Tandem axles

Tandem axles refer to a specific configuration commonly found in trucks and trailers.

1. Power Unit or Trailer Configuration: In the context of trucks, “tandem axles” may refer to a pair of axles located at the rear of either the power unit (such as a tractor or straight truck) or a trailer. If referring to the power unit, it often indicates the number of drive axles on the vehicle.
2. Common Suspension: Tandem axles typically have a common suspension system, meaning that the two axles share a single suspension setup. This arrangement helps distribute the weight evenly between the axles and ensures stability and control while driving.
3. Close Axle Placement: The two axles in a tandem axle setup are usually located close together, allowing them to share the load more effectively. This close placement also helps improve maneuverability, especially when navigating tight turns or confined spaces.
4. Spread Axle: In contrast to tandem axles, a spread axle configuration involves the axles being positioned farther apart. This setup offers benefits such as reduced stress on road surfaces and improved weight distribution, particularly when hauling heavy loads.

Overall, tandem axles play a crucial role in the stability, weight distribution, and maneuverability of trucks and trailers, making them essential components in various transportation applications.