Fanuc A06B-6044-Hxxx AC Spindle Servo Units. CNC supply exchange, offer fast testing and quick repair on Fanuc’s first series of AC spindle. All Fanuc AC Spindle Servo Unit A06B-6044-H drives are analogue controlled tested on Fanuc analog controls and Fanuc AC spindle motor (red and black cap). Warranty is 12 months on exchange, repair and surplus.