20mm 6V 12V 24V Mini Powerful Gear Motor Model NFP-GM20-180SH
$18.50
Powerful torque and durable construction define our 20mm 6V 12V 24V Mini Powerful Gear Motor. Perfect for heavy-duty applications, order yours today!
Notice: this motor model need to make new ones that would take extra 2-3 weeks.
Spur Drive Gearbox with Motor Spec Sheet
Key Features
First, this 20mm spur gear motor provides high torque in a compact body. Therefore, it works well in drive systems that need useful power but have limited installation space.
Also, the metal gearbox provides strong and stable power transfer. In addition, the motor offers 6V, 12V, and 24V DC options. As a result, you can match the motor to many different power systems.
- High torque output for demanding loads
- Strong metal gearbox for long service life
- 6V, 12V, and 24V DC options
- Low power use for compact systems
- Small 20mm gearbox for tight spaces
- Multiple gear ratios for different speed needs
Single Motor Technical Data
Next, compare the three base motor options below. For example, you can select the voltage first and then compare speed, current, torque, and output power.
| Motor Model | NFP-180SH-18140 | NFP-180SH-09450 | NFP-180SH-10400 |
|---|---|---|---|
| Voltage | 6.0V DC | 12.0V DC | 24.0V DC |
| No-load Speed | 7,000 RPM | 4,400 RPM | 10,200 RPM |
| No-load Current | 90mA | 25mA | 30mA |
| At Maximum Efficiency Speed | 5,300 RPM | 3,500 RPM | 8,700 RPM |
| At Maximum Efficiency Torque | 20g.cm | 13g.cm | 20g.cm |
| At Maximum Efficiency Current | 450mA | 90mA | 140mA |
| Output Power | 1.10W | 0.50W | 1.80W |
| Stall Torque | 85g.cm | 60g.cm | 155g.cm |
| Stall Current | 1.90A | 0.35A | 0.85A |
Motor with Gearbox NFP-GM20-180SH-18140 Technical Data
First, this 6V DC motor provides no-load output speeds from 14 RPM to 230 RPM. Also, the available ratios let you balance output speed and torque for different loads.
| Ratio | Gearbox Length | No-load Speed | Rated Speed | Rated Torque | Instant Torque |
|---|---|---|---|---|---|
| 29:1 | 15.9mm | 230 RPM | 180 RPM | 0.4kg.cm | 1.5kg.cm |
| 31:1 | 15.9mm | 215 RPM | 170 RPM | 0.4kg.cm | 1.6kg.cm |
| 56:1 | 17.4mm | 120 RPM | 95 RPM | 0.7kg.cm | 2.8kg.cm |
| 73:1 | 17.4mm | 90 RPM | 73 RPM | 0.9kg.cm | 3.7kg.cm |
| 107:1 | 18.9mm | 62 RPM | 50 RPM | 1.3kg.cm | 5.0kg.cm |
| 182:1 | 18.9mm | 37 RPM | 29 RPM | 2.2kg.cm | 5.0kg.cm |
| 268:1 | 20.4mm | 25 RPM | 20 RPM | 3.0kg.cm | 5.0kg.cm |
| 349:1 | 20.4mm | 19 RPM | 16 RPM | 3.0kg.cm | 5.0kg.cm |
| 456:1 | 20.4mm | 15 RPM | 13 RPM | 3.0kg.cm | 5.0kg.cm |
| 488:1 | 20.4mm | 14 RPM | 13 RPM | 3.0kg.cm | 5.0kg.cm |
Note: all reduced no-load speeds have a tolerance of ±15%.
Therefore, choose a lower ratio when your design needs more speed. In contrast, use a higher ratio when slower output and higher torque are more important.
