| 摘要 |
PURPOSE:To provide a ceramic cam roller capable of being stably rotated even if it is operated under a high surface-pressure in a high-speed, high-load condition, and in which the ceramic cam roller itself is hardly damaged or worn, and also the cam itself to be abutted is hardly worn, so that the need of repair within a short period of operation as the driving part of an internal combustion engine can be dispensed with. CONSTITUTION:A ceramic cam roller 1 having a crowned surface 4 of a radius 3 of 1500 to 8500mm at least on the abutting surface to be abutted on a cam 2 is turnably journaled by a transmission member 5. |
