Brake caliper rectangular seal ring Description
Automobile brake caliper rectangular seal ring | High temperature and high-pressure resistant sealing solution
Product Overview: The core role of the brake caliper rectangular seal ring
The rectangular seal of the brake caliper is the core sealing element of the automotive braking system, which is specially designed for the dynamic sealing between the piston and the cylinder block of the brake caliper. Its core features include:
High-pressure sealing: To ensure a sensitive braking response, maintain zero leakage at brake fluid pressure (up to 35MPa).
Temperature and wear resistance: It can adapt to extreme temperatures from -40°C to 180°C and withstand high temperatures caused by brake friction for a long time.
Dynamic compensation: The piston movement gap is compensated by the elastic deformation of the rubber to prevent brake fluid leakage or air ingress and ensure braking safety.
Structure and materials: professional design to match severe working conditions
Rectangular cross-section design: Compared with O-rings, the rectangular structure provides a larger contact area and the pressure resistance is increased by more than 30%, especially suitable for the brake caliper environment with high-frequency reciprocating motion.
High-performance rubber materials:
Fluoroelastomer (FKM): High-temperature resistance (200°C) and excellent oil resistance, suitable for passenger cars with frequent braking.
Hydrogenated nitrile rubber (HNBR): anti-aging, anti-fatigue, suitable for heavy-duty braking scenarios of commercial vehicles.
Customization options: Support hardness (60-90 Shore A), color (black, brown, green), and size (according to GB/T 3452.3 standard) customization, to meet the needs of mainstream models.
Performance Advantage: Why Rectangular Seals?
Excellent tightness: passed the vacuum, low-pressure, and high-pressure three-stage seal test (such as ISO 9001 standard), and the leakage rate is less than 0.2MPa/30s.
Long-life design: Wear-resistant formula extends service life to more than 100,000 braking cycles and reduces replacement frequency.
Environmental protection and safety: in line with FDA and SGS certification, no toxic substances are released, and meet the environmental protection requirements of the global automotive supply chain.
Application scenarios and compatible models
Applicable parts: brake caliper piston seal, bleed screw seal, oil pipe interface seal.
Applicable models: passenger cars (such as German and Japanese brands), commercial vehicles (heavy trucks, buses), and new energy vehicles (electric brake systems).
Quality control and certification: to ensure product reliability
Production standards: Strictly follow the IATF 16949 automotive industry quality management system, and the whole process is produced in a dust-free workshop.
Testing equipment: The certified laboratory provides a withstand voltage test (35MPa pressure holding), fatigue test (500,000 times of simulated motion), and high and low-temperature cycle test.
Qualification certificate: Provide material report, ROHS certification, and mass production consistency certificate, and support third-party inspection.
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