PRO TECHNICIAN

Conventional Starter.

Other Constructions of Starter

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3. Speed reduction mechanism
(1) Construction
(2) Characteristics
The reduction ratio of the planetary type is 1:5, and the armature is smaller (higher speed) than that of a reduction type starter. In order to achieve quiet operation, a plastic material is used for the internal gear. The planetary type has a damping device, which absorbs excess torque, to avoid breakage of the internal gear.
(3) Operation

REFERENCE:
Damping Device:

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