N20 Mini Gear Motor with JST Connecting Wire Brush Commutation for Electric Bicycle and Home Appliance Use

Product Description

Products Description

12mm small spur gear dc motor

12mm small spur gear dc motor

Main features
Model: GM12-N20VA-ED
Gearbox: metal spur gear reducer
Rated Voltage: DC 1.5V, 3V, 6V, 9V, 12V, 24V
Rated Torque: Max. 1.5kgf-cm
Size: Φ12mm * L TBD
Shaft: concentric driveshaft, Φ3mm D-cut 0.5mm, O, M3, M4, custom
Commutation: Carbon brush / Graphite brush
Construction: Permanent Magnet iron cored motor
Encoder: Magnetic encoder 3ppr / 7ppr
MOQ: 500 pcs
12mm small spur gear dc motor dimension drawing 12mm small spur gear dc motor detailed dimensions

Gearbox with motor Data

GM12-N20-09170-3.0V
Reduction 10 30 50 100 150 210 250 298 330
Length(mm) 9 9 9 9 9 9 9 9 9
No-load speed(rpm) 960 320 192 96 64 46 38 32 29
Rated speed(rpm) 730 243 146 73 49 35 29 24 22
Rated torque(kg.cm) 0.02 0.04 0.06 0.12 0.15 0.21 0.25 0.30 0.33
Stalling Torque (kg.cm) 0.07 0.18 0.25 0.50 0.63 0.88 1.04 1.24 1.38
GM12-N20-07310-12.0V
Reduction 50 100 150 210 250 298 330 380 1000
Length(mm) 9 9 9 9 9 9 9 9 12
No-load speed(rpm) 460 230 153 110 92 77 70 61 23
Rated speed(rpm) 410 205 137 98 82 69 62 54 21
Rated torque(kg.cm) 0.06 0.12 0.15 0.21 0.25 0.30 0.33 0.38 0.60
Stalling Torque (kg.cm) 0.55 1.10 1.38 1.93 2.30 2.74 3.04 3.50 5.52
Gearbox design detail Gearbox performance characteristics

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Motor raw materials

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Production Equipment

Company Profile

Corporate manufacturing facility overview
Established in August 2009, this is a high-tech enterprise that integrates the research and development, production, and marketing of micro motor series products. The main products include: various precision DC motors, stepper motors, reduction motors, planetary reduction motors, and brushless motors. Micro motors are widely used in medical equipment, medical detection and analysis, financial security, 5G applications, automotive appliances, intelligent communication, iris technology, AI intelligence, smart grid, smart home, commercial intelligent locks, smart switches, smart medicine cabinets, fresh food cabinets, smart wear, outdoor equipment, intelligent robots, electric tools, beauty tools, etc. Since its establishment, it has adhered to the concept of "people-oriented, pioneering and innovative spirit". After eleven years of rapid development, it has a group of young and pragmatic, professional and efficient work teams, advanced production facilities, efficient management, excellent quality, and high-quality services to meet customers' needs of continuously improving product levels, reducing energy consumption, facilitating production, and improving efficiency, winning more and more recognition from customers.

Certifications

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Application Scenario

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Global Market Distribution

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Frequently Asked Questions

Q What are the core technical features of this 12mm spur gear DC motor?
It features a robust metal spur gear reducer, support for multiple rated voltages (from DC 1.5V up to 24V), a maximum torque limit of 1.5kgf-cm, optional carbon or graphite brush commutation, and optional magnetic encoder integration (3ppr/7ppr).
Q Can the driveshaft specifications be customized?
Yes, customizable options include concentric driveshafts, Φ3mm D-cut (0.5mm depth), O-shape configurations, M3/M4 threaded shafts, and other bespoke dimensional configurations to fit your application.
Q In what fields are these micro motors commonly applied?
They are extensively used in medical diagnostics, smart home security (such as commercial smart locks), AI-driven robotics, beauty equipment, automotive appliances, smart wearables, and various portable outdoor gear.
Q What is the Minimum Order Quantity (MOQ) for custom manufacturing?
The standard production Minimum Order Quantity (MOQ) is 500 pieces per batch to maintain cost-efficiency and production quality.
Q How does the integrated magnetic encoder function?
The optional integrated magnetic encoder (available in 3ppr or 7ppr resolutions) provides real-time speed and rotational feedback, making it ideal for applications requiring precise position control.
Q What reduction ratios are supported by this gearbox?
Depending on the configured voltage (3.0V vs. 12.0V), we offer reduction ratios ranging from 10 to 330, and even up to 1000 for specialized slow-speed, high-torque applications.

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