This spindle ring sits in the spindle stack between the headstock bearing and the outer spindle nuts on the HiTorque 8.5x20 bench lathes and SIEG SC4 bench lathes.

Made of steel, the bearing side has a slight lip to secure that face to the bearing. The lock nut side has a deeper shelf to fit into the lock nut rings.

See Used On tab for reference to machines using this part and the corresponding drawing number.