PLANETARY SPIDERLESS GEAR Russian patent published in 2012 - IPC F16H1/46 

FIELD: machine building.

SUBSTANCE: planetary spiderless gear comprises drive central internal gearing wheel 1, stationary external gearing support wheel 2 with ring gears spaced apart axially, driven central external gearing wheel 3 with outer teeth arranged between said ring gears and engaged with shaft 4. Floating pinions consists of pinion shaft 5 and two identical side gears 6 running on pinion shaft extensions 7. Drive central gear 1 consists of two identical halves with two internal gearing ring gears. One of said ring gears engages with side gear 6 while another one engages with pinion shaft ring gear 5.

EFFECT: smaller sizes, higher output capacity in driving short-term-operation drives.

4 cl, 2 dwg