120 known working spindle motors

Original Siemens Motor:
see spec. plate.

Marathon Black Max Y541:
fits physically in lathe (with back removed) and mounts to original hinge pin.. not yet tested in lathe. 3HP 220/440VAC. Roughly matches Siemens motor speed range. 182TC frame size. Shaft diameter too large -- sheave needs machining. See motor spec. plate.