Rotor shaft-hub-connection for electric motor, has shaft with pre-center area, center area and torque transmission area for pre-centering, centering and transmission of torque, respectively, where two areas have knurl or gear tooth system

摘要

The connection has a rotor shaft with a pre-center area (A), a center area (B) and a torque transmission area (C). The areas (A - C) are provided for pre-centering, centering and transmission of torque, respectively, where the areas (B, C) include a knurl or a gear tooth system. A hub that is a rotor laminated core (2) comprises a part with a recess for retaining the shaft. An external diameter at the region (C) is larger than at the region (B).