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Self-Inflating Truck Tires

Published Monday, March 24, 2014. Category: Equipment

If there is one area of car maintenance that many of us seem to fail at, it's keeping our tires properly inflated. We all know we're supposed to do it and we know it costs us extra money when we don't do it. For truck drivers, Aperia has a simple solution...self-inflating tires.

Rolling around on under-inflated tires causes a handful of negative issues. Not only does it cause tires to wear out quicker (meaning you will get fewer miles on a set), there is also the higher chance of having a blowout due to weakened sidewalls. Rolling drag is another negative byproduct of "low tires" which means you'll spend more fuel money to travel the same distance.

For truck drivers, who can easily drive 120,000 miles to 150,000 miles a year, the cost of under-inflated tires can really add up. Truck tires are not cheap ($500 or more per tire) and neither is extra fuel. Having a blowout means lost time and money while waiting for roadside assistance.

Although self-inflating tires are not new, Aperia feels like they have hit the sweet spot for this technology.

Aperia's solution is a 5 pound bolt-on compressor, called Halo, that generates air pressure from the movement of the rolling wheel.

The compressor is bolted to the hub cap or axle cap just like a hubodometer mounts. As the compressor rolls on the tire, it has a pendulum mass that hangs while the pump rotates with the wheel, creating a pumping action. Aperia compares the mechanism to a self-winding watch.

The pump contains a regulator that monitors the tire pressure. When the tire pressure falls below the optimum value, the pump is engaged and inflates the tire back up to the proper pressure.

The Halo pump supposedly only takes 5 - 10 minutes to install per axle side and an entire truck can be outfitted in 20 - 30 minutes. The pump is supposed to last for around 500,000 miles.

If only they made these for cars.

Photo Credit: Aperia