PLANETARY TRANSMISSION Russian patent published in 2012 - IPC F16H1/32 

FIELD: machine building.

SUBSTANCE: planetary transmission comprises driving eccentric pinion frame 1, planet pinions 2 with outer gearing and openings, fixed central inner gearing wheel 3, cheeks with openings and rollers 8 fitted self-supported in openings of planet pinions and cheeks. Rings 9, 10 and 11 from high-strength material are press-fitted into openings of planet pinions and cheeks. Rubber ring inserts 12 are arranged between aforesaid rings. Planet pinions 2 are furnished with annular grooves on face surfaces, their sizes mating those of cheeks arranged therein.

EFFECT: decreased axial size of gearing.

2 dwg