| 摘要 |
An electric motor (1) or drive motor has a cylindrical, possibly, however, even conical or disk-shaped rotor (2) and a cavity or interior space (4) surrounded by the rotor (2) and/or its stator (3), into which protrudes in the installed position an epicyclic gear system (5) or planetary gear system which is driven by the electric motor (1). The electric motor (1) has a toothed power output element, for example, a cantilevered gear shaft (6), with which meshes an opposing-teeth-exhibiting power input element, for example, the planetary gears (7) of the epicyclic gear system (5). The power input element of the epicyclic gear drive (5) having the opposing teeth is preassembled with additional drive parts, for example, the carrier (8) for the planetary gears (7) and the planetary ring gear (17) as well as an output shaft (10) and a housing (13) into a unit (9) or subassembly which, during final assembly, can be combined together with the electric motor (1) and its toothed power output element so that the electric motor (1) and the epicyclic gear system (5) can each be separately preassembled (FIG. 1).
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