Effect of Specific Sliding on Surface Durability of Case-Hardened Chromium Molybdenum Steel Roller

抄録

In order to clarify the effect of specific sliding on surface durability of case-hardened gears in relation to temperature rise, the case-hardened chromium molybdenum steel rollers were tested in the range of specific sliding of 0 to -91 percent under two rotating speeds of 1800 and 5400 rpm by using a rolling contact fatigue testing machine. The experimental results on the surface durability and the surface failure of these rollers were discussed considering the temperature rise of roller. and it was suggested that in determining the surface durability of the case-hardened gears the temperature rise can not be neglected on the severe operating condition.