A caster includes a yoke for retaining a wheel, a bearing housing connected to the yoke and a replaceable shielded bearing occupying the bearing housing. The inner wall of the bearing housing is provided with a groove into which a retaining ring may be inserted to prevent the shielded bearing from escaping. A caster mounting assembly having a connecting member which passes through a central opening of the shielded bearing is configured to connect the yoke and the bearing housing to a rollable article, such as chair or table. In the event that the shielded bearing needs to be replaced, the caster may be disassembled, the retaining ring removed from the groove, a new shielded bearing substituted for the old shield bearing, the retaining ring replaced in the groove, and the caster reassembled.
Caster having replaceable shielded bearing
2016-07-05
Patent
Electronic Resource
English