Balance is one of the most important factors in efficient hauling, especially for heavy equipment like boats. Even if the trailer can carry the boat’s weight, it takes efficient weight distribution to keep the vessel from rocking back and forth and getting dislodged from the trailer.
Quality boat trailer axles work by finding stability in numbers. The more axles installed, the less load one axle has to carry throughout the length of the trip. To do this, your boat trailer needs to allow a spread tandem system that puts the axles almost equidistant from each other. Before that, however, here’s a review of how spread tandem axles work.
Stability in Numbers
Widely used in the trucking industry, a spread tandem system features at least two axles that allow better weight distribution. In simple terms, this means that one axle doesn’t have to bear the full weight of the cargo. Spreading the axles far enough also contributes to the distribution; two axles too close together may succumb under the sheer, concentrated weight.
When shopping for boat trailer axles, you may notice numbers preceding the type of axle listed. This refers to the gross weight the axle can support. Although the axle market provides axles that can support as much as 27,500 lbs, boat trailers only need a maximum of 6,000-lb axles.