FIELD: machine engineering.
SUBSTANCE: invention relates to gear planetary transmissions with high gear ratios. The planetary reduction gear with a sun gear and paired blocks of satellites engaged with a fixed crown gear and a movable ring gear. The sun gear, the fixed gear, the satellites and the crown gear are provided with supporting elements with circular contact surfaces, the average diameter of which corresponds to the dividing diameter of the corresponding gear wheel, at that the contact surfaces are interacting with each other to form supports of all rotating elements.
EFFECT: improved efficiency, reliability and service life of the planetary reduction gear without a carrier.
3 cl, 5 dwg
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