| 摘要 |
1,241,966. Bearings. NORTH AMERICAN ROCKWELL CORP. 18 Oct., 1968 [14 Dec., 1967], No. 49417/68. Heading F2A. A shaft 34a is journalled for rotation by means of a synthetic plastics sleeve 38a attached to the shaft engaging with a bush 42a of a different synthetic plastics material which has a cylindrical bore bearing against the sleeve, the bush being supported by brackets 52a and 54a. The sleeve is made of a polyacetal resin but nylon or PTFE may also be used, and the bush if preferably nylon. |
