Webb’s new brake drum is optimized for use in trailer applications.
The new lighter, cooler Webb trailer drum with patented Webb CRT (Cool Running Technology) vents was engineered specifically for 20K trailer axles.
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 percent increase in brake temperatures, causing reduced braking performance and accelerated brake drum and lining wear, said Webb’s Vice President of Engineering Johnathon Capps.
“We realized this is an issue and wanted to see how we could resolve it,” Capps said. “We wanted to maximize the airflow in the system.”
The Webb 66764F brake drum with patented CRT vents increases air flow for superior heat transfer efficiency and cooler trailer wheel-end operating temperatures, managing heat 10 percent better than similar weight brake drums.
“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. 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,” Capps said.
