Trunnion bearing and method of assembly

摘要

A trunnion bearing has a generally cylindrical trunnion member that defines two inner ring raceways. A mounting pin is disposed within the trunnion member and an outer ring encircles the inner ring raceways. The outer ring defines raceways that are aligned with respective inner ring raceways. There is a row of balls between each inner ring raceway and a respective outer ring raceway. A bearing is assembled by placing a mounting pin within a trunnion member. An outer ring having raceways on its interior surface is placed eccentrically around the trunnion member. Each outer ring raceway is aligned with an inner ring raceway. The eccentricity creates an insertion opening for balls. Balls are inserted between the inner ring raceways and their respective outer ring raceways via the insertion opening. The balls are distributed around the trunnion member, and the outer ring moves into concentric relation with the trunnion member.