Increased Weight Distribution: Tractor trailers carry heavy loads, and having multiple tires helps distribute the weight evenly across a larger surface area. This reduces the pressure on the road and minimizes damage to the pavement.
Improved Traction and Stability: Multiple tires provide better traction and stability, especially on slippery or uneven road surfaces. This is particularly important for navigating curves and maintaining control of the vehicle.
Enhanced Load Carrying Capacity: Each additional tire increases the load-carrying capacity of the trailer. This allows the vehicle to transport heavier loads without exceeding the weight limits set by regulations or compromising safety.
Redundancy and Safety: In the event of a tire failure, having multiple tires on a wheel ensures that the vehicle can continue operating safely without losing control. This redundancy reduces the risk of accidents and breakdowns, especially on long-haul trips.
Reduced Rolling Resistance: Multiple tires can reduce rolling resistance, which improves fuel efficiency and reduces operating costs for transportation companies.
Maneuverability: While additional tires may seem to limit maneuverability, the use of multiple axles and specialized suspension systems enables large tractor trailers to navigate tight spaces and make turns efficiently.
Compliance with Regulations: Many countries and regions have regulations regarding the maximum weight per axle for commercial vehicles. Having multiple tires on each wheel helps comply with these regulations and ensures that the vehicle meets safety standards.
