| 摘要 |
PROBLEM TO BE SOLVED: To provide a gear device capable of reducing moment to work on a rotating shaft.SOLUTION: A gear device 1 includes an external gear 30 having a plurality of external teeth formed on the outer periphery side to engage with internal teeth of an internal gear, a rotating shaft 20 having an eccentric cam 22 for revolving the external gear 30 around a center axis J1, and a pair of balancers 12 arranged on both sides in an axial direction ZA and adapted to be integrally rotated with the rotating shaft 20 to move a mass center UM of an eccentric unit 110 close to the center axis J1. The pair of balancers 12 are arranged on both sides in the axial direction ZA of the external gear 30. |
