Wheel support bearing assembly and angular ball bearing

摘要

There is provided a wheel support bearing assembly ( 1 ) utilizing a dual row angular ball bearing. The bearing assembly ( 1 ) includes two ball retainers ( 5 ) for retaining corresponding rows of balls ( 4 ). One or both of the retainers ( 5 ) is so designed that the neighboring balls ( 4 ) can adjoin directly in a non-contact fashion relative to each other on a pitch circle PCD of the row of the balls ( 4 ). For example, the ball retainer ( 5 ) is of a generally comb-shape having a plurality of pillars ( 5 b) each formed with a throughhole ( 13 ) aligned on the pitch circle PCD.