... of the beairng: 1)The self-aligning ball bearing are made of an inner ring, an out ring, two rows of balls ... misalignment are to be expected. 4)The inner ring of the self-aligning ball bearing are usually cylindrical, and sometimes are ... appliance, metallurgy, mining machinery, etc Advantages of the bearing:Two kinds of inner bore, cylindrical bore and taper boreSpherical raceway on the outer ringWide ...