{"product_id":"2pcs-8-5mm-20mm-8520-cw-ccw-coreless-motor-dc-3-7v-50000rpm-high-speed-with-cooling-hole-for-rc-drone-quadcopter","title":"2pcs 8.5mm x 20mm 8520 Coreless Motor CW+CCW | DC 3.7V 50000RPM for RC Drone Quadcopter","description":"\u003cp\u003eGet your RC drone or quadcopter back in the air with this set of two high-speed 8520 coreless motors. Each motor is designed for powerful and responsive flight, giving you the thrust you need for agile maneuvers and stable hovering. This pack includes one clockwise (CW) and one counter-clockwise (CCW) motor, making it a direct replacement for many popular micro drone builds.\u003c\/p\u003e\n\u003cp\u003eThese motors run on a standard 3.7V DC battery and reach an impressive 50,000 RPM at no load. They feature a built-in cooling hole to help manage heat during operation, which is essential for maintaining performance during longer flights. The compact 8.5mm diameter and 20mm length fit neatly into tight motor mounts, making them a great choice for DIY projects or repairs.\u003c\/p\u003e\n\u003cp\u003eEach motor is built with high-strength neodymium-iron-boron (NdFeB) magnets for strong torque and reliable power delivery. The output shaft is a flat-sided D-shape, which is ideal for securing propellers or connecting to gear reduction units commonly found in RC helicopters and drones. The wires are color-coded (red-blue and white-black) for easy and correct polarity connection to your flight controller or ESC.\u003c\/p\u003e\n\u003cp\u003eThese motors are designed for high power density, meaning they deliver a lot of thrust for their size. Because of this, they generate heat during use, which is normal for RC model motors operating in well-ventilated environments. They are not designed for continuous, non-stop operation, so allow them to cool between flights for the best lifespan and performance.\u003c\/p\u003e\n\u003cp\u003eKey Features and Benefits\u003c\/p\u003e\u003cp\u003e- CW+CCW Pair: Provides balanced thrust for stable and controlled flight in multi-rotor drones.\u003c\/p\u003e\n\u003cul\u003e\u003cli\u003eHigh Speed 50,000 RPM: Delivers quick throttle response and powerful lift for agile flying.\u003c\/li\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003cli\u003eCooling Hole Design: Helps dissipate heat during operation to maintain consistent performance.\u003c\/li\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003cli\u003eCompact 8520 Size: Fits standard micro drone frames and is easy to install in tight spaces.\u003c\/li\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003cli\u003eD-Shaped Flat Shaft: Offers a secure grip for propellers and gears, preventing slippage during high-speed rotation.\u003c\/li\u003e\u003c\/ul\u003e\n\u003cp\u003eWho Is This For\u003c\/p\u003e\u003cp\u003e- RC drone and quadcopter hobbyists looking for replacement motors for their micro builds.\u003c\/p\u003e\n\u003cul\u003e\u003cli\u003eDIY makers and engineers building custom small-scale flying robots or RC aircraft.\u003c\/li\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003cli\u003eRepair technicians or enthusiasts fixing crashed or worn-out drone motors.\u003c\/li\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003cli\u003eAnyone experimenting with high-speed coreless motors for lightweight RC projects.\u003c\/li\u003e\u003c\/ul\u003e\n\u003cp\u003eUsage Scenario\u003c\/p\u003e\u003cp\u003eAfter a rough landing, your micro quadcopter lost power on one side. You found the original motor was no longer spinning smoothly. You ordered this 2-pack of CW and CCW 8520 motors. Swapping out the damaged motor was straightforward—just solder the new wires to the correct pads on the flight controller. Now your drone lifts off with balanced power and zips through the air with the same agility as when it was new.\u003c\/p\u003e\n\u003cp\u003eMicro Comparison\u003c\/p\u003e\u003cp\u003eWhile some generic motors may offer similar RPM ratings, these 8520 motors are specifically designed with a D-shaped shaft for a more secure connection to drone propellers and gears. The inclusion of a cooling hole is a practical feature that helps manage heat better than many basic solid-shaft motors. This pair is a reliable choice for restoring or enhancing the performance of your micro quadcopter.\u003c\/p\u003e\n\u003cp\u003eSpecifications\u003c\/p\u003e\u003cp\u003eMotor Outer Diameter: 8.5 mm\u003c\/p\u003e\n\u003cp\u003eMotor Length: 20 mm\u003c\/p\u003e\n\u003cp\u003eOutput Shaft Diameter: 1.2 mm (with flat side: 0.95 mm)\u003c\/p\u003e\n\u003cp\u003eOutput Shaft Length: Approximately 5.3 mm\u003c\/p\u003e\n\u003cp\u003eMotor Wire Length: Over 150 mm\u003c\/p\u003e\n\u003cp\u003eMotor Weight: Approximately 5.5 grams\u003c\/p\u003e\n\u003cp\u003eRated Input Voltage: DC 3.7V\u003c\/p\u003e\n\u003cp\u003eBase RPM: 50,000 RPM (at 3.7V no-load)\u003c\/p\u003e\n\u003cp\u003eNo-load Current at 3.7V: 0.26 A\u003c\/p\u003e\n\u003cp\u003ePackage Includes\u003c\/p\u003e\u003cp\u003e- 1 x Red-blue cable motor (CW)\u003c\/p\u003e\n\u003cul\u003e\u003cli\u003e1 x White-black cable motor (CCW)\u003c\/li\u003e\u003c\/ul\u003e","brand":"OnlyTenBucks.com","offers":[{"title":"0","offer_id":52341252391192,"sku":"400005803:50789966","price":10.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0936\/3646\/0824\/files\/Se8a88ec439154e3d9328a2501fa3edb7w.webp?v=1782599632","url":"https:\/\/onlytenbucks.com\/products\/2pcs-8-5mm-20mm-8520-cw-ccw-coreless-motor-dc-3-7v-50000rpm-high-speed-with-cooling-hole-for-rc-drone-quadcopter","provider":"OnlyTenBucks.com","version":"1.0","type":"link"}