drum’s function is to provide the rotating friction surface that the brake shoes press against to slow or stop the trailer.
10K= designed for a trailer axle application rated around10,000 lb.
12-1/4" × 3-3/8"= the brake drum/brake shoe size: 12-1/4-inch diameter and 3-3/8-inch shoe width.
The drum is typically cast iron, which helps withstand braking heat and wear.
It works with either electric or hydraulic drum-brake assemblies, depending on the specific brake system.
The drum rotates with the wheel/hub. When the brakes are applied, the shoes expand against the inside of the drum, creating friction and converting the trailer's motion into heat.
