抄録
The present study describes cycles to failure initiation in endurance tests for carbon and glass fiber reinforced phenol gears (CFRP and GFRP). They are determined under the severe operating conditions, i.e., high rotation speed and high temperature. As a result, CFRP gear pairs showed lower cycles to failure initiation as operating temperature increasing. Although GFRP gear pairs also showed lower cycles as temperature increasing, the highest cycles was obtained under the maximum temperature (180°C ). All results except for under maximum temperature (180°C ) showed CFRP gear pairs have greater endurance than GFRP ones. The CFRP used here includes not only carbon fibers but also organic fibers. These organic fibers could make cycles of CFRP gear pairs lower.
