Synthetic resin ball bearing.

摘要

A synthetic resin ball bearing. It comprises an outer race, an inner race and a plurality of balls provided therebetween. The outer race is composed of a first cup-shaped member and a second cup-shaped member. Each cup-shaped member has an opening in the center of the floor portion. The first cup-shaped member is sized to snugly fit generally in the second cup-shaped member. The inner race has an annular shape to be positioned to extend through said respective openings in the first and second cup-shaped members to define an annular chamber in cooperation of said first cup-shaped member and the floor wall of the second cup-shaped member. The annular projection extends into the chamber to define a pair of ball receiving sections. The balls are accommodated within the ball receiving sections.