Shaft products are elongated parts used to transmit power or support rotating components, with the core function of bearing torque and bending moment.

The structure is cylindrical or stepped, and the surface may have keyways, threads, or splines.

The materials are alloy steel, stainless steel, titanium alloy, and carbon fiber composite materials.

The process adopts forging+precision machining (grinding, heat treatment), and surface hardening (carburizing/nitriding).