Pinion Shaft Assembly

We professionally manufacture full pinion shaft assemblies for mud pump power ends, including pinion shaft bodies, pinion bearings, transmission gear rings, bearing sleeves and sealing gaskets, which transmit torque to drive crosshead reciprocating movement. Gear shafts adopt precision hobbing with high-frequency quenched tooth surfaces, delivering smooth meshing, low noise and strong anti-breakage performance. Matching bearings and gaskets maintain tight sealing to prevent lube oil leakage and protect internal transmission structures. Dimensions perfectly match power ends of BOMCO, Lanshi, Honghua and other brand mud pumps for easy replacement installation. Constant stock supply for global drilling equipment distributors, custom gear shafts with special modules are available in bulk.