| 摘要 |
An apparatus for washing vehicles having pivotable arms secured to bearings formed of high molecular weight plastic which are mounted on a shaft. The bearings are formed from a unitary block of high molecular weight plastic and have cylindrical bores which are adapted to receive the shaft. The bearing is mounted on the pivotable arms of the apparatus for washing vehicles by means of a plurality of fasteners which are received in fastener bores located symmetrically about the cylindrical bore. The fastener bores are lined with a sleeve. The symmetrical location of the fastener bores permit remounting of the bearing to change the portion of the bearing bore which receives the most wear.
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