Brake Master Cylinder Component Location Diagram
Sep 11, 2025
Brake Master Cylinder Component Location Diagram
In the hydraulic brake system, the master brake cylinder is like the heart of the human body. Through the coordinated work of 17 precision parts, it converts the driver's pedal force into powerful braking force. These parts each perform their duties and together build an efficient and reliable power transmission system. Many automotive brands today rely on an OEM Wholesale brake master cylinder to achieve both precision and consistency in braking performance.
I. Reservoir assembly: the "blood bank" of the brake system
The reservoir cap (1) and the sealing ring (2) form the first line of defense against dust and overflow, ensuring that the brake fluid is not contaminated. The filter (3) is like a precision sieve, intercepting metal debris and impurities in the oil to ensure the cleanliness of the hydraulic oil. The rigid connection of the bolt (4) and the positioning pin (7) tightly fixes the reservoir (5) and the master brake cylinder (8), while the rubber retaining ring (6) absorbs vibration through elastic deformation to prevent the interface from loosening. The coordinated action of this component provides a stable and clean supply of hydraulic oil for the brake system. Choosing from a Factory Wholesale brake master cylinder source ensures stable quality and a cost-effective supply of these vital assemblies.
II. Power transmission unit: force amplification and conversion
The primary piston (9) and the secondary piston (12) form a series booster structure. When the brake pedal is pressed, the pressure cup (10) and the piston cup (11) achieve step-by-step pressure amplification through dynamic sealing. The grease application (13) significantly reduces the resistance to piston movement, making the brake response more sensitive. This design cleverly converts the driver's pedal force into a powerful braking force, ensuring that the vehicle can quickly decelerate. Behind this engineering lies the expertise of every brake master cylinder manufacturer, who ensures each piston and seal performs flawlessly under pressure.
III. Sealing system: the last line of defense against leaks and overflows
The push rod seal (14) adopts a multi-layer lip design that can automatically adjust the sealing strength as the pressure changes, preventing hydraulic oil from leaking from the push rod interface. The combination of the retaining spring (15) and the cup (16/17) allows axial displacement while preventing hydraulic oil from flowing back. This "rigid and flexible" design ensures the reliability and durability of the brake system under high-pressure conditions.
