25mm Encoder Metal DC Gear Motor − 66mm Type Model NFP-GM25-BK370-EN
$18.50
Discover the powerful performance of our metal gear dc encoder motor, designed for versatility with adjustable speed and rotation. Order now!
Permanent Magnet DC Reduction Gear Motor Parameters
First, this 25mm metal DC gear motor integrates a 370 motor and an incremental magnetic encoder. Therefore, it provides precise speed control and real-time position tracking for automated applications.
In addition, the all-metal gearbox withstands high torque loads while maintaining smooth operation. As a result, engineers rely on this compact geared motor for high-precision hardware projects.
Also, the motor supports multiple voltage levels and gear reduction ratios. Therefore, you can easily select the optimal setup for your specific torque requirements.
Key Design Features:
- Pure Copper Winding: Rotor uses pure copper for low resistance, high conductivity, and increased torque.
- Extended Carbon Brushes: Tool-type replaceable carbon brushes ensure longer service life.
- D-Shaped Shaft: Prevents shaft slippage and simplifies mechanical mounting.
- All-Metal Gearbox: Delivers superior wear resistance, quick heat dissipation, and strong torque capacity.
- Dust-Proof Encoder Cover: Protects the Hall effect encoder module from dust and debris.
Common Uses: Smart self-balancing vehicles, tracking robots, smart home appliances, camera jibs, and electric tape cutters.
General Motor Specifications
| Motor Model | NFP-GM25-BK370-EN |
|---|---|
| Rated Voltage | 6V / 12V DC |
| Speed Regulation | Yes |
| Rotation | CW / CCW |
| Shaft Diameter | Φ4mm (D-shaped: 3.5mm) |
| Shaft Length | 12mm (D-cut: 8mm) |
| Weight | Appr. 100g |
Model: NFP-GM25-BK370-EN (6V DC, 10000RPM, Max Power: 8W)
| Ratio | No Load | Rated Load | Stall | ||||
|---|---|---|---|---|---|---|---|
| i : 1 | Speed | Current | Speed | Current | Torque | Torque | Current |
| 4.4: 1 | 2000 rpm | ≤400mA | 1500 rpm | ≤1.4A | 0.3 kg.cm | / kg.cm | ≤8A |
| 9.3: 1 | 880 rpm | ≤400mA | 660 rpm | ≤1.4A | 0.6 kg.cm | / kg.cm | ≤8A |
| 20: 1 | 440 rpm | ≤400mA | 330 rpm | ≤1.4A | 1.2 kg.cm | / kg.cm | ≤8A |
| 34: 1 | 259 rpm | ≤400mA | 194 rpm | ≤1.4A | 2 kg.cm | / kg.cm | ≤8A |
| 45: 1 | 195 rpm | ≤400mA | 147 rpm | ≤1.4A | 2.7 kg.cm | / kg.cm | ≤8A |
| 57: 1 | 154 rpm | ≤400mA | 116 rpm | ≤1.4A | 3.5 kg.cm | / kg.cm | ≤8A |
| 75: 1 | 117 rpm | ≤400mA | 88 rpm | ≤1.4A | 4.5 kg.cm | / kg.cm | ≤8A |
| 100: 1 | 88 rpm | ≤400mA | 66 rpm | ≤1.4A | 6 kg.cm | / kg.cm | ≤8A |
| 125: 1 | 70 rpm | ≤400mA | 53 rpm | ≤1.4A | Max 8 kg.cm | / kg.cm | ≤8A |
| 217: 1 | 40 rpm | ≤400mA | 30 rpm | ≤1.4A | Max 8 kg.cm | / kg.cm | ≤8A |
| 478: 1 | 18 rpm | ≤400mA | 14 rpm | ≤1.4A | Max 8 kg.cm | / kg.cm | ≤8A |
Note: All reduced no-load speeds have a tolerance of ±15%. When the reduction ratio exceeds 125:1, keep the load below 8 kg.cm to prevent gear damage.
