GEAR WHEEL Russian patent published in 2015 - IPC F16H55/12 

FIELD: machine building.

SUBSTANCE: gear wheel comprises a body and a gear rim with teeth, a flat ring is installed above the upper end face of the gear rim and parallel to it with a gap in respect to the rim, the outer diameter of the said ring is equal to the diameter of the addendum circle and its inner diameter is equal to the dedendum circle. The ring is fixed on the teeth by radially oriented fins. The gap between the body and the flat ring is covered by a circular insert with its width being equal to the value of the gap between the flat ring and the gear rim and its diameter being equal to the dedendum circle.

EFFECT: improved gear wheel reliability.

2 dwg