For sale is a Rockwell Delta Type PK115230, Single Phase AC Grinder / Buffer Motor. Runs on 1/60/115-230V AC line current. 5/8" Diameter wheel arbors. Takes 7" diameter X up to 1" face-width wheels. 8-1/4" Square base with (4) bolt-holes for bench mounting. Unit Serial No.112-2924. NOTE: There is NO on/off switch with this grinder motor.