Angularly to the bearing axis, angular spherical plain bearings are constructed with spherically-arranged sliding surfaces on their inner and outer rings. For this reason, they are especially suited for accepting combination loads. A single angular spherical plain bearing can only effectively handle a one-sided axial load, if individually installed. Radial loads can induce an axial force upon the bearing, which must be compensated for with a counter- force. Because of this, these kinds of bearings are usually installed as pairs. If the spherical centre of gravity coincides, a bearing pair can radially, and on both sides axially take on high forces.