Electric spindle for machine tool, with coolant passages

摘要

The device has a spindle housing (10) in which a stator (7) is arranged that drives a spindle shaft (5) via a rotor (6). The stator consists of a stator plate packet that contacts the inner wall (11) of the spindle housing in a shape-locking manner and that has several external grooves (15) on its edge that form cooling channels for accepting a cooling medium.