While transmitting power to the two half shafts, the two half shafts are allowed to rotate at different speeds.
Meet the wheels on both sides to run in a pure rolling manner to reduce the friction between the tires and the ground.
Help the vehicle to turn and improve the handling and stability of the vehicle.

The Main Reducer Assembly is a core powertrain component tailored for Jianghuai Da Ruifeng Dan East Bridge and Hefei Bridge vehicles, playing a pivotal role in connecting the transmission system to the wheels. It not only ensures efficient power transmission but also enhances the overall driving experience by optimizing key performance indicators such as handling, stability, and tire longevity.

A key advantage of this Main Reducer Assembly lies in its dual speed ratio options: 8:39 and 11:43. These ratios are meticulously calibrated to adapt to diverse driving scenarios. The 8:39 speed ratio excels in scenarios requiring steady cruising, such as long-distance highway driving, as it balances speed and fuel efficiency to reduce unnecessary energy consumption. On the other hand, the 11:43 speed ratio provides stronger torque output, making it ideal for driving on hilly roads or when the vehicle needs to carry heavy loads, ensuring sufficient power to overcome resistance. This flexible ratio configuration allows the assembly to meet the varying demands of different road conditions, enhancing the vehicle's adaptability.

Integrated with the assembly is a half shaft featuring 28 teeth. The 28-tooth half shaft is crafted from high-strength materials through precision manufacturing processes, ensuring robust structural stability and reliable power transmission. It serves as a critical link between the Main Reducer Assembly and the wheels, efficiently transferring the adjusted power from the assembly to the wheels while withstanding the mechanical stress generated during driving. This durable half shaft not only extends the service life of the entire assembly but also reduces the risk of breakdowns caused by component wear.

Beyond power transmission, the Main Reducer Assembly boasts excellent functional performance in optimizing vehicle movement. While delivering power to the two half shafts, it enables the two half shafts to rotate at different speeds—a key function that ensures the wheels on both sides move in a pure rolling manner. This pure rolling motion significantly reduces friction between the tires and the ground, minimizing tire wear and extending the service life of the tires. Moreover, by allowing differential rotation of the half shafts, the assembly facilitates smooth vehicle turning. When the vehicle makes a turn, the inner wheel travels a shorter distance than the outer wheel, and the assembly’s ability to adjust the rotation speed of the two half shafts ensures that both wheels roll without slipping. This not only makes turning more effortless but also greatly improves the vehicle’s handling and stability, especially when navigating curves at medium to high speeds.