12mm DC N20 Micro Gear Motor with Lead Screw and Dowel Pin
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Model
KC-GM12-N20-09190-3.7V
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Motor Type
N20 Mini DC Gear Motor
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Voltage
3.7V DC
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No-load Speed
11000 rpm
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Output Power
0.46 W
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Shaft Type
Lead Screw with Dowel Pin
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- Optimized N20 footprint supporting precise linear motion applications
- Integrated lead screw output shaft ensuring durable performance
- Compatible gear ratios available for custom integration requirements
✓ Bulk order pricing available
✓ ISO 9001, CE & RoHS Compliant
Overview Of KC-GM12-N20-09190-3.7V N20 Micro Gear Motor
The KC-GM12-N20-09190-3.7V represents an advanced n20 micro gear motor configuration engineered specifically for industrial automation, precision instruments, and miniature linear motion systems. Built with an integrated lead screw output shaft and a robust metal gearbox, this gear motor n20 ensures reliable torque transmission and stable operation across demanding B2B application environments. Designed to meet strict engineering standards, the unit provides consistent performance and high durability for professional OEM integrations.
Manufacturers and system integrators benefit from flexible electrical and mechanical customization options, allowing seamless adaptation into existing sub-assemblies. Whether deployed in smart locks, medical devices, or automated robotics, this motor delivers dependable output parameters backed by rigorous quality management protocols.
Core Engineering Advantages
Optimized Integration Footprint
Engineered with a streamlined 12mm motor diameter and standardized mounting hole configurations to facilitate installation within restricted spaces.
Durable Lead Screw Mechanism
Features an integrated 3mm lead screw output shaft complete with a dowel pin, ensuring precise linear movement conversion without mechanical slippage.
Versatile Gear Ratio Range
Supports multiple gearbox reduction ratios spanning from 30:1 up to 380:1, matching diverse operational speed and torque requirements.
Reliable Power Transmission
Utilizes precision metal gearing to maintain high mechanical efficiency and sustained torque delivery under continuous operating loads.
Technical Specification Parameters
The following physical and mechanical parameters outline the structural design of the KC-GM12-N20-09190-3.7V assembly:
| Parameter Name | Specification Value |
|---|---|
| Motor Diameter | 12 mm |
| Motor Body Length | 15.2 mm |
| Gearbox Length | 9 mm |
| Total Gear Motor Length | Approx. 24.2 mm (without lead screw) |
| Lead Screw Diameter | Ø3 mm |
| Lead Screw Length | 30 mm |
| Lead Screw End Diameter | Ø2 mm |
| Lead Screw Pin Diameter | Ø1 mm |
| Mounting Face | 12 × 12 mm |
| Mounting Hole | M1.6 × P0.35 |
| Shaft Type | Lead Screw Shaft with Dowel Pin |
| Dowel Pin | Included |
Performance Test Data And Gear Ratio Options
Engineers can evaluate the electrical and mechanical performance characteristics across multiple available gear reduction ratios for the KC-GM12-N20-09190-3.7V variant (Rated Voltage: 3.7V DC, No-load Speed: 11000 rpm, No-load Current: 45 mA, Output Power: 0.46 W):
| Gear Ratio | No-load Speed (rpm) | Rated Speed (rpm) | Rated Torque (kg.cm) | Stall Torque (kg.cm) |
|---|---|---|---|---|
| 30:1 | 367 | 293 | 0.042 | 0.210 |
| 50:1 | 220 | 176 | 0.060 | 0.300 |
| 100:1 | 110 | 88 | 0.120 | 0.600 |
| 150:1 | 73 | 59 | 0.150 | 0.750 |
| 210:1 | 52 | 42 | 0.210 | 1.050 |
| 250:1 | 44 | 35 | 0.250 | 1.250 |
| 298:1 | 37 | 30 | 0.298 | 1.490 |
| 330:1 | 33 | 27 | 0.330 | 1.650 |
| 380:1 | 29 | 23 | 0.380 | 1.900 |
Detailed N20 Motor Dimensions And Technical Drawing
Reviewing precise mechanical layouts is critical during engineering integration. The structural schematic below outlines the exact n20 motor dimensions, highlