... ectDia: 200-8000mmModulus: 10-50Weight: 50kg-20000kgAll kinds of gear ring used on ball mill, sugar mill, rotary kiln and ... different countries and areas. We keep supplying excellent technical support, series products and extend value to many famous companies ... , special bearings, gear, large gear, sprocket, tire, hollow shaft and many other heat treatment products. Big Gear Ring Used For Gearbox