Aluminium Alloy Heat Sink and Fan Cooling System for 540, 550, 3650, and 3660 RC Vehicle Motors - Lightweight 20g Active Forced-Air Motor Cooling for RC Car and Truck Builds
The Aluminium Alloy Heat Sink and Fan Cooling System is a compact, lightweight active motor cooling assembly designed for 540, 550, 3650, and 3660 class RC vehicle motors, providing combined conductive heat sink and forced-air fan cooling to prevent motor overheating during sustained high-load, full-throttle, and high-ambient-temperature RC car and truck operation. At approximately 20 grams total assembly weight, this cooling system is substantially lighter than heavier aluminum heat sink and fan combinations in the same motor compatibility class, making it a low-penalty thermal management addition for weight-sensitive 1/10 scale RC builds where every gram of added chassis weight has a measurable effect on handling, acceleration, and motor loading. The 35mm inside diameter accommodates the can diameters of 540, 550, 3650, and 3660 motors within the standard size range used across the majority of 1/10 scale RC car and truck platforms, and the 30 x 30mm fan face provides adequate airflow coverage across the heat sink fin area for effective convective heat dissipation at typical 5V RC receiver supply voltage fan speeds.
The aluminium alloy heat sink body clamps directly onto the motor can surface, establishing metal-to-metal thermal contact across the contact area for conductive heat transfer from the motor can into the higher-surface-area heat sink structure, where the integrated fan then accelerates convective dissipation by moving air across the exposed fin surfaces. This combined conductive-plus-convective active cooling approach is significantly more effective at sustaining low motor operating temperatures under continuous load than either passive aluminium contact alone or fan-only cooling without a heat sink body, particularly in the sustained low-speed high-torque driving profiles of rock crawlers and trail trucks, where motor heat accumulates continuously without the natural forced airflow available to motors in high-speed on-road applications. The easy install and remove design allows the heat sink and fan assembly to be transferred between motor builds or removed for maintenance without tools or permanent modification to the motor or chassis, and the aluminium alloy plus plastic construction balances thermal conductivity, structural rigidity, and weight across the 20-gram total assembly target.
Key Features
- Active Forced-Air Cooling: Combined aluminium alloy heat sink and integrated fan for conductive-plus-convective motor thermal management beyond passive cooling limits
- Lightweight Construction: Approximately 20g total assembly weight for minimal chassis weight penalty in weight-sensitive 1/10 scale RC car and truck builds
- Motor Compatibility: 35mm inside diameter fits 540, 550, 3650, and 3660 motor can sizes across standard 1/10 scale RC car and truck motor platforms
- Aluminium Alloy Heat Sink: High-conductivity aluminium alloy body for efficient heat transfer from motor can surface into the heat sink fin structure
- 30 x 30mm Fan: Compact 30 x 30mm cooling fan provides forced-air flow across heat sink fins for accelerated convective heat dissipation
- Overheating Prevention: Active cooling system effectively prevents motor overheating during sustained full-throttle, high-load, and high-ambient-temperature RC driving sessions
- Easy Install and Remove: Tool-free clamp-on installation and removal for simple motor-to-motor transfer and maintenance access without permanent chassis modification
- Durable Construction: High-quality aluminium alloy and plastic materials for long-term durability under RC driving vibration and impact conditions
- Safe and Efficient Operation: Sustained lower motor operating temperature protects motor windings, magnets, and bearings from heat-related degradation during extended run sessions
- 2850 and 380 Motor Compatible: Also suitable for 2850 and 380 class RC engine and motor builds within the compatible inside diameter range
Applications
- 540, 550, 3650, and 3660 class RC car and truck motor active cooling during sustained full-throttle, climbing, and high-load driving sessions
- Weight-sensitive 1/10 scale RC builds requiring a lightweight 20g active motor cooling solution without the weight penalty of heavier heat sink and fan assemblies
- Rock crawler and trail truck builds requiring sustained low-speed high-torque motor operation, where passive motor cooling is insufficient for safe continuous operation
- High-ambient-temperature outdoor RC car and truck driving requires active forced-air cooling to sustain safe motor operating temperatures across extended sessions
- 2850 and 380 class RC engine and motor builds requiring a compact 30 x 30mm active cooling assembly within the 35mm inside diameter fit range
- RC car and truck motor upgrade builds pairing higher-power 3650 or 3660 brushless motors with active cooling for sustained peak performance across extended run sessions.
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