... 40CrNiMoA Dia: 1860mm Modulus: 24 Weight: 2300kg we manufacture spur gear ringthe material can be: AISI4140, AISI1025, 1035, 1045. ... Our company insisted on mature quality management concept and mode, set scientific standard and perfect quality control systemTo ... formed various production lines of standard bearing, special bearings, gear, large gear, sprocket, tire, hollow shaft and many other heat ...