Abstract
The purpose of this research is to develop the high strength gears that can contribute to downsizing and weight saving of gear system. We verified the effects of temperature on micro-pitting strength by using two roller testing machine We confirmed that (1) At the end of the test, damage ratio was 7〜8% when the temperature of the test roller was 47 ℃ and 101 ℃. On the other hand, damage ratio was about 20% when the temperature of the test roller was 140 ℃. (2) Due to the rise of the temperature, micro-pitting strength fell to a low level.
