Angular contact ball bearings

Angular contact ball bearings have raceways on the inner and outer rings, and the inner and outer rings can be relatively displaced along the bearing axis. This type of bearing is particularly suitable for bearing combined loads, that is, loads that act simultaneously in the radial and axial directions. The angular load bearing capacity of an angular contact ball bearing increases as the contact angle α increases. The contact angle is the angle between the line connecting the contact points of the ball and the raceway in the radial plane and the vertical line of the bearing axis.

The types of angular contact ball bearings 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 paired double angular contact ball bearings [70000C (AC, B) / DB type]; Face-to-face paired double angular contact ball bearings [70000C (AC, B) / DF type]; Tandem paired double angle Contact ball bearing [70000C (AC, B) / DT type]; double row angular contact ball bearing with ball gap (type 00000); double row angular contact ball bearing without ball gap (type 00000A); no ball Notch, double-row angular contact ball bearing with dust cover on one side (00000A-Z type); no ball notch, double-row angular contact ball bearing with dust cover on both sides (00000A-2Z type); no ball notch , Double-row angular contact ball bearing with sealing ring on one side (00000ARS type); Double-row angular contact ball bearing with sealing ring on both sides without ball gap (00000A-2RS type); Four-point angular contact ball bearing (QJ0000 type) ), Counting 13 kinds.

Angular contact ball bearing accuracy grades include dimensional tolerances and rotational accuracy. The accuracy is expressed as P0 (normal), P6 (P6X), P5, P4, P2 from low to high. In addition, European and American brands also use P3, P7, and P9 to indicate the accuracy level. P3 is equivalent to the P6 level of the ISO and JIS standards, P7 is equivalent to the P4 level, and P9 is equivalent to the P2 level.