| 摘要 |
PURPOSE:To suppress the deterioration of grease by suppressing the heat generation of a beating by reducing the revolution slide of a roller. CONSTITUTION:A groove is formed on the guide surface for the inner race 2 of a retainer 4, and an O-ring 5 made of the lubricating rubber composition is installed in the groove, keeping a slight tightening gap for the inner race 2. The lubricating rubber composition consists of the thermoplastic fluoro resin as the first essential component, fluorinated rubber as the second essential component, and the low molecular weight polymer containing fluorine as the third essential component. |
