CPC F16H 1/12 (2013.01) [F16H 1/28 (2013.01); F16H 3/78 (2013.01); H02K 7/116 (2013.01); B23Q 5/045 (2013.01)] | 20 Claims |
1. A gear drive comprising:
a motor having an output shaft; and
gearing operatively coupled to the motor;
wherein the gearing includes:
a face gear having a toothed ridge engaging the motor output shaft, and a central sun gear; and
planetary gears engaging the sun gear;
wherein the planetary gears are nested in the face gear, between the central sun pear and the toothed ridge;
wherein the motor output shaft defines a motor output shaft axis about which the motor output shaft rotates;
wherein the axis intersects the sun gear, with the motor output shaft axis substantially perpendicular to a sun gear shaft axis of the sun gear; and
wherein the motor output shaft axis also intersects a volume swept out by the planetary gears as the planetary gears rotate about the sun gear.
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