Patent ID: 10543505

Abstract:
A tip end face of a body part 13 is provided at a part in front of a discharge port with respect to a rotational direction of a worm wheel 2 with a protruding part 16, and a tip end face of the protruding part 16 is provided with a grease-pushing surface part 17 configured to push grease into concave portions of a worm wheel teeth 3 while raking and leveling the grease so that the grease is substantially uniform in a width direction and in a circumferential direction of the worm wheel teeth 3. Also, the tip end face of the body part 13 is provided at a rear part of the discharge port with respect to the rotational direction of the worm wheel 2 with a protruding wall part 18 for preventing the grease 1 from moving rearwards with respect to the rotational direction of the worm wheel 2.