Function, Specifications, Materials, and Key Parameters of HD9049340094 Rear Brake Pad Assembly
1. Function
The HD9049340094 rear brake pad assembly is a critical safety component in the vehicle's braking system. Its primary function is to generate friction against the brake disc or drum to slow down or stop the vehicle. The brake pads convert kinetic energy into thermal energy through friction, ensuring reliable and efficient braking performance.
2. Specifications
• Part Number: HD9049340094
• Brand: Compatible with Hande Axle or specific heavy-duty commercial vehicle models (e.g., Shaanxi Automobile Delong series)
• Model: Designed for rear-wheel braking systems
• Type: Replacement brake pad assembly for commercial vehicles
• Configuration: Typically includes friction material, backing plate, and anti-noise shims
3. Materials
• Friction Material: Made from semi-metallic, ceramic, or organic compounds, depending on the specific design and performance requirements. Semi-metallic pads offer high durability and heat resistance, while ceramic pads provide lower noise and dust.
• Backing Plate: Constructed from high-strength steel to support the friction material and ensure structural integrity
• Anti-Noise Shims: Made from rubber or other vibration-damping materials to reduce brake noise and vibration
4. Key Parameters
• Friction Coefficient: Typically ranges from 0.34 to 0.42, ensuring stable braking performance under various conditions (e.g., wet, high-temperature, or emergency braking scenarios)
• Thermal Stability: The friction material must withstand high temperatures without significant degradation, typically designed to operate effectively up to 600°C
• Wear Rate: The rate at which the friction material wears down over time. High-quality pads offer lower wear rates and longer service life
• Noise Level: Designed to operate quietly, with noise levels typically below 65 decibels (dB) during normal braking
• Compatibility: Designed to be compatible with specific brake disc or drum sizes and vehicle models (e.g., compatible with Hande Axle or Shaanxi Automobile Delong series trucks)
• Dimensions: The size and shape of the brake pad must match the vehicle's brake caliper and disc/drum specifications (specific dimensions not provided, but typically tailored to the vehicle's design)
• Weight: The weight of the brake pad assembly may vary based on materials and design, but it is typically lightweight for ease of installation and reduced unsprung mass
• Operating Temperature Range: Designed to operate effectively in various environmental conditions (typically designed to operate between -40°C and +120°C)