Idler Hub

Trailer Axle Idler Hub

The Trailer Axle Idler Hub is a critical component of a trailer's wheel assembly that sits at the axle's end. Made from sturdy and durable materials, typically cast iron or steel, it is designed to withstand vigorous wear and tear. It often comes with pre-installed races and bearing surfaces, meaning they are machined to allow smoother spinning of the wheels.

The idler hub connects the wheel to the axle and allows the wheels of the trailer to spin freely. It does so by reducing the friction between the wheel and axle via a system of bearings. It usually comes equipped with a grease fitting for maintenance purposes and ensuring longevity.

Its functionality revolves around a series of bearings and races, which are shielded by the hub and a dust cap. This critical piece of equipment is essential for the smooth motion of the trailer wheels, allowing for the carrying of heavy loads over long distances without issues.