Angular contact bearings have one ring shoulder partially or totally removed, allowing a larger ball complement than found in comparable deep groove bearings. This ensures a greater load capacity, and higher speed capabilities.
Assembled to a contact angle by varying the radial clearance, these spindle bearings have nominal contact angles of either 15º or 25º. This smaller angle delivers improved radial capacity and rigidity.
Separable and non-separable varieties of these angular contact bearings are available.
In a separable bearing, the cage holds the balls in place so that the outer ring assembly (with cage and balls) can be separated from the inner ring.
Separable varieties are suitable for use where bearings must be installed in blind holes, or where press fits are required, both on the shaft and in the housing.
Separable angular contact bearings also permit dynamic balancing of a rotating component with inner ring mounted in place, apart from the outer ring and housing.
Angular contact bearings support thrust loads or combinations of radial and thrust loading, and cannot accept radial loads only, requiring a thrust load of sufficient magnitude.
An individual angular contact bearing can be thrust-loaded in only one direction; this load may be a working load or a preload.