The main differences between the two axles will be elaborated below:
External axle, usually used in heavy trucks, trailers, semi-trailers and other large commercial vehicles, it is located on the outside of the vehicle tire, directly connected and supported the wheel. Its structure is relatively simple, mainly consisting of a solid shaft body and bearing seats at both ends for mounting wheels. The advantage of the external axle is its strong load-bearing capacity and easy maintenance.
1. Load-bearing capacity: Due to the solid structure of the external axle, it has extremely high strength and rigidity and can withstand huge weight, which is suitable for transporting heavy cargo.
2. Convenient maintenance: Due to the simple structure, the repair and maintenance of the external axle is relatively easy, and the operation is convenient when replacing the tire or repairing the bearing.
3. Application scenario: It is mainly used in trucks and trailers that require extremely high carrying capacity, especially in unpaved roads or harsh road conditions, and its durability is more prominent.
4. Disadvantages: The external axle increases the total width of the vehicle, affects the turning radius of the vehicle, and the wind resistance is larger at high speed, affecting the fuel economy.
Built-in axles, usually integrated in the drive axle, are commonly found in cars, SUVs, light trucks and other models, especially those with front - and rear-wheel drive vehicles. This kind of axle not only bears the task of bearing and transmitting power, but also is often integrated with the differential, transmission device, etc., to form a complex drive system.
1. High integration: The built-in axle integrates gear, differential and other transmission components, making the power distribution more flexible and improving the vehicle's handling and stability.
2. Space saving: Due to its compact structure, the built-in axle can effectively reduce the space occupied by the vehicle chassis, reduce the body height, improve aerodynamic performance and improve fuel efficiency.
3. Dynamic performance: Vehicles with built-in axles usually have better acceleration performance and more stable high-speed driving ability, especially when turning, the role of the differential can effectively avoid tire skid and maintain the tracking of the vehicle.
4. Complex maintenance: Compared with the external axle, the maintenance and repair of the built-in axle is more complex, requiring professional technology and tools, and the cost is higher.
