METHOD TO INCREASE CONTACT STRENGTH OF GEAR WHEEL TEETH Russian patent published in 2015 - IPC F16H55/17 

FIELD: machine building.

SUBSTANCE: method to increase the contact strength of gear wheel teeth involves increasing the hardness of the teeth working faces. The hardness is unequal along the said faces and changes from maximal one - for single-pair engagement, to minimal one - for maximal pair engagement. The change is proportional to the change of engagement pairs and the maximal hardness corresponds to the designed one for the teeth of a design wheel.

EFFECT: increased contact strength of gear wheel and lower costs of its manufacturing.

2 dwg