Driving bearing device for spinning rotors of open end spinning machines

摘要

An open end spinning machine has a spinning rotor, an electric motor with an axial component of a main field having a rotor and a stator, a bearing housing for the spinning rotor, the rotor of the electric motor being arranged on the spinning rotor while the stator of the electric motor being arranged in the bearing housing, and a short shaft arranged so that the spinning rotor is supported on the short shaft near its center of gravity at least in a radial direction limitedly elastically in the bearing housing and magnetically pre-tensioned in an axial direction.