9.3 Angular Contact Ball Bearing

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       Angular Contact Ball Bearings have raceways in the inner and outer rings that are displaced relative to each other in the direction of the bearing axis. This means that they are designed to accommodate combined loads, i.e. simultaneously acting radial and axial loads.

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9.3.1 Single Row Angular Contact ball Bearing

       Single Row Angular Contact Ball Bearings can accommodate axial loads in one direction only. A single row bearing is typically adjusted against a second bearing. The bearings are non-separable and the bearing rings have one high and one low shoulder. The low shoulder enables a large number of balls to be incorporated in the bearing, giving it a relatively high load carrying capacity. In addition, single row angular contact ball bearings are available in many other designs, dimension series, and sizes.

 

9.3.2 Double Row Angular Contact Ball Bearing

       Double Row Angular Contact Ball Bearings correspond in design to two single row angular contact ball bearings arranged back-to-back, but take up less axial space. They can accommodate radial loads as well as axial loads in both directions. They provide stiff bearing arrangements and are able to accommodate tilting moments.

 

9.3.3 Four-Point Contact Ball Bearing

       Four-Point Contact Ball Bearings are radial single row angular contact ball bearings with raceways that are designed to support axial loads in both directions. For a given axial load, a limited radial load can be supported. These bearings take up considerably less axial space than double row bearings. The inner ring is split. This enables a large number of balls to be incorporated in the bearing, giving the bearing its high load carrying capacity. The bearings are separable, i.e. the outer ring with ball and cage assembly can be mounted separately from the two inner ring halves.