3V 140 DC Motor Small Electric Motor for DIY Projects Arduino Robotics RC Car Robot Smart Car

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Power up your next DIY project with this compact and versatile 3V DC Hobby Motor! Commonly known as a 130 or 140-size motor, it’s the perfect workhorse for small robots, model cars, toy modifications, science fair experiments, and other electronic creations. Operating optimally at 3V, it delivers a good balance of speed and torque for its size. It’s super easy to get started – just connect a suitable DC power source (like 2 AA batteries) to the solder terminals at the back. This motor provides a great, low-cost way to add motion to your projects. Please note that specific performance characteristics like speed and current draw can vary slightly between individual motors of this type.
 
 
⭐ Specification
– Model: Generic 140-Size Type
– Operating Voltage: 1.5V-4.5V DC (Nominal 3V)
– No-Load Speed: Approx. 15,000 RPM @ 3V (Typical, actual speed may vary)
– No-Load Current: Approx. 80-150mA @ 3V (Typical)
– Stall Current: Approx. 1.0A – 1.8A @ 3V (Estimated, handle with care/current limiting)
– Dimensions (Body): Approx. 25mm x 20mm x 15mm (L*W*H, excluding shaft and terminals)
– Shaft Diameter: 2mm
– Shaft Length: Approx. 8-10mm
– Weight: Approx. 20g
– Connection: Rear Solder Terminals
 
 
⚒️ Interesting Project
– Build a Mini Racing Bot: Learn basic chassis design and power transmission.
– Create a Simple Electric Fan: Experiment with propellers and airflow.
– Motor Speed Control Project: Use PWM with Arduino/Raspberry Pi to vary speed.
 
 
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