Motor with Gearbox NFP-GM20-180SH-09450 Technical Data
Next, this 12V DC version offers lower current and a wide choice of output speeds. In addition, its higher ratios provide slow and controlled motion for compact mechanisms.
| Ratio | Gearbox Length | No-load Speed | Rated Speed | Rated Torque | Instant Torque |
|---|---|---|---|---|---|
| 29:1 | 15.9mm | 145 RPM | 120 RPM | 0.23kg.cm | 1.0kg.cm |
| 31:1 | 15.9mm | 135 RPM | 113 RPM | 0.24kg.cm | 1.1kg.cm |
| 56:1 | 17.4mm | 75 RPM | 62 RPM | 0.44kg.cm | 2.0kg.cm |
| 73:1 | 17.4mm | 57 RPM | 48 RPM | 0.6kg.cm | 2.6kg.cm |
| 107:1 | 18.9mm | 39 RPM | 33 RPM | 0.8kg.cm | 3.8kg.cm |
| 182:1 | 18.9mm | 23 RPM | 19 RPM | 1.4kg.cm | 5.0kg.cm |
| 268:1 | 20.4mm | 16 RPM | 13 RPM | 1.9kg.cm | 5.0kg.cm |
| 349:1 | 20.4mm | 12 RPM | 10 RPM | 2.3kg.cm | 5.0kg.cm |
| 456:1 | 20.4mm | 9 RPM | 8 RPM | 3.0kg.cm | 5.0kg.cm |
| 488:1 | 20.4mm | 9 RPM | 8 RPM | 3.0kg.cm | 5.0kg.cm |
Note: all reduced no-load speeds have a tolerance of ±15%.
As a result, this version covers both medium-speed and very low-speed applications. Also, compare the rated torque with your actual load before choosing a ratio.
Motor with Gearbox NFP-GM20-180SH-10400 Technical Data
Finally, the 24V DC version provides the highest base motor speed and output power. Therefore, it offers higher gearbox output speeds while keeping the same compact 20mm gear structure.
| Ratio | Gearbox Length | No-load Speed | Rated Speed | Rated Torque | Instant Torque |
|---|---|---|---|---|---|
| 29:1 | 15.9mm | 340 RPM | 300 RPM | 0.4kg.cm | 3.1kg.cm |
| 31:1 | 15.9mm | 310 RPM | 280 RPM | 0.4kg.cm | 3.4kg.cm |
| 56:1 | 17.4mm | 175 RPM | 155 RPM | 0.7kg.cm | 5.2kg.cm |
| 73:1 | 17.4mm | 135 RPM | 120 RPM | 0.9kg.cm | 5.0kg.cm |
| 107:1 | 18.9mm | 95 RPM | 81 RPM | 1.3kg.cm | 5.0kg.cm |
| 182:1 | 18.9mm | 55 RPM | 48 RPM | 2.2kg.cm | 5.0kg.cm |
| 268:1 | 20.4mm | 38 RPM | 32 RPM | 3.0kg.cm | 5.0kg.cm |
| 349:1 | 20.4mm | 29 RPM | 26 RPM | 3.0kg.cm | 5.0kg.cm |
| 456:1 | 20.4mm | 22 RPM | 20 RPM | 3.0kg.cm | 5.0kg.cm |
| 488:1 | 20.4mm | 21 RPM | 20 RPM | 3.0kg.cm | 5.0kg.cm |
Note: all reduced no-load speeds have a tolerance of ±15%.
In short, select the voltage first. Next, compare the ratio, rated speed, and rated torque to find the right setup for your application.
24V Electric Motor with Gearbox Outline Drawing
The compact 20mm gearbox makes this motor suitable for many small drive systems. Also, its D-shaped output shaft provides a secure connection to gears, wheels, couplings, and other mechanical parts.

Typical Applications
For example, this 20mm 6V, 12V, and 24V mini gear motor can support many types of compact equipment:
- Robotics: Robotic arms, grippers, mobile robots, and small drive systems.
- Automation: Conveyor belts, small elevators, and automated mechanisms.
- RC Equipment: Remote-controlled vehicles and drones.
- Industrial Equipment: Valve actuators, pumps, and motorized gauges.
