抄録
In order to evaluate the potential capability of planetary roller traction drives in a wide torque range and to promote its effective and widespread application such as assembling passenger cars, dependence of a power transmitting efficiency on load, speed were evaluated comparing with a rated driving condition. Experimental results showed that main factors for the efficiency were deduced to be the friction loss of oil seals and oil viscosity resistance. Moreover, rolling loss such as speed transmitting loss and elastic hysteresis were found out to be small.
