| 摘要 |
A reduction mechanism, comprising-an input gear wheel (2) provided with an outer toothing, for coupling with a driving motor, which input gear wheel is provided with an evoloid toothing with only 1 or 2 teeth;-an output gear wheel (3) provided with an inner toothing, whose speed during use is lower than the speed of the input gear wheel;-at least one intermediate gear wheel (4) operative between the input gear wheel and the output gear wheel and whose rotation axis is fixedly arranged.
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