12mm Metal Gear Motor Model NFP-GM12-N20V-EN-M4
$15.00
Unlock innovation with the reliable 12mm N20 gear motor with encoder lead screw. Its simple mounting makes your projects easier! ⚙️ Buy now!
55mm Shaft DC Gear Motor with Dust Cover Datasheet
The NFP-GM12-N20V-EN-M4 is an N20 speed reduction gearbox motor with encoder, dust cover, and a 55mm M4 shaft. It supports 3V, 6V, and 12V DC power options.
First, the M4 shaft design can support wheels, screw-drive parts, and compact transmission parts. Also, the long shaft provides more leverage in small mechanisms. Therefore, it is useful for compact projects that need torque, feedback, and easy mounting.
In addition, the motor supports CW and CCW rotation. As a result, it can support forward and reverse motion in small control systems.
Main Product Features
- First, M4 shaft: The motor uses an M4 standard shaft with 55mm length.
- In addition, encoder feedback: The Hall encoder supports speed and position feedback.
- Also, voltage options: The motor supports 3V, 6V, and 12V DC versions.
- Next, compact weight: The motor weighs approximately 17g.
- Finally, dust cover design: The cover helps protect the gearbox and encoder area.
General Motor Data
Next, the table below helps users check shaft size, voltage, speed range, current, rotation, and weight. Therefore, it is easier to confirm whether this motor fits the final product design.
| Model | NFP-GM12-N20V-EN-M4 |
|---|---|
| Shaft Diameter | M4 standard shaft |
| Shaft Length | 55mm |
| Rated Voltage | 3V / 6V / 12V DC |
| No-load Speed | 20rpm – 2,200rpm |
| No-load Current | ≤0.045A / ≤0.06A |
| Rotation | CW / CCW |
| Weight | appr. 17g |
Also, the 55mm shaft can support special wheel, screw, and linkage designs. As a result, this motor is suitable for compact motion projects that need a longer shaft.
Model: NFP-GM12-N20V-EN-M4, 3V DC, A06 Type
First, the 3V DC A06 type is useful for low-voltage battery systems. Also, the table below shows how each ratio changes output pulses, speed, current, torque, and stall data.
| Ratio | Output Pulses | No-load Current | No-load Speed | Rated Current | Rated Speed | Rated Torque | Stall Current | Stall Torque |
|---|---|---|---|---|---|---|---|---|
| 10:1 | 29.04 | ≤0.045A | 780rpm | ≤0.1A | 450rpm | 0.03kg.cm | 0.3A | 0.08kg.cm |
| 20:1 | 38.71 | ≤0.045A | 400rpm | ≤0.1A | 230rpm | 0.06kg.cm | 0.3A | 0.16kg.cm |
| 30:1 | 88.41 | ≤0.045A | 265rpm | ≤0.1A | 150rpm | 0.1kg.cm | 0.3A | 0.23kg.cm |
| 50:1 | 153.3 | ≤0.045A | 155rpm | ≤0.1A | 90rpm | 0.17kg.cm | 0.3A | 0.4kg.cm |
| 100:1 | 297.9 | ≤0.045A | 77rpm | ≤0.1A | 45rpm | 0.35kg.cm | 0.3A | 0.75kg.cm |
| 150:1 | 452.87 | ≤0.045A | 52rpm | ≤0.1A | 30rpm | 0.5kg.cm | 0.3A | 1.1kg.cm |
| 210:1 | 629.27 | ≤0.045A | 37rpm | ≤0.1A | 21rpm | 0.7kg.cm | 0.3A | 1.5kg.cm |
| 298:1 | 893.7 | ≤0.045A | 26rpm | ≤0.1A | 15rpm | 1kg.cm | 0.3A | 2.8kg.cm |
| 380:1 | 1,137.47 | ≤0.045A | 20rpm | ≤0.1A | 12rpm | 1.2kg.cm | 0.3A | 3.5kg.cm |
Note: All reduced no-load speeds have a tolerance of ±15%.
Also, the 380:1 ratio gives the lowest no-load speed and highest stall torque in the 3V table. Therefore, it is useful for slow and strong low-voltage motion.
Model: NFP-GM12-N20V-EN-M4, 6V DC, A06 Type
Next, the 6V DC A06 type provides higher speed and stronger torque than the 3V version. As a result, it is suitable for compact systems that need more output power.
