WG2211020022 1st Shaft Gear (Direct Gear)

WG2211020022 is a main drive gear specially designed for the direct gear of heavy-duty truck HW series transmissions. It integrates the transmission function of the input shaft and the meshing function of the direct gear, transmitting engine power to the main shaft.

It features dense and wear-resistant material, with gear tooth precision reaching National Standard Grade 5, ensuring stable operation and low temperature rise.

Compatible with mainstream heavy-duty truck models such as Howo and Steyr, it is fully interchangeable with original parts without any modification.

It adapts to complex road conditions including long-distance freight and construction site heavy-load operation. With excellent aging resistance and deformation resistance, it serves as a core high-quality component for transmission repair, maintenance and replacement.

WG2211020022 main shaft gear is precision manufactured from high-quality alloy carburizing steel. Through carburizing quenching and low-temperature tempering treatment, it achieves high gear surface hardness and excellent core toughness, delivering outstanding impact resistance and fatigue resistance without tooth breakage or cracking under heavy loads.

Adopting precision gear hobbing and gear grinding technology, it features accurate tooth profile and smooth meshing, ensuring high transmission efficiency and low noise.

Made to OE standard dimensions, it boasts good concentricity of splines and gear rings, with strong interchangeability and easy installation.

It is suitable for direct gear working conditions of heavy-duty truck transmissions, maintaining stable high-torque transmission, reducing wear and failure, and extending the service life of the transmission.