Separator with direct drive and coolant system integrated into drive housing

A separator includes: a centrifugal drum; a drive spindle, where the drive spindle is rotatably mounted in a drive housing by a neck bearing and a foot bearing, and where the drive housing encloses a drive chamber; an electric motor which has a stator and a motor rotor, where the motor rotor is disposed on the drive spindle, where the stator is fixedly connected to the drive housing, where an air gap exists between the stator and the motor rotor, and where the stator and the motor rotor are arranged between the neck bearing and the foot bearing; a lubricating system for lubrication of the neck bearing and the foot bearing; and a coolant system; where the stator has a flange section which is disposed on a collar section of the drive housing.