Angular Contact Ball Bearings

Angular contact bearings have one ring shoulder removed, either from the inner or outer ring. This allows a larger ball complement than found in comparable deep groove bearings, giving a greater load capacity. Speed capacity of angular contact bearings is also greater than deep groove.

Barden's angular contact bearings have a nominal contact angle ranging from 10˚ to 25˚. They can be used in pre-loaded duplex sets, back to back (DB), face to face (DF) for supporting thrust loads in both directions, or in tandem (DT) for additional capacity. The smaller contact angles give better radial capacity and rigidity while the higher contact angles give higher axial capacity and rigidity.

Angular contact bearings support thrust loads or combinations of radial and thrust loading. They cannot accept radial loads alone - a thrust load of sufficient magnitude must also be applied.  A single angular contact bearing can be loaded in one thrust direction only, this may be an operating load or pre-load.

Separable and non-separable types are both available. Separable bearings are useful where bearings must be installed in blind holes or where press fits are required on the shaft and in the housing. The separable feature also permits dynamic balancing of  the rotating components with the inner ring mounted in place without the outer ring and housing.

In Barden miniature and instrument type bearings, machined phenolic cages with high speed capability are standard. These cages are outer ring land guided, which allows lubricant access to the most desired point at the ring and ball contact area. Centrifugal force carries lubricant outwards during operation to reach the other areas of need. 

The standard material for angular contact bearings is SAE 52100 bearing steel for both rings and balls. With the option of using silicon nitride ceramic balls, even higher speeds can be attained. Other materials available are AISI 440C corrosion resistant steel, Cronidur 30 high nitrogen steel and M50 tool steel.