发明授权
US09157519B2 Worm reduction gear 有权
蜗轮减速装置

Worm reduction gear
摘要:
A worm reduction gear that reduces a rotation of a worm and transmits the reduced rotation to a worm wheel includes a casing that houses the worm and the worm wheel, wherein the casing includes: a wheel opposing surface that opposes an end surface of the worm wheel via an interval; and a grease holding recessed portion formed in a recessed shape in the wheel opposing surface, and the grease holding recessed portion is provided in a position opposing a worm meshing portion between the worm and the worm wheel.
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