FIELD: mechanical engineering. SUBSTANCE: electric car variable-speed drive unit contains driving shaft-carrier 2, satellite blocks 6, center wheel 7 and mechanism for its axial movement. Satellite blocks 6 are made of axially spring-loaded asymmetric satellites 27 with conical surfaces of contrary taper and tooth-wheel rings. Satellite blocks 6 provide stop of center wheel 7 when revolving it around its rim, minimum and maximum reduction, and any speed in friction contact of center wheel 7 with movable ring 11. EFFECT: enhanced reliability and convenience of control the variable-speed drive unit. 3 cl, 7 dwg
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