| 摘要 |
1,161,198. Mechanical seals. REGIE NATIONALE DES USINES RENAULT. 4 April, 1967 [8 April, 1966], No. 15476/67. Heading F2B. The packing 6 in a universal joint is protected by a ring having a tubular portion 11 and an annular 13 disposed between the packing and a shoulder 8 on the cross-pin. The ring 10 is preferably made of plastic. One end of the ring is in the form of a grooved lip which seals against a needle-bearing socket 1. |
