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!

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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

NFP-GM25-BK370-EN gear dc motor outline drawing

In addition, you can request an optional mounting bracket when placing your order.

NFP-GM25-BK370 gear dc motor mounting bracket

 

Miniature RS 555 Brush DC Motor Encoder Wiring


First, connect the terminal pins according to the pinout configuration shown in the diagram below:

NFP-GM25-BK370-EN gear motor encoder wiring

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

Payment:
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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