WG2229040240 Mainshaft Hexagonal Key is precisely forged from high-quality alloy steel. It features high overall hardness and excellent toughness, with outstanding shear resistance and torsional resistance, and is not prone to deformation or fracture under heavy-load working conditions.

The surface is precision-ground with accurate and standard dimensions, achieving perfect fitting and reliable positioning and locking, effectively preventing circumferential displacement and slipping of mainshaft components.

Manufactured in strict accordance with original factory standard specifications, it offers good interchangeability and fits the mainshaft assembly of Sinotruk series gearboxes.

With great wear resistance and fatigue resistance, it adapts to long-term high-speed operation and complex heavy-load road conditions. It ensures stable transmission and positioning, and extends the service life of internal gearbox parts.