| Ratio | Output Pulses | No-load Current | No-load Speed | Rated Current | Rated Speed | Rated Torque | Stall Current | Stall Torque |
|---|---|---|---|---|---|---|---|---|
| 10:1 | 29.04 | ≤0.06A | 1,550rpm | ≤0.17A | 900rpm | 0.07kg.cm | 0.6A | 0.16kg.cm |
| 20:1 | 38.71 | ≤0.06A | 800rpm | ≤0.17A | 460rpm | 0.14kg.cm | 0.6A | 0.3kg.cm |
| 30:1 | 88.41 | ≤0.06A | 530rpm | ≤0.17A | 300rpm | 0.2kg.cm | 0.6A | 0.5kg.cm |
| 50:1 | 153.3 | ≤0.06A | 310rpm | ≤0.17A | 180rpm | 0.35kg.cm | 0.6A | 0.8kg.cm |
| 100:1 | 297.9 | ≤0.06A | 155rpm | ≤0.17A | 90rpm | 0.7kg.cm | 0.6A | 1.5kg.cm |
| 150:1 | 452.87 | ≤0.06A | 105rpm | ≤0.17A | 60rpm | 1kg.cm | 0.6A | 2.2kg.cm |
| 210:1 | 629.27 | ≤0.06A | 75rpm | ≤0.17A | 42rpm | 1.4kg.cm | 0.6A | 2.8kg.cm |
| 298:1 | 893.7 | ≤0.06A | 52rpm | ≤0.17A | 30rpm | 2kg.cm | 0.6A | 3kg.cm |
| 380:1 | 1,137.47 | ≤0.06A | 41rpm | ≤0.17A | 24rpm | 2.5kg.cm | 0.6A | 4kg.cm |
Note: All reduced no-load speeds have a tolerance of ±15%.
In addition, the 6V A06 type reaches 4kg.cm stall torque at 380:1 ratio. Therefore, it is useful for stronger low-speed gearbox output.
Model: NFP-GM12-N20V-EN-M4, 6V DC, A12 Type
Furthermore, the 6V DC A12 type provides lower current than the 6V A06 type. Also, it gives another speed and torque range for compact control systems.
| Ratio | Output Pulses | No-load Current | No-load Speed | Rated Current | Rated Speed | Rated Torque | Stall Current | Stall Torque |
|---|---|---|---|---|---|---|---|---|
| 10:1 | 29.04 | ≤0.045A | 1,100rpm | ≤0.1A | 700rpm | 0.05kg.cm | 0.2A | 0.07kg.cm |
| 20:1 | 38.71 | ≤0.045A | 500rpm | ≤0.1A | 350rpm | 0.09kg.cm | 0.2A | 0.12kg.cm |
| 30:1 | 88.41 | ≤0.045A | 330rpm | ≤0.1A | 200rpm | 0.12kg.cm | 0.2A | 0.2kg.cm |
| 50:1 | 153.3 | ≤0.045A | 200rpm | ≤0.1A | 120rpm | 0.2kg.cm | 0.2A | 0.32kg.cm |
| 100:1 | 297.9 | ≤0.045A | 100rpm | ≤0.1A | 65rpm | 0.4kg.cm | 0.2A | 0.7kg.cm |
| 150:1 | 452.87 | ≤0.045A | 65rpm | ≤0.1A | 45rpm | 0.6kg.cm | 0.2A | 0.9kg.cm |
| 210:1 | 629.27 | ≤0.045A | 47rpm | ≤0.1A | 30rpm | 0.8kg.cm | 0.2A | 1.2kg.cm |
| 298:1 | 893.7 | ≤0.045A | 33rpm | ≤0.1A | 20rpm | 1.15kg.cm | 0.2A | 1.5kg.cm |
| 380:1 | 1,137.47 | ≤0.045A | 26rpm | ≤0.1A | 17rpm | 1.5kg.cm | 0.2A | 2kg.cm |
Note: All reduced no-load speeds have a tolerance of ±15%.
Also, the 6V A12 type has lower stall current than the 6V A06 type. As a result, it is useful for systems that need lower-current operation.
Model: NFP-GM12-N20V-EN-M4, 12V DC, A12 Type
Finally, the 12V DC A12 type provides the highest speed range in this product group. Therefore, it is suitable for compact systems that need faster output from the same gearbox structure.
| Ratio | Output Pulses | No-load Current | No-load Speed | Rated Current | Rated Speed | Rated Torque | Stall Current | Stall Torque |
|---|---|---|---|---|---|---|---|---|
| 10:1 | 29.04 | ≤0.06A | 2,200rpm | ≤0.22A | 1,000rpm | 0.1kg.cm | 0.4A | 0.15kg.cm |
| 20:1 | 38.71 | ≤0.06A | 1,100rpm | ≤0.22A | 500rpm | 0.15kg.cm | 0.4A | 0.28kg.cm |
| 30:1 | 88.41 | ≤0.06A | 730rpm | ≤0.22A | 380rpm | 0.2kg.cm | 0.4A | 0.4kg.cm |
| 50:1 | 153.3 | ≤0.06A | 440rpm | ≤0.22A | 230rpm | 0.4kg.cm | 0.4A | 0.65kg.cm |
| 100:1 | 297.9 | ≤0.06A | 220rpm | ≤0.22A | 130rpm | 0.8kg.cm | 0.4A | 1.3kg.cm |
| 150:1 | 452.87 | ≤0.06A | 145rpm | ≤0.22A | 85rpm | 1.2kg.cm | 0.4A | 1.9kg.cm |
| 210:1 | 629.27 | ≤0.06A | 105rpm | ≤0.22A | 60rpm | 1.6kg.cm | 0.4A | 2.5kg.cm |
| 298:1 | 893.7 | ≤0.06A | 73rpm | ≤0.22A | 42rpm | 2.3kg.cm | 0.4A | 3kg.cm |
| 380:1 | 1,137.47 | ≤0.06A | 58rpm | ≤0.22A | 34rpm | 3kg.cm | 0.4A | 4kg.cm |
Note: All reduced no-load speeds have a tolerance of ±15%.
