STANDARD SPECIFICATIONSRange8" Diameter x up to 12" high on plain table.Work TableA plain cast-iron table, 43" outside diameter, 26" inside diameter.Grinding Wheel18" Diameter x 5" deep x 10" hole (18" x 5" x 10") or 18" diameter x 5" deep, x 12" hole (18" x 5" x 12"), usable depth 4".SpeedsWheel………………………………… 1200 RPM on 60 cycle 1000 RPM on 50 cycleChuck: Fixed speed, easily changed with pick-off gears, from .42 to .88 RPM. Higher and lower ranges are available when required. Also available is a continuously variable drive between .28 and 2.2 RPM.FeedEach wheel head has vertical down feed by hand or power, with power down feed controlled by a separate wheel control caliper for each grinding head. Each wheel head has motor-driven raising and lowering with push-button control.Standard EquipmentTwo 30 HP foot-type spindle motors mounted on wheel heads; one 2 HP motor mounted on base for table rotation; two 3/4 HP traverse motors, two 1/4 HP feed motors. 43" plain table. Water-guards, piping, coolant discharge chute. Two wheel control calipers, two ammeters wired in wheel motor circuits. Control panel containing line start contactors with thermal overload protection for all motors, with 115 volt control circuit.