N20 Gear Motor 3×3.5mm D-Shaft 15mm Motor Body High Torque Micro DC Geared Motor

Specifications  

• N20 gear motor
• Motor Body Dimensions: 12mm × 10mm cross-section, 15mm length  
• Overall Length (approx.): 28.5mm (including gearbox and shaft)  
• Shaft Type: D-shaped  
• Shaft Diameter: 3mm  
• Shaft Flat-to-Flat: 3.5mm  
• Shaft Length: 9mm (protruding)  
• Gearbox Material: Metal (brass and steel gears)  
• Motor Material: Metal casing  
• Operating Voltage: 3V – 12V DC (commonly used at 6V or 12V)  
• No-Load Speed: Varies by gear ratio (typically 30–600 RPM at rated voltage)  
• Torque: High depending on ratio (up to several kg.cm at stall)  
• Current: Low no-load (~20–80mA), stall current varies by model  
• Weight: Approx. 9–11g  
• Operating Temperature: -10°C to +60°C  

Features  

• Ultra-compact N20 series micro DC geared motor with full metal gearbox  
• D-shaped shaft (3mm diameter, 3.5mm flat-to-flat) for secure non-slip mounting  
• Only 15mm motor body length – ideal for very tight spaces  
• High torque in miniature size suitable for robotics, models, and precision mechanisms  
• Low noise, smooth operation and extended lifespan  
• Reversible (CW/CCW) by reversing polarity  
• Wide voltage range (3V–12V DC) with various gear ratios available  
• Pin terminals for easy soldering and integration  
• The N20 Gear Motor with 3×3.5mm D-Shaft and 15mm motor body is one of the most compact high-torque micro DC geared motors available. Its ultra-short 15mm motor length combined with a durable metal gearbox makes it the perfect choice for space-limited applications such as miniature robots, small RC models, automated toys, camera sliders, medical devices, and intricate DIY electronics projects.  
• The D-cut shaft (3mm round with 3.5mm flat measurement) provides excellent grip for wheels, pulleys, gears, or couplers without the need for additional locking mechanisms. The full metal gear train ensures reliable torque transmission, reduced backlash, and longer service life compared to plastic alternatives.  
• This motor supports 3V to 12V operation, allowing flexibility in power sources from batteries to regulated supplies. Different gear ratios offer a broad selection of speed vs. torque trade-offs – choose slow powerful rotation for lifting or precise control, or higher speeds for quick movements. Bidirectional control is simple via polarity reversal, making it Arduino, Raspberry Pi, and microcontroller-friendly.  
• Lightweight, low-current draw, and quiet performance make it a favorite among hobbyists, makers, and engineers in Bangladesh looking for dependable micro-motors.  

What is the price of N20 Gear Motor 3×3.5mm D-Shaft 15mm Motor Body High Torque Micro DC Geared Motor in Bangladesh?  

The latest price of N20 Gear Motor 3×3.5mm in Bangladesh starts from Price: ৳185.00 taka for 1Pcs Tweezer. You can buy this product at a better and cheaper price from our website and also you can visit our warehouse between work hours 10am to 8pm.  

Buy N20 Gear Motor 3×3.5mm D-Shaft 15mm Motor Body High Torque Micro DC Geared Motor in Bangladesh from online at Dunia.com.bd.  

In Bangladesh, you can get original N20 Gear Motor 3×3.5mm From Dunia.com.bd. We have few collection of latest DC Motor to purchase. Order Electric Motor Online at our website Or Visit our warehouse to get your product at lowest price.

FAQ  

1. What is the shaft dimension of this N20 gear motor?
   It features a D-shaped shaft with 3mm diameter and 3.5mm flat-to-flat, protruding approximately 9mm.
2. How long is the motor body?
   The motor body measures only 15mm in length, making it extremely compact.
3. What voltage range does it support?
   Operates reliably from 3V to 12V DC; most users run it at 6V or 12V.
4. Is the gearbox metal or plastic?
   It has a full metal gearbox (brass and steel) for superior strength and durability.
5. Can I use this for small robot projects?
   Yes – it’s very popular in mini sumo bots, line followers, robotic arms, and small wheeled vehicles.
6. Does it rotate in both directions?
   Yes, reverse the power polarity to change direction (clockwise/counterclockwise).
7. What speeds are available?
   Speed depends on gear ratio; common options range from 30 RPM (high torque) to 600 RPM (higher speed).
8. Is it suitable for high-torque needs in small spaces?
   Absolutely – the metal gears deliver strong torque even in this tiny form factor.
9. How do I attach things to the shaft?
   The D-shape ensures secure press-fit for gears, wheels, or hubs without slipping.
10. Where to buy this compact N20 motor in Bangladesh?
    Available at Dunia BD with quick delivery across Dhaka and nationwide – check RPM variants.