Also, the 12V A12 type reaches 2,200rpm at 10:1 ratio and 4kg.cm stall torque at 380:1 ratio. As a result, it can support both faster motion and strong low-speed output.
N20 Speed Reduction Gearbox Motor with Screw Thread Shaft Dimension
First, the M4 55mm threaded shaft provides more leverage and supports compact screw-drive mechanisms. Therefore, it can help increase useful torque output in small linear motion designs.
In addition, this motor has a robust design for RC hobby applications and other outdoor uses. As a result, it can support hill climbing and small high-torque drive structures when the load is within the correct range.
Dimension Drawing and Design Benefits
- First, long M4 shaft: The 55mm shaft supports special mechanical layouts.
- In addition, threaded output: The screw shaft can support compact linear motion.
- Also, hill climbing support: Strong gearbox torque can help small RC systems climb slopes.
- Next, compact gearbox: The N20 gearbox body helps save installation space.
- Finally, reversible output: CW and CCW rotation can support forward and reverse movement.
Magnetic Hall Encoder Wiring Diagram
Next, the encoder wiring diagram helps users check the motor and encoder connection before testing. Therefore, it can reduce wiring mistakes during setup.
In addition, this motor can serve as a replacement part for electrical and testing equipment. As a result, the improved bearing and gear motor structure can help extend the service life of the final device.
Encoder Specifications
Also, the encoder specification table helps users check encoder type, pulse output, voltage, interface, signal type, response frequency, and pole count. Therefore, it is easier to match the motor with an MCU or control board.
| Encoder Type | AB Dual-phase Incremental Magnetic Hall Encoder |
|---|---|
| Line Speed | Basic Pulse 7PPR x Gear Reduction Ratio |
| Supply Voltage | 3.3V / 5V DC |
| Basic Function | Built-in Pull-up Shaping Resistor, Direct Connection to MCU |
| Interface Type | ZH1.5-6PIN (Standard Connection Cable) |
| Output Signal Type | Square Wave AB Phase |
| Response Frequency | 100KHz |
| Base Pulse Count | 7 PPR |
| Magnetic Ring Trigger Pole Number | 14 Poles (7 Pairs) |
In addition, the encoder supports AB phase square wave output and direct MCU connection. As a result, it can provide speed and position feedback for compact control systems.
Why Choose Our Mini DC Gear Motor?
First, this mini DC gear motor delivers high torque at low speeds while consuming less energy. Therefore, it is useful for compact battery-powered systems and small automation products.
In addition, the motor is built with durable materials and an improved bearing system. As a result, it is designed for long service life under suitable operating conditions.
Main Selection Benefits
- First, powerful yet efficient: The motor provides high torque at low speed with controlled energy use.
- In addition, built to last: Durable materials and improved bearings help support longer service life.
- Also, versatile use: The motor can support new projects and replacement applications.
- Next, compact size: The N20 structure fits many small devices and test tools.
- Finally, encoder control: Feedback output supports better speed and position control.
Typical Applications
Finally, this N20 gear motor is suitable for compact products that need high torque, encoder feedback, and a long threaded shaft. For example, it can work in RC hobby projects, small robots, test tools, and replacement motor assemblies.
- RC hobby applications
- Small robots
- Testing equipment
- Electrical equipment replacement
- Miniature linear motion systems
- Battery-powered devices
- Compact automation projects
In short, the NFP-GM12-N20V-EN-M4 gear motor is a good fit for products that need 3V, 6V, or 12V DC power, 55mm M4 threaded shaft, magnetic Hall encoder feedback, compact N20 gearbox size, and reliable low-speed torque.
Keywords: n20 gear motor, 12v gear motor, dc motor with encoder, electric gear motor, dc motor and gearbox
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Shipping:
1.Delivery: DHL/FedEx 3-5 days.
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 24 hours, if not, pls check the spam of your email box. We will do our best to help you solve the problems.
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FAQ
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.



Maya Alvarado –
I am very happy with its performance! This motor is compact but powerful enough for my small-scale automation tasks.
Joanna Riggs –
I used this metal gear motor to turn the gears and it worked great. The shaft needed to be long and stable, and it would shake a bit when the load was increased, but it generally worked fine.🤞