Angular Contact Ball Bearings have raceways in the inner and outer ring, which are displaced with respect to each other in the direction of the bearing axis. This means that they are suitable for acting radial and axial loads. The axial load carrying capacity of Angular Contact Ball Bearings increases with increasing contact angle.

Single Row Angular Contact Ball Bearings can support radial and thrust loads. They accommodate thrust loads in only one direction; they are adjusted against another bearing, which support the opposite axial load. Single Row Angular Contact Ball Bearings of series 70 BEP, 72 BEP and 73 BEP have a contact angle of 40°. They can therefore accommodate high axial loads, are non-separable and are suitable for particularly high speed.

The Single Row Angular Contact Ball Bearings are produced in two standard versions for different purposes. The standard design is intended for arrangements where only one bearing is used at each bearing position.

Universal preload ground bearings are intended for being mounted in pairs either in X- O- or Tandem-arrangement or for other group mounting. They could be mounted in any possible arrangement.

The following adjustments can be selected:

UA  small axial clearance at X-or O-arrangements

UO zero clearance at X- or O- arrangements

UL light clearance

These bearings are specially manufactured so that when mounted in random order, but immediately adjacent to each other, the predetermined value of axial internal clearance or preload will be attained, or an even distribution of load, without shims or similar devices having to be used.

When arranged in tandem the load lines are in parallel and the radial and axial loads are evenly divided between the bearings. The bearing pair is only able to accommodate axial loads in one direction so that a third bearing is generally adjusted against the pair to carry the axial loads acting in the opposite direction.

The load lines of bearings in O-arrangement diverge towards the bearing axis. Axial loads acting in both directions can be accommodated, but only by one bearing in each direction. Bearings mounted in O-arrangement provide a relatively stiff arrangement, which can also accommodate tilting moments.

Regarding load lines of bearings in X-arrangement, axial loads acting in both directions can be carried, but only by one bearing in each direction. This arrangement is not stiff as the O-arrangement and is also less suitable for the accommodation of tilting moments.

Most Angular Contact Ball Bearings are fitted with a one-piece polyamide cage. Steel and brass cages are available as standard. Other materials are available on demand.
 
The design of Double Row Angular Contact Ball Bearings corresponds to a pair of Single Row Angular Contact Ball Bearings in O-arrangement. The bearings can accommodate high radial loads and thrust loads in both directions. The basic designs of Double Row Angular Contact Ball Bearings have a 32° contact angle. Bearings of series 32 and 33 are manufactured as open bearings but also with seals or shields on both sides. Basic Double Row Angular Contact Ball Bearings have normal tolerances.

Double row Angular Contact Ball Bearings are fitted with cage of glass-fibre-reinforced polyamide or with steel cage.

High Precision Angular Contact Ball Bearings are a further version such as Spindle Bearings for machine tools with 15° and 25° contact angle as well as 60° Angular Contact Ball Bearings for ball screws. These bearings are described in chapter “Precision Bearings”.