Automotive Accessories
Automotive Accessories
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Transmission Accessories

The "Precision Hub" of Transmission Power Transmission—The Aluminum Alloy Die-Cast Drive Disc Assembly
As the core transmission element of the transmission, this assembly utilizes an integrated aluminum alloy die-casting process, integrating the disc, connecting arm, and radial reinforcement structure to simultaneously achieve the triple benefits of lightweight support, precise transmission, and fatigue resistance and durability. Compatible with diverse transmission architectures, including automatic and dual-clutch transmissions, it ensures stable gear engagement under high-frequency torque and alternating stress environments, providing an industrial-grade foundation for zero deviation, long life, and high efficiency in the power transmission system.

Product Features:

 

1. Lightweight, Strong Aluminum: Reshaping Transmission Efficiency
Material Selection: Utilizes ADC12 high-strength aluminum alloy, with a density of only 2.7g/cm³ (60% lighter than cast iron) and a tensile strength of 330MPa, meeting the transmission's torque requirements of 300-800N·m.
Topology Optimization: A gradual disc thickness design (4mm center → 2mm edge) balances rigidity and lightweight, reducing transmission assembly weight by 18% and improving energy efficiency by 5%.

 

2. Die-casting Process: Complex Structures Molded in One Shot
Precision Integration: Complex features such as radial ribs (2.5mm spacing), connecting arms (curve radius R15mm), and positioning holes (φ8±0.05mm) are die-cast in one shot, eliminating joint gaps and improving transmission accuracy by 40%.
Technical Breakthrough: Overcoming the challenges of die-casting deep cavities (12mm depth) and multiple undercuts (5 locations), achieving an internal porosity of ≤1% and extending fatigue life by 35%, equivalent to 150,000 kilometers of trouble-free transmission operation.

 

3. Structural Design: Perfect Synergy of Transmission and Stress
Radial Rib Reinforcement: 12 radial ribs arranged at a 30° angle increase wheel plate rigidity by 65%, with gear mesh deviation ≤0.03mm, effectively reducing NVH (Noise, Vibration, and Harshness) noise.
Connector Optimization: The curved connecting arm disperses torque stress, increasing fatigue fracture cycles by 50%, adapting to the transmission's high-frequency shifting rate of 5,000 shifts per minute.
Precision Interface: The alignment between positioning holes and shaft components is ≥99.5%, ensuring zero-lag power transmission.


4. Advanced Performance: Handles Extreme Operating Conditions
Wear-Resistant Enhancement: The surface is hard-anodized (film thickness 10-15μm), reducing the friction coefficient by 25% and achieving 5,000 hours of wear resistance without peeling.
Thermal Management Advantages: The aluminum alloy has a thermal conductivity of 92W/(m·K), assisting the transmission oil cooling system, improving oil temperature control by 12% and protecting seal life.

 

5. Customization and Adaptation: Covering the Full Range of Transmissions
Architecture Compatibility: Supports customization for a wide range of transmission models, including AT (automatic transmission), DCT (dual clutch), and CVT (continuously variable transmission), with customized adjustments to hole and rib positions.
Agile Delivery: Die-casting mold development cycle ≤ 30 days, aligned with the transmission manufacturer's iteration schedule, improving new product matching efficiency by 45%.