| 摘要 |
A speed reducer is provided with housing having support for a shaft of an enveloping worm and a shaft of a face gear. The enveloping worm placed into meshing engagement with the face gear. They have crossing or intersected axes. The enveloping worm face gears are used for mechanical power transition while reducing the noise and the weight of the speed reducer. It can replace worm, double helical, spiral bevel or hypoid gears
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