This heavy-duty intermediate spur gear is a critical power transmission part for 5-ton wheel loader gearboxes, fully researched, forged and processed by Shandong Hengji Group Co., Ltd., a national "Specialized, Sophisticated, Distinctive & Innovative" enterprise with integrated forging, heat treatment and precision grinding production lines.
We adopt premium 42CrMo alloy forged steel as blank material. Integral forging eliminates internal pores, shrinkage cavities and microcracks, providing much stronger load capacity and impact toughness than ordinary 45# carbon steel gears. The complete standardized manufacturing process includes CNC rough turning, precision hobbing, carburizing & quenching, low-temperature stress relief tempering, Class 6 high-precision gear grinding, inner bore fine finishing and magnetic particle non-destructive flaw detection. After heat treatment, tooth surface hardness reaches HRC 58–62, while the gear matrix retains excellent ductility, effectively preventing tooth pitting, abrasion and tooth breakage under continuous heavy-load operation in construction yards, mines and earthmoving sites.
Class 6 precision grinding greatly optimizes tooth profile and pitch accuracy, cutting transmission vibration and abnormal running noise by nearly 30% compared with low-precision aftermarket replacement gears. Its service lifespan increases by 45% under severe working conditions, which can significantly reduce equipment downtime and spare part replacement costs for loader operators and maintenance merchants. All machining and heat treatment procedures are completed in our self-owned workshops without outsourcing, so we can maintain consistent strict quality control and stable delivery cycles for bulk OEM supporting orders.
This intermediate spur gear perfectly matches mainstream 5-ton wheel loader gearboxes of Shantui, XCMG, Liugong and other domestic top construction machinery brands. Each finished gear undergoes full dimensional inspection and is issued with factory test reports, and all export products pass CE certification with a 12-month quality warranty. Besides standard loader gear models, our technical team accepts custom production according to customers’ drawings, samples or special parameter demands for different modules and tooth counts.
We maintain long-term stable supply cooperation with domestic engineering equipment manufacturers. Our loader gears are exported in large batches to Saudi Arabia, South Africa, Kenya, Algeria, Russia and Southeast Asian markets. Global buyers consistently praise our products for reliable durability, competitive FOB factory prices and flexible minimum order quantity. Our professional after-sales team offers timely technical consultation and problem-solving support for all international partners.
