| 摘要 |
PURPOSE: To provide an outer circumferential rubber fitting type oil seal which can be easily manufactured, and may not slip off even when using environmental temperature is raised. CONSTITUTION: 1.0 to 5.0 weight part of one out of waxes and the like, such as paraffins, fatty acids, fatty acid amides, and fatty acid esters, whose weight decreasing rate reaches at least 50% after secondary vulcanization, is blended in 100 weight part of rubber so as to be used as a rubber composition for an outer circumferential rubber fitting type oil seal. |
