Hebei Hankai 30x42x7 oil seal

hydraulic lip seal. By creating a tight seal between the piston and cylinder, these seals help to minimize the loss of hydraulic fluid and prevent contamination of the system.


Another important feature of drum brakes is the wheel cylinder, which is located at the top of the brake assembly. The wheel cylinder contains two pistons that move outwards when hydraulic fluid is pressed into the cylinder. This movement causes the brake shoes to expand and press against the drum. The design of the wheel cylinder is crucial, as it ensures even distribution of pressure on both brake shoes, promoting uniform wear and effective braking.
construction of drum brake

One of the standout features of the integral drum parking brake system is its integration with the primary braking system. In many vehicles, the parking brake system is designed to utilize the same hydraulic fluid as the main braking system. This interconnection allows for a more compact design and reduces the overall weight of the vehicle, contributing to better fuel efficiency. Additionally, by sharing hydraulic components, the system can enhance reliability and ease of maintenance.
integral drum parking brake system
