GEAR WHEEL Russian patent published in 2013 - IPC F16H57/04 

FIELD: machine building.

SUBSTANCE: gear wheel consists of body and two rims with groove there between. Lubricant-returning element composed of two plates directed perpendicular to body abutting thereon on all sides is arranged in said groove. Some ends of said plates are jointed together at wheel mirror axis and directed toward gear wheel rotation while opposite ends adjoin aforesaid rims. Note here that said plates are secured at the base to be spring-loaded toward said rims. Said base is rigidly fixed ar gearing housing.

EFFECT: optimised lubrication, reduced wear.

2 dwg