| 摘要 |
1371515 Bearings WESTINGHOUSE ELECTRIC CORP 23 Sept 1971 [23 Sept 1970] 34853/71 Heading F2A [Also in Divisions G1 and H2] In a magnetic bearing arrangement of Specification 938,280 the bearing rings (19, 25, Fig. 4, not shown) are made of an aromatic polyimide resin, containing 4% to 80% by weight of a lubricant such as a fluorocarbon polymer, e.g. polytrifluoromonochloroethylene. |
