Thrust ball bearings are made up of series balls (with cage), a shaft washer (fit tightly wit 52214 52215 52216 52217 52218 52220 52224 52228 52232 52236 52238 52240 52.FAGBND3240KCTBF BND3240-H-C-T-BF-S 52230MP 52232MP 52234MP 522372A 52238MP 52240MP 522742B 52322MP 523247C 52328MP 52330MP 5