- Consumer Products: Electric locks, toys, window blinds, desks, and chairs.
- Automotive Systems: Power mirrors, electric seats, and small winches.
Therefore, the motor can fit both battery-powered products and fixed DC systems. However, always confirm the required voltage, load, and duty cycle before final selection.
Small Gearbox with Motor Bulk Order
Compact Design and Custom Options
Next, the 20mm diameter helps save installation space. At the same time, the spur gearbox provides steady and controlled rotary motion for small mechanical systems.
In addition, you can select from several voltage, speed, and gear ratio options. Therefore, the motor can support both prototype projects and bulk production needs.

Related Motor Models & Options
If you require precise step control instead of continuous DC rotation, consider the 20mm Geared Stepper Motor 12V Model NFP-20BY-200. For example, a stepper motor can help with controlled position and angle movement.
If your design needs a smaller gearbox, check the 12mm Spur Metal Gear Motor Model NFP-GM12T-050. Therefore, it can fit projects with tighter space limits.
Finally, for applications that need a larger motor and higher torque, explore the 25mm DC Reduction Gear Motor Model NFP-GM25-BK370.
Keywords:
small electric motor and gearbox, single output shaft gearbox motor, 12v dc motor with gearbox, dc motor gearbox high torque
Sampling quantities for stocked models are available for ordering directly from us online.
Engineering & Manufacturing:
Please contact one of our Sales Engineers for a quotation for production and consultation for customization and integration services.
Payment Method:
Payment methods : Paypal or T/T
Shipping Method:
1.Delivery: DHL door to door 5-7days.
2.Item will be shipped within 1-3 business days after the payment.
3.If you haven’t received the item on the Delivery Time, pls contact us by email if you have any questions. Normally, we will give you a reply within 24hours, if not, pls check the spam of your email box. We will do our best to help you solve the problems.
4.Please make sure your address is matched with the finally shipping address before you pay.
5.In order to ensure you receive your order tax free upon import, we will declare it with a lower value, pls be noted ,thanks!
FAQ - Frequently Asked Questions
Q: If customized, what information should you provide?
A: You need to provide the basic specification of the motor, such as: Dimensions, Sizes Applications, Voltage, Speed and Torque. It's better to offer application prototype drawings to us if possible.
Q: What's your main motors?
A: Diameter 4mm~42mm Dc Micro Motor And Gear Motor, Auto Dc Motor, Electric Motor, Gear Motor, Mini Dc Motor, Brush Dc Motor, Brushless Dc Motor, Spur Gear Motor, Micro Motor, Vibration Motor Etc.
Q: What's the main application of the micro dc motor?
A: Our mini DC motors are widely used in Home Applications, Office Equipment, Health-Care Application, Sanitation Industry, High-Class Toy, Banking System, Electronic and Electrical Tools, Automation Industry, Bank Equipments, Payment Equipments, Vending Machines, Power Door Lock, Electric Door Lock.
Free Shipping Site-wide When You Spend More Than $150
Still Can't Find Ideal Motors?
Get A Quote Within 8 Hours Contact Now! Any question about Micro DC Motor, Spec, Data-Sheet, Quote...
If you want a custom lead wire connection of the water resistant vibration motors. Such as alternate lead wire length & strip lengths, with a connector (e.g. Molex, JST). You can contact us from the footer form, tell us your need. Any problems will be taken seriously and will be answered professionally, so pls do not hesitate to contact us by the footer form.













Vanshika dubey –
I was deeply impressed by the performance of the Mini Mighty Gear Motor. Despite its compact size, it delivers plenty of power, and the gear mechanism ensures smooth operation.
David Wilson –
The high torque brushed dc gear motor worked perfectly for my firearm moving target project, running smoothly on a 6V battery. It’s easy to reverse by simply changing the polarity of the leads, and the motor feels very rugged and durable. I would definitely buy it again!