English Abstract
Trends of Technology in Automotive Seal Materials
Hironori NISHINA
NOK Corporation Material Engineering Department, Fujisawa-shi, Kanagawa, Japan
Nippon Gomu Kyokaishi,(2007),80(12),466-472 General Review in Japanese

Oil seals are one of the most outstanding component parts of sealing devices in terms of costs, quality, and perfor-mance. Oil seals play an important role in the running of various machines in a stable state over a long period of time. With automobiles becoming more and more high performance, the technical demands on seals are also diversifying. In particular, demands are changing from ghigh performanceh such as high output, long life, reduced exhaust, low fuel consumption to geco-friendlinessh by the effective use of resources and gdriving safety and comforth. This report describes representative rubber materials NBR, HNBR, ACM, VMQ, and FKM important as components of seal prod-ucts, discusses methods of enhancing performance in terms of heat resistance, cold resistance, friction and wear, and fuel resistance, as well as development trends of rubber materials against the technical trends of automobiles.

Oil seal, Automotive, Heat resistance, Cold resistance, Friction, Wear, Fuel resistance