Compact speed electric motors available in multiple miniature sizes and specifications for precision applications. Each motor delivers reliable rotational performance in a small, enclosed package and supports voltages from 3V to 5.0V. Key benefits Versatile: multiple model sizes from 4 mm to 10 mm diameter cover a wide range of smallmechanism needs. speed and stable operation: rated speeds between 28,500 RPM and 70,000 RPM provide fast response for micro devices. Easy integration: standard shaft diameters and lengths simplify coupling to gears, propellers, wheels, or pulleys. Efficient and durable: permanent magnet construction, brushless commutation, and totally enclosed housing for consistent performance. Main specifications Available models: 412, 612, 614, 716, 720, 8520, 1015, 1020 Voltage range: 3V to 5.0V Construction: permanent magnet Commutation: brushless Protection: totally enclosed housing Efficiency class: IE 2 Model number reference: M720 Continuous current (M720): 0.025 to 0.045 A Ordering: 1 = 1 pcs Motor Size note: 10PCS MOTOR 1020 Individual motor dimensions and performance Motor 412: diameter 4 mm, length 12 mm, shaft diameter 0.7 mm, shaft length 4.2 mm, nominal voltage 3.7 VDC, speed 70,000 RPM Motor 612: diameter 6 mm, length 12 mm, shaft diameter 0.8 mm, shaft length 4.5 mm, nominal voltage 3.7 VDC, speed 50,000 RPM Motor 614: diameter 6 mm, length 14 mm, shaft diameter 0.8 mm, shaft length 4.2 mm, nominal voltage 3.7 VDC, speed 55,000 RPM Motor 716: diameter 7 mm, length 16.6 mm, shaft diameter 0.8 mm, shaft length 7 mm, nominal voltage 3.7 VDC, speed 50,000 RPM Motor 720: diameter 7 mm, length 20 mm, shaft diameter 1.0 mm, shaft length 6.3 mm, nominal voltage 3.7 VDC, speed 50,000 RPM Motor 8520: diameter 8.5 mm, length 20 mm, shaft diameter 1.0 mm, shaft length 5 mm, nominal voltage 3.7 VDC, speed 46,000 RPM Motor 1015: diameter 10 mm, length 15 mm, shaft diameter 1.0 mm, shaft length 6 mm, nominal voltage 5 VDC, speed 28,500 RPM Motor 1020: diameter 10 mm, length 20 mm, shaft diameter 1.2 mm, shaft length 5 mm, nominal voltage 3.7 VDC, speed 50,000 RPM Typical applications Micro drones and multirotor propulsion where compact, RPM motors are needed for thrust and responsiveness. Small robotics and mobile mechanisms requiring precise, speed drive for wheels, gear trains, or actuators. Hobby and model projects such as remotecontrolled vehicles, miniature fans, or pump drives that demand compact footprint and reliable performance. Integration tips Match the motor nominal voltage to your power source within the 3V to 5.0V range for speed and longevity. Confirm shaft diameter and length before selecting couplings, propellers, or gears to ensure secure mounting. Use appropriate motor drivers or ESCs compatible with brushless commutation and the continuous current ratings. This motor family offers compact dimensions, clear specification choices, and dependable performance for a range of smallscale electromechanical designs.