1212K/C3 Nachi Self-Aligning Ball Bearing (Taper Bore)

Self-aligning ball bearings are double-row radial bearings that can’t be separated. Both rows of balls are able to rotate in parallel within an outer ring, which makes them especially good at compensating for alignment errors between the housing and shaft caused by machining and mounting. It also means they run cool and are self-centring.

Applications that commonly use double row self-aligned bearings are track and guidance systems, cranes and elevator equipment. They are also used in rail, automotive and transport and in agricultural machinery, making self-aligning ball bearings one of the most versatile types of bearing available.