Spiral Bevel Gear for Oil Drilling Rig
Spiral Bevel Gear Features: 1) Material: 42CrMo, 20CrMnMo, 20Cr2Ni4, 35CrMo, 20CrMnTi and other high intensity alloy steel2) Tooth flank carburization and nitrification, with rigidity of HRC58-62) Gear precision: Grade VI