12mm Worm Gear Motor Model NFP-WG1218S-N20-EN-OD
$18.50
Discover the N20 right angle gearbox with encoder, designed for high precision applications and featuring a self-locking mechanism. Ensure stability now!
| Quantity | Price | Discount |
|---|---|---|
| 1 - 9 | $18.50 | 0% |
| 10 - 49 | $11.70 | 36.76% |
| 50 - 99 | $9.90 | 46.49% |
| 100+ | $9.50 | 48.65% |
Affordable Worm Drive Motor with Magnetic Encoder Datasheet
First, the NFP-WG1218S-N20-EN is an affordable worm drive motor with magnetic encoder. Also, it is a compact N20 worm gear motor for small drive systems that need position holding and feedback control.
In addition, the worm gearbox has a self-locking mechanism. Therefore, it helps prevent back-driving and keeps the output position more stable when the load tries to move the shaft backward.
Moreover, this self-locking feature is useful in high precision products. As a result, the motor is a good choice for small systems where holding a position is important.
Main Product Features
- First, self-locking gearbox: The worm gear helps prevent back-driving.
- In addition, magnetic encoder: The Hall encoder gives AB phase feedback.
- Also, compact N20 size: The small body helps save space in tight products.
- Next, wide voltage range: The motor supports 3V, 6V, and 12V DC.
- Finally, CW and CCW rotation: The motor supports forward and reverse motion.
Basic Motor Specifications
First, the table below shows the main motor data. Also, it helps users check shaft size, voltage, speed range, rotation, and weight before choosing a ratio.
| Model | NFP-WG1218S-N20-EN |
|---|---|
| Shaft Diameter | 3mm |
| Shaft Length | 8mm |
| Rated Voltage | 3V DC / 6V DC / 12V DC |
| No-load Speed | 11RPM – 550RPM |
| Rotation | CW / CCW |
| Weight | appr. 15g |
As a result, this compact worm geared motor can fit small products that need low speed, position holding, and encoder feedback. Moreover, the 3mm shaft helps connect small gears, levers, and drive parts.
Model: NFP-WG1218S-N20-EN, 3V DC, B45 Type
First, this 3V DC B45 type version is useful for low-voltage systems. Also, the table below helps users compare ratio, Hall signal number, current, speed, torque, and stall data.
Therefore, users can choose a lower ratio for higher speed. In addition, users can choose a higher ratio for stronger slow-speed output and more Hall signal counts.
| Ratio | Hall Signal No. (7× Ratio) | No-load Current | No-load Speed | Rated Current | Rated Speed | Rated Torque | Stall Current | Stall Torque |
|---|---|---|---|---|---|---|---|---|
| 42:1 | 294 | ≤0.035A | 260rpm | ≤0.15A | 195rpm | 0.03kg.cm | ≤0.35A | ≥0.07kg.cm |
| 118:1 | 826.469 | ≤0.035A | 90rpm | ≤0.15A | 65rpm | 0.08kg.cm | ≤0.35A | ≥0.2kg.cm |
| 236:1 | 1,652.931 | ≤0.035A | 45rpm | ≤0.15A | 33rpm | 0.16kg.cm | ≤0.35A | ≥0.4kg.cm |
| 302:1 | 2,112.082 | ≤0.035A | 35rpm | ≤0.15A | 26rpm | 0.2kg.cm | ≤0.35A | ≥0.5kg.cm |
| 603:1 | 4,224.164 | ≤0.035A | 18rpm | ≤0.15A | 13rpm | 0.4kg.cm | ≤0.35A | ≤1kg.cm |
| 1,030:1 | 7,212.8 | ≤0.035A | 11rpm | ≤0.15A | 7rpm | 0.65kg.cm | ≤0.35A | ≤1.5kg.cm |
Note: All reduced no-load speeds have a tolerance of ±15%.
As a result, this 3V B45 type version covers speeds from 11rpm to 260rpm. Moreover, the 1,030:1 ratio gives the highest Hall signal number and the strongest rated torque in this table.
Model: NFP-WG1218S-N20-EN, 6V DC, B45 Type
Next, this 6V DC B45 type version gives higher speed and torque than the 3V version. Also, it is useful for 6V systems that need stronger output in a compact worm gearbox.
