GEARING Russian patent published in 2014 - IPC F16H55/17 

FIELD: machine building.

SUBSTANCE: gearing comprises a pair of conjugated gear wheels consisting of bodies (1, 2) and a gear rim with teeth. A pair of annular end patch pieces (3, 4 and 5, 6) is fixed on each wheel at the teeth end faces and the body part adjoining the gear rim. The outer diameter of the patch pieces (3, 4) of one wheel is made with a gap in respect to the diameter of its operating (pitch) circle (7). The width of teeth points (8) at the second wheel in the section from their tips (9) to the operating (pitch) circle (7) is made with a gap in respect to the patch pieces (3, 4) of the first wheel. The teeth fillets (10) at the second wheel are made as belled ones forming gaps between the ends of the teeth point ends (11) at the first wheel and the patch pieces (5, 6) of the second wheel. The parts (12) of the second wheel body adjoining its gear rim are made as belled ones with the bell section being equal to that of the teeth fillets of the second wheel.

EFFECT: higher bending resistance of teeth of both gear wheels in gearing.

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