GEAR WHEEL Russian patent published in 2014 - IPC F16H55/12 F16H57/04 

FIELD: machine building.

SUBSTANCE: gear wheel comprises a hub 1 with an axial lubricating channel 3 mounted on a shaft 2, and a toothed rim 4 with teeth 5. Base 6 of each tooth slot has a through radial drilling 7 connected with a shaft channel. The drilled hole from the slot side is fitted with the lubrication distributing channel 8 with a profile similar to the profile of the slot base, connected with the drilled hole by the transition protuberance 9 and reinforced along the slot width, for example, by gluing with a gap Δ with reference to addendum circle of the conjugate wheel. The lubrication distributing channel is plugged from both ends, and has output holes aligned along the hollow centreline.

EFFECT: uniform and complete lubricating of the working surface of the gear.

2 dwg