Here at Ashley Power we keep a wide range of self aligning bearings in both ball and roller (Commonly known as double row spherical roller bearings.) types in both metric and imperial sizes.
Self-aligning bearings have two rows of balls or rollers with a sphered raceway in the outer ring. This allows the inner race (in conjunction with the balls) to swivel within the outer race, thus allowing the bearing to self-align and take up any angular misalignment due to the positioning of the shaft relative to the housing. This gives the bearings their self-aligning properties.
Due to this self-aligning bearings are particularly suitable for applications where misalignment can arise from errors in mounting or shaft deflection. Additionally the self-aligning ball bearing has the lowest friction of all rolling bearings, which enables them to run cool when operating at high speeds.
Self-aligning bearings are easy to mount, suit all angular variations and in many cases they have been able to replace special housings.
These bearings are commonly fitted to Plummer blocks & can be supplied with either a parallel or taper bore which can then be loaded onto a shaft with a tapered sleeve & locknut