| 摘要 |
A roller assembly includes a base plate having an opening, a tubular outer race member formed of polymeric resin and a coaxial tubular inner race member formed of metal. The outer race member is open at its distal end and is provided with an annular proximal end wall adjacent the base plate having its central opening coaxial with the base plate opening and a forwardly directed lip along its inner front border. The inner race member has a distal flange registering with the outer race member distal end and a tubular proximal section projecting through the end wall and base plate openings and having its end upset into engagement with the rear borders of the base plate opening. In producing the assembly bearing, balls are deposited onto the inside face of the outer race member end wall with its distal end uppermost, the inner race member is inserted into the outer race member to entrap the balls between their confronting faces and to bring its proximal end through the registering coaxial openings in the end wall and base plate, and then the end of the proximal end is upset to lock and secure the assembly.
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