| 摘要 |
A geared motor employing a brushless induction motor in nested arrangement, either concentrically inwardly or concentrically outwardly, with a gear reduction device employing two gear wheels, one with interior teeth and one with exterior teeth, said teeth being meshed together. The difference in the number of teeth is small relative to the total number of teeth of each gear wheel. One of the two gear wheels moves in an eccentric path, is free to rotate relative to the rotor but is driven thereby. The other gear is fixed relative to the housing. An output accommodating the eccentric movement of the free gear derives reduced rotational speed and torque from the system.
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