... , 40Cr,45#;20CrMnTi 2. process: hobbing, shaping; 3. gear inspect center the gear shaft: Tooth (Z)Modul(M)Diameter(Φ)Normal Press Angle ... .Right, Left, Spur5-8machine, auto,tractor, machine for agriculture,hydraulic pump,engine, transmissionNote: 1.The material can be brass, brozen, 16MnCr5 ... temper, Medium and high frequency.our workshop:the package: oil pump gear shaft for mobile machinery