単体の鋼球と鋼平面との転がり摩擦における速度の影響

抄録

This paper describes a study on the effect of the rolling speed on the rolling friction produced when a hard steel ball rolls between two parallel flat plates. The main results obtained are as follows. (1) When the rolling contact surfaces are unlubricated, the rolling friction is greatly effected by the rolling speeds. (2) In the low speed range of a rolling ball, it is considered that the rolling frictionincreases due to the adhesion and in the high speed range the rolling friction similarly increases due to the collision with the contact surfaces. (3) With a small amount of the high viscosity oil, . the rolling friction decreases due to the less adhesion according to the oil film between contact surfaces, and are not effected still held constant in. case of the lower rolling speed.