| 摘要 |
PROBLEM TO BE SOLVED: To avoid deterioration of a boot made of polyester thermoplastic elastomer (TPC) in a constant velocity joint. SOLUTION: Each boot 24 of triport type constant velocity joints 10a, 10b is made of TPC. The grease 26 to be sealed into this boot 24 contains sulfur-phosphorus extreme pressure agent and potassium borate hydrate being sulfur-phosphorus compound containing base oil, diurea compound thickener, dialkyl sulfide dithio calbamic acid molybdenum, sulfur, and phosphorus as constituent elements. COPYRIGHT: (C)2006,JPO&NCIPI |
