| 摘要 |
The invention relates to a method for mounting the rotor (22) of an external rotor motor (20) on a bearing support tube (70) and in a predetermined axial position relative thereto, said rotor (22) comprising a rotor bell (24) and a rotor shaft (28). The inventive method comprises the following steps: a) starting from the rotor bell (28), a compression spring (48), a lock washer (50) and a bearing system with a plurality of antifriction bearings (52, 60) is mounted on the rotor shaft (28), the inner raceways (56, 64) of the antifriction bearings being displaceably mounted on the rotor shaft (28) so as to slide within a predetermined range; b) the rotor (24) with the elements mounted thereon is pressed into the bearing support tube (70) by means of a compression force (K), whereby the compression spring (48) is compressed to such an extent that the rotor bell presses the lock washer (50) into the bearing support tube (70); c) the compression force (K) is removed and the rotor shaft (28) is displaced by means of the compression spring (48) in the inner raceways (56, 64) of the bearings (52, 60) to such an extent that the rotor (24) assumes the predetermined axial position relative to the bearing support tube (70). |
