angular contact ball bearings (QJ0000 type), 13 types in total.

 

 

Single row angular contact ball bearings can only bear axial load in one direction. When bearing radial load, additional axial force will be caused. And it can only limit the axial displacement of the shaft or housing in one direction.Angular contact ball bearings for FAG have a contact angle of 40 degrees and therefore can withstand large axial loads. Angular contact ball bearings for FAG are a non-separable design, and the shoulders on both sides of the inner and outer rings are of different heights. In order to increase the load capacity of the bearing, the shoulder on one side will be machined lower so that more steel balls can be loaded into the bearing.

 

 

Double row angular contact ball bearings can withstand large radial loads, mainly radial and axial combined loads and moment loads, and limit the axial displacement of the shaft in both directions. The tiltability between the inner and outer rings of double-row angular contact ball bearings, which is mainly used to limit the bidirectional axial displacement of the shaft and housing, is limited. The allowable tilt angle depends on the internal clearance of the bearing, bearing size, internal design and the acting on it. The forces and moments on the bearings, and the maximum allowable inclination angle should ensure that excessive additional stresses are not generated in the bearings.

 

If there is an inclination angle between the inner and outer rings of the bearing, the service life of the bearing will be affected, and the operating accuracy of the bearing will decrease and the operating noise will increase. Double row angular contact ball bearings generally use nylon cages or brass solid cages. When installing double row angular contact ball bearings, attention should be paid to the fact that although the bearings can withstand bidirectional axial loads, if there is a gap for ball installation on one side, care should be taken not to allow the main axial load to pass through the groove on the side with the gap. When using the bearing, care should be taken to ensure that the raceway on the side without the ball filling gap bears the main load. If they are installed in pairs, make the outer rings of the pair of bearings face each other, that is, the wide end faces the wide end face, and the narrow end faces the narrow end face. This avoids causing additional axial forces and limits the axial play of the shaft or housing in both directions. Because the raceways of the inner and outer rings can have relative displacement on the horizontal axis, they can bear radial loads and axial loads at the same time - combined loads (single row angular contact ball bearings can only bear axial loads in one direction, so they are generally Installed in pairs). The materials of the cage include brass, synthetic resin, etc., which vary according to the bearing type and usage conditions.

 

 

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