Therefore, users can choose this version for small products with a 6V power supply. In addition, the high-ratio options support slow motion and position holding.
| Ratio | Hall Signal No. (7× Ratio) | No-load Current | No-load Speed | Rated Current | Rated Speed | Rated Torque | Stall Current | Stall Torque |
|---|---|---|---|---|---|---|---|---|
| 42:1 | 294 | ≤0.08A | 530rpm | ≤0.2A | 390rpm | 0.06kg.cm | ≤0.65A | ≥0.16kg.cm |
| 118:1 | 826.469 | ≤0.08A | 190rpm | ≤0.2A | 140rpm | 0.16kg.cm | ≤0.65A | ≥0.4kg.cm |
| 236:1 | 1,652.931 | ≤0.08A | 94rpm | ≤0.2A | 70rpm | 0.32kg.cm | ≤0.65A | ≥0.8kg.cm |
| 302:1 | 2,112.082 | ≤0.08A | 74rpm | ≤0.2A | 55rpm | 0.4kg.cm | ≤0.65A | ≥1.1kg.cm |
| 603:1 | 4,224.164 | ≤0.08A | 37rpm | ≤0.2A | 27rpm | 0.8kg.cm | ≤0.65A | ≤2kg.cm |
| 1,030:1 | 7,212.8 | ≤0.08A | 22rpm | ≤0.2A | 15rpm | 1.3kg.cm | ≤0.65A | ≤3kg.cm |
Note: All reduced no-load speeds have a tolerance of ±15%.
In short, this 6V B45 type version covers speeds from 22rpm to 530rpm. Also, the 1,030:1 ratio gives the strongest rated torque in this table.
Model: NFP-WG1218S-N20-EN, 6V DC, A35 Type
Furthermore, this 6V DC A35 type version gives low current and stable slow-speed output. Therefore, it is useful for small 6V products that need lower current draw.
In addition, the Hall signal number increases with the gear ratio. As a result, higher ratios provide more feedback counts for speed and position control.
| Ratio | Hall Signal No. (7× Ratio) | No-load Current | No-load Speed | Rated Current | Rated Speed | Rated Torque | Stall Current | Stall Torque |
|---|---|---|---|---|---|---|---|---|
| 42:1 | 294 | ≤0.035A | 275rpm | ≤0.08A | 195rpm | 0.02kg.cm | ≤0.2A | ≥0.07kg.cm |
| 118:1 | 826.469 | ≤0.035A | 98rpm | ≤0.08A | 70rpm | 0.07kg.cm | ≤0.2A | ≥0.2kg.cm |
| 236:1 | 1,652.931 | ≤0.035A | 49rpm | ≤0.08A | 35rpm | 0.15kg.cm | ≤0.2A | ≥0.4kg.cm |
| 302:1 | 2,112.082 | ≤0.035A | 37rpm | ≤0.08A | 27rpm | 0.2kg.cm | ≤0.2A | ≥0.5kg.cm |
| 603:1 | 4,224.164 | ≤0.035A | 19rpm | ≤0.08A | 13rpm | 0.4kg.cm | ≤0.2A | ≤1kg.cm |
| 1,030:1 | 7,212.8 | ≤0.065A | 11rpm | ≤0.15A | 7rpm | 0.6kg.cm | ≤0.4A | ≤1.5kg.cm |
Note: All reduced no-load speeds have a tolerance of ±15%.
As a result, this 6V A35 type version covers speeds from 11rpm to 275rpm. Moreover, it is useful when the design needs lower current than the B45 type version.
Model: NFP-WG1218S-N20-EN, 12V DC, A35 Type
Finally, this 12V DC A35 type version gives the highest speed group on this page. Therefore, it is useful for 12V products that need compact size, encoder feedback, and faster output.
In addition, the high-ratio options support slow motion and higher torque. As a result, users can choose one model family for several speed and load needs.
| Ratio | Hall Signal No. (7× Ratio) | No-load Current | No-load Speed | Rated Current | Rated Speed | Rated Torque | Stall Current | Stall Torque |
|---|---|---|---|---|---|---|---|---|
| 42:1 | 294 | ≤0.065A | 550rpm | ≤0.15A | 390rpm | 0.05kg.cm | ≤0.4A | ≥0.16kg.cm |
| 118:1 | 826.469 | ≤0.065A | 200rpm | ≤0.15A | 140rpm | 0.15kg.cm | ≤0.4A | ≥0.4kg.cm |
| 236:1 | 1,652.931 | ≤0.065A | 100rpm | ≤0.15A | 70rpm | 0.3kg.cm | ≤0.4A | ≥0.8kg.cm |
| 302:1 | 2,112.082 | ≤0.065A | 78rpm | ≤0.15A | 55rpm | 0.4kg.cm | ≤0.4A | ≥1.1kg.cm |
| 603:1 | 4,224.164 | ≤0.065A | 39rpm | ≤0.15A | 27rpm | 0.8kg.cm | ≤0.4A | ≥2kg.cm |
| 1,030:1 | 7,212.8 | ≤0.065A | 22rpm | ≤0.15A | 15rpm | 1.2kg.cm | ≤0.4A | ≥3kg.cm |
Note: All reduced no-load speeds have a tolerance of ±15%.
In conclusion, this 12V A35 type version covers speeds from 22rpm to 550rpm. Also, the 1,030:1 ratio gives strong torque and the highest Hall signal number in this table.
Low Maintenance Worm Gearbox Motor Mechanical Drawing
First, the mechanical drawing helps users check motor size, gearbox shape, output shaft size, and mounting space. Therefore, it is useful before sample testing and product design.
In addition, N20 worm gear motors are small and compact. As a result, they are useful for products where space is limited.
Mechanical Design Benefits
- First, compact size: The N20 worm gear motor helps save product space.
- In addition, self-locking output: The worm gearbox helps hold position.
- Also, 3mm shaft: The shaft can connect small drive parts.
- Next, right-angle layout: The worm drive helps fit narrow mechanical spaces.
- Finally, magnetic encoder: The encoder supports feedback control.
Compact Worm Geared Motor with Hall Encoder Connection Method
First, the Hall encoder connection image helps users check motor wiring and encoder wiring before power-on. Therefore, users should confirm the connector and wire order before testing.
In addition, N20 worm gear motors often run with low noise and smooth motion. As a result, they are suitable for noise-sensitive products and small motion systems.
Hall Encoder Specifications
First, the table below shows the magnetic Hall encoder data. Also, it helps users check encoder type, line speed, supply voltage, interface type, signal type, response frequency, and pulse number.
| Encoder Type | AB dual-phase incremental magnetic Hall encoder |
|---|---|
| Line Speed | Basic pulse 7PPR × gear reduction ratio |
| Supply Voltage | DC 3.3V / DC 5V |
| Basic Skills | Built-in pull-up shaping resistor, directly connected to the microcontroller |
| Interface Type | ZH1.5-6PIN (standard connecting cable) |
| Output Signal Type | Square wave AB phase |
| Response Frequency | 100KHz |
| Basic Pulse Number | 7PPR |
| Number of Magnetic Ring Trigger Poles | 14 poles (7 pairs of poles) |
As a result, the encoder can provide AB phase square wave feedback for speed and direction detection. Moreover, the built-in pull-up shaping resistor helps simplify microcontroller connection.
Typical Applications
Finally, this worm drive motor with magnetic encoder is useful for compact products that need position holding, low noise, and feedback control. For example, it can work in small locks, valves, robot joints, smart devices, and small automatic mechanisms.
- Small locks
- Mini valves
- Robot joints
- Smart devices
- Small automatic mechanisms
- Noise-sensitive products
- Compact right-angle drive systems
Selection Notes
First, users should choose the voltage, motor type, and gear ratio based on speed, torque, current, and Hall signal needs. Also, users should check whether self-locking is suitable for the product load.
- First, for higher speed: Choose a lower ratio such as 42:1.
- In addition, for higher torque: Choose a higher ratio such as 603:1 or 1,030:1.
- Also, for 3V systems: Choose the 3V B45 type version.
- Next, for 6V systems: Choose the 6V B45 or 6V A35 type version based on current and torque needs.
- Moreover, for 12V systems: Choose the 12V A35 type version for higher voltage drive systems.
- Finally, for feedback control: Use the Hall signal number and 7PPR base pulse for speed or position calculation.
In short, the NFP-WG1218S-N20-EN affordable worm drive motor with magnetic encoder is a good fit for products that need 3V, 6V, or 12V DC power, compact N20 size, self-locking gearbox, Hall encoder feedback, and stable low-speed output.
Keywords: worm gear motor with encoder, 12V worm gear motor, worm gearbox with motor, micro worm motor, N20 gear motor, DC worm gearhead motor, compact electric motor with worm gear system, right angle drive motor for small spaces
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Shipping:
1.Delivery: DHL/FedEx 3-5 days.
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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.


Joanna Riggs –
I recently used this 12mm worm gear motor in a micro robotics project, and it worked wonders!
Jason Williams –
The low speed setting allows me to move the blinds quietly and slowly, giving a professional feel. The reversibility makes it easy to program the blinds’ open and closed functions.🫡🪟
Jasmine Johnson –
This motor is a good performer with good torque and efficiency. It is a bit noisy, though, especially at high speeds. Not a big deal for me.