DEVICE HAVING AT LEAST ONE PANCAKE MOTOR ROTOR, AND ASSEMBLY METHOD

摘要

A device includes at least one stator and at least one flat motor rotor having at least one magnet unit configured to magnetically interact with the stator such that a drive force for rotating the flat motor rotor relative to the stator acts on the magnet unit. The device further includes at least one first bearing which contributes to rotatably supporting the flat motor rotor relative to the stator, and a second bearing which contributes to rotatably supporting the flat motor rotor relative to the stator. At least part of the first bearing abuts on one side of the flat motor rotor, and at least part of the second bearing abuts on the other side of the flat motor rotor, and the two bearings are preloaded against each other.