Starting motor with epicycle reduction gear

摘要

A starting motor comprising an epicycle reduction gear, a sun gear installed at the end of the rotary shaft of a driving motor, a plurality of planet gears engaging with the sun gear, a flange for supporting the planet gears, and an internal gear having cylindrical means including an output shaft driven by the revolution of the planet gears and a gear formed on the inner peripheral face thereof, the gear engaging with the planet gears, and a side plate extended from the cylindrical means in the diametric direction and positioned opposite to the flange, a pinion capable of sliding on the output shaft, a bearing surface being formed on either the flange or side plate to allow the opposite contact to slide thereon and a recess filled with grease being provided in the bearing surface.