As a key component on the rear axle of a semi-trailer, the strength of the axle has a direct impact on the load-bearing capacity of the axle. As the core part connecting the wheel hub, brake drum, bearing and other wheel end components, the stability of the axle head is crucial to the overall performance of the wheel hub assembly. It can be said that the axle head is like the foundation of a high-rise building, and its stability determines the stability of the wheel end components.
The axle head structure of the rear axle of a semi-trailer can usually be divided into two categories: American and German. The difference between these two structures is also one of the core differences between American and German axles. In appearance, the American axle head presents a more regular cylindrical shape, and its axle diameter is designed to be relatively thick.