Model: NFP-GM25-BK370-EN (12V DC, 20000RPM, Max Power: 26W)
| Ratio | No Load | Rated Load | Stall | ||||
|---|---|---|---|---|---|---|---|
| i : 1 | Speed | Current | Speed | Current | Torque | Torque | Current |
| 4.4: 1 | 4300 rpm | ≤600mA | 3300 rpm | ≤2.7A | 0.5 kg.cm | / kg.cm | ≤16A |
| 9.3: 1 | 1892 rpm | ≤600mA | 1452 rpm | ≤2.7A | 1.1 kg.cm | / kg.cm | ≤16A |
| 20: 1 | 946 rpm | ≤600mA | 726 rpm | ≤2.7A | 2.3 kg.cm | / kg.cm | ≤16A |
| 34: 1 | 556 rpm | ≤600mA | 427 rpm | ≤2.7A | 3.5 kg.cm | / kg.cm | ≤16A |
| 45: 1 | 420 rpm | ≤600mA | 323 rpm | ≤2.7A | 4.5 kg.cm | / kg.cm | ≤16A |
| 57: 1 | 332 rpm | ≤600mA | 255 rpm | ≤2.7A | 6 kg.cm | / kg.cm | ≤16A |
| 75: 1 | 252 rpm | ≤600mA | 194 rpm | ≤2.7A | 7 kg.cm | / kg.cm | ≤16A |
| 100: 1 | 189 rpm | ≤600mA | 145 rpm | ≤2.7A | Max 8 kg.cm | / kg.cm | ≤16A |
| 125: 1 | 151 rpm | ≤600mA | 116 rpm | ≤2.7A | Max 8 kg.cm | / kg.cm | ≤16A |
| 217: 1 | 87 rpm | ≤600mA | 67 rpm | ≤2.7A | Max 8 kg.cm | / kg.cm | ≤16A |
| 478: 1 | 40 rpm | ≤600mA | 30 rpm | ≤2.7A | Max 8 kg.cm | / kg.cm | ≤16A |
Note: All reduced no-load speeds have a tolerance of ±15%. When the reduction ratio exceeds 100:1, keep the load below 8 kg.cm to prevent gear damage.
High Torque Small Gearbox DC Motor Outline Drawing
First, review the gearbox length corresponding to your chosen reduction ratio:
- Ratio 4.4 to 20: Gearbox length 19mm
- Ratio 34 to 45: Gearbox length 21mm
- Ratio 57 to 100: Gearbox length 23mm
- Ratio 125 to 217: Gearbox length 25mm
- Ratio 274 to 478: Gearbox length 27mm
In addition, you can request an optional mounting bracket when placing your order.
Miniature RS 555 Brush DC Motor Encoder Wiring
First, connect the terminal pins according to the pinout configuration shown in the diagram below:
Terminal Pinout:
- M1: Motor Power Input (-)
- GND: Hall Sensor Power Ground (3.3V / 5V)
- C1: Encoder Signal Phase A
- C2: Encoder Signal Phase B
- VCC: Hall Sensor Power Positive (3.3V / 5V)
- M2: Motor Power Input (+)
Encoder Technical Specifications
| Parameter | Specification |
|---|---|
| Encoder Type | AB Dual-Phase Incremental Magnetic Hall Effect Encoder |
| Supply Voltage | DC 3.3V / DC 5.0V |
| Output Signal Type | Square Wave AB Phase |
| Basic Function | Built-in pull-up resistor, direct MCU connection |
| Connector Type | 2.54mm DuPont Connector |
| Response Frequency | 100kHz |
| Basic Pulse Count | Selectable 1 PPR / 11 PPR / 13 PPR (Default: 11 PPR) |
| Magnetic Ring Trigger Poles | 2 / 22 / 26 Poles (1 / 11 / 13 Pole Pairs) |
Keywords: small dc gearbox, miniature reduction gear motor, brushed gear motor, drive gear boxes
1.Payment methods : Paypal, T/T
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.
4.Please make sure your address is matched with the finally shipping address before you pay.
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.


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