Крышка цилиндра колесного тормоза Caterpillar 4B8997

The Wheel Brake Cylinder Cup is used to seat and hold the brake return spring in place, ensuring consistent recoil pressure on the piston after brake actuation. This cup-shaped element is placed between the piston and spring, preventing axial displacement of the spring and maintaining uniform compression and expansion. It assists in restoring the piston to its default position after hydraulic pressure is released. By guiding and confining the spring's movement, it prevents misalignment and internal component damage during braking cycles.Attributes:• Resists cracking and fatigue under high pressure.• Prevents spring binding or kinking under load.• Supports uniform pressure balance in the wheel brake unit.Applications: The Wheel Cylinder Cup is installed inside the brake cylinder to securely retain the brake return spring within the cylinder, ensuring that the spring maintains proper positioning and applies consistent force for piston retraction.