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

FIELD: machine building.

SUBSTANCE: gear wheel contains hub 1 installed on shaft 2 with axial lubricating channel 3, and toothed rim 4 with teeth 5. Base 6 of each tooth slot has through radial drilling 7 connected with shaft channel. The drilled hole from the slot side is equipped with lubrication distributing channel 8 with profile similar to the profile of the slot base, connected with the drilling by the transition projection 9 and reinforced along the slot width, for example, by gluing with gap Δ relatively to addendum circle of the match wheel. The lubrication distributing channel is provided with plug (10) from both ends, and has output holes 11 oriented towards the work surface of the tooth.

EFFECT: uniform lubrication of the work surfaces of teeth along full width.

2 dwg