The TRAILER tyres is mounted on one of the axles of the trailer. Again, the tire position can include both INSIDE and OUTER tires, as many trailers use a two-wheel configuration. Trailer tyres are designed to withstand heavy loads and braking forces, are optimized for free rolling, and generally have reinforced sidewalls to protect against damage from the brakes.
It’s easy to take trailer tires for granted – they don’t travel a lot of miles and usually don’t show a lot of wear – but they deserve more attention than just a glance to see if they seem. contain sufficient air.
Each tire has a lot of useful information about its size, type, load range, pressure and date of manufacture. All trailer tires are marked ST – Special Trailer – and they do not look like vehicle tires at all. Trailer tires have reinforced sidewalls that prevent the trailer from swaying in turns and allow them to support the often very heavy combined weight of the trailer and its load.
In the string of numbers indicating the size of the tire, there is a letter – B or R – for bias or radial pleats. You can also see a D for the diagonal, but its construction is the same as a bias ply tire. For short trips, bias ply tires are suitable; our trailer guru Eddie recommends radial tires for long road trips – they can take more weight and not generate as much heat.
Because trailer tires have very stiff sidewalls, they may not seem to need air like your vehicle’s tires do for a more accurate reading, use a gauge and take the tire pressure when cold. It is important to keep the tires inflated to the maximum pressure indicated on the sidewall, even if the load on the tire (weight of the trailer, boat and equipment divided by the number of tires) is less than the maximum load indicated. This minimizes flexing of the sidewalls, which in turn reduces heat build-up
which can lead to its failure. In hot weather or after the tires have warmed up on the highway, the pressure will only increase by 2% every 10 degrees and the tires are designed to accommodate that extra pressure. Don’t lose the valve stem cap while checking the pressure or inflating the tire – it protects the valve core from chippings that will cause a leak.
In a perfect world, fleets would equip their tractors with all-position ribbed tires on the steer axle, as well as dual inner and outer drive axle. The reason is pretty obvious: to save money. First, keeping just two types of tires in inventory – one for steer and drive axles and one for trailers – costs less than keeping a variety of tires in stock. This is true whether a fleet stores its own inventory or a supplier does it for it.
Second, the use of ribbed tires can mean fuel savings. A good ribbed tire, which has less tread than a thicker drive tire, will produce less rolling resistance, which translates into better fuel economy.
For Quote of Trailer Tyres and more details give us a call today at 1300 476 496