This range gear synchronizer hub is a core component for high-low speed shifting of Sinotruk gearboxes. It is forged from high-quality alloy steel and processed by carburizing, quenching and precision gear grinding technology.
It features high tooth profile accuracy and uniform indexing, with tight and smooth meshing, enabling stable switching between high and low speed range gears.
Boasting high overall structural strength, it resists torque impact and wear, and is not prone to tooth chipping or deformation, adapting to complex working conditions such as heavy-load climbing and frequent shifting of heavy-duty trucks.
Precisely machined in strict accordance with original factory parameters, it has accurate assembly dimensions and good concentricity. It can directly replace original vehicle parts with excellent installation compatibility, ensuring sensitive and stable gearbox shifting performance.
