Brake Valves for Truck System Whosaler

1. On the car brake drum, there is generally only one wheel cylinder. When the wheel cylinder is subjected to the hydraulic force from the main pump during braking, the piston at both ends of the wheel cylinder will push to the shoe ends of the left and right brake shoes at the same time, and the force is equal. But because the wheel is rotating, the pressure of the brake drum on the brake shoe is asymmetrical, resulting in the role of self-increasing or self-reducing force;

2, therefore, the industry will increase the force of the side brake shoe called collar shoe, self-reducing side brake shoe called from the shoe, collar shoe friction torque is 22.5 times from the shoe, two brake shoe friction lining wear degree is not the same;