High Performance Zirconia Full Ceramic Insert Ball BearingSpherical ball bearings deep groove ball bearing is actually a variant , characterized by its spherical outer diameter surface that can fit into a corresponding concave spherical bearing self-aligning role to play within . Mainly used to bear radial load mainly radial and axial joint load , generally should not alone bear the axial load , such bearings can be installed separately inner ring ( with a whole group of roller and cage ) and the outer ring .Visit more: www.xzbearings.com/en/high-performance-zirconia-full-ceramic-insert-ball-bearing-83.html