A disc brake assembly includes the rotor, friction pads, and caliper. Return springs retract the shoes after brake application. When the brakes are applied, the brake linings press against the friction surface of the brake drum, which encloses the assembly and attaches to the hub, turning with the wheel. Drum brakes have shoes lined with friction material secured to a backing plate by hold-down springs, and actuated by a hydraulic cylinder. Hydraulic drum and disc trailer brakes are similar to those on cars and trucks. When the tow vehicle brakes, the trailer’s inertia pressurizes the brake fluid in the master cylinder, forcing it out through the brake lines to the drum or disc brake assemblies. An actuator mechanism within the trailer coupler contains a hydraulic master cylinder. With surge brakes, the entire braking system is self-contained within the trailer and no hydraulic or electrical connection to the tow vehicle is needed. Because they are regularly immersed in water when launching and retrieving a boat, hydraulic surge brakes are the type most often found on boat trailers.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |