Guiding element for an electric motor

An electric motor, comprising a rotatably supported element, a guiding element, and a sensor holding device comprising a sensor holder, wherein:

• the sensor holder is adapted to receive a sensor in such a way that a rotary axis of the rotatably supported element extends through the sensor;
• the guiding element is adapted to radially guide the rotatably supported element relative to the rotary axis;
• and
• the guiding element is arranged between the rotatably supported element and the sensor holder, the rotatably supported element being situated facing a first end face of the guiding element and the sensor holder being situated facing a second end face of the guiding element, the guiding element including a centering device;
• wherein the centering device comprises a fixing element adapted to engage a counterpart on the sensor holding device to position and/or fix the sensor holding device relative to the guiding element, said fixing element includes two snap hooks to embrace a side surface of the sensor holding device and one or both of at least a detent pin to snap-engage an opening in the sensor holding device and a press-fit pin to be pressed into an opening or into a recess in the sensor holding device.

A method of installing a rotatable element in an electric motor, the method comprising:

• arranging the rotatable element in a bearing in a housing of the electric motor, the bearing being adapted to support the rotatable element to be rotatable about a rotary axis;
• arranging a guiding element on a side of the rotatable element facing away from the bearing, the guiding element being in contact with a bearing surface of the rotatable element and adapted to radially guide the rotatable element relative to the rotary axis;
• and arranging a sensor in a sensor holder of a sensor holding device so that the rotary axis of the rotatable element extends through the sensor, the guiding element being situated between the sensor holder and the rotatable element;
• wherein the guiding element includes a centering device comprising a fixing element adapted to engage a counterpart on the sensor holding device to position and/or fix the sensor holding device relative to the guiding element and the fixing element includes two snap hooks to embrace a side surface of the sensor holding device and one or both of at least a detent pin to snap-engage an opening in the sensor holding device and a press-fit pin to be pressed into an opening or into a recess in the sensor holding device.