| 摘要 |
PROBLEM TO BE SOLVED: To provide a motor with a speed reducer capable of suppressing the lowering of drive efficiency while achieving miniaturization, in a motor with a speed reducer including a speed reducer operating by a hypocycloidal reduction system.SOLUTION: In a motor with a speed reducer, a convex ridge portion 141 for locally increasing the dynamic pressure of a lubricant is provided at a maximum load position on at least one of an inner peripheral surface 4a of bearing metal 4 of an eccentric shaft and a cylindrical outer peripheral surface of the eccentric shaft.SELECTED DRAWING: Figure 7 |
