Webb Wheel Products Inc. has introduced a new brake drum optimized for use in trailer applications.

The Webb 66764F brake drum with patented Webb CRT (Cool Running Technology) vents was engineered specifically for 20K trailer axles, the company said. Today, many trailers are running with side skirts that improve aerodynamics; however, OTR road data suggests that they can also reduce crosswind and straight line airflow below the trailer. This reduction in air flow results in a 41% increase in brake temperatures, causing reduced braking performance and accelerated brake drum and lining wear, the company explained. The new Webb brake drum increases air flow for superior heat transfer efficiency and cooler trailer wheel-end operating temperatures, managing heat 10% better than similar weight brake drums, according to the company.

“The push to increase trailer aerodynamics has created opportunities for trailer component suppliers to design products that recognize how these new technologies can change overall trailer functions,” said Johnathon Capps, Webb’s vice president of engineering. “Our experience with designing and producing cooler running brake drums directed us to a solution that mitigates the impact of higher brake temperatures caused by the change in air flow.”