| 摘要 |
PROBLEM TO BE SOLVED: To provide an actuator that can restrain an increase in starting torque in a use environment at an extremely low temperature.SOLUTION: An actuator comprises: a nut provided inside a housing; and a seal ring provided in contact with an outer peripheral surface of the nut. The seal ring seals a gap between the housing and the nut. A lip of the seal ring is made of rubber that has a property showing a TR10 value of -30°C in a TR test. |
