... type or with spherical seat type. 3. High quality steel - used can extend bearing life highest 80% super clean ... part of the axial load, low speed, such as crane hook, vertical pumps, vertical centrifuge, jack, ... bearing ring, seat ring and rolling body is separate, can be installed separately. ( function(){ var aBigImageSrc = [ ... } ); } )(); 51100 thrust ball bearing with dustproof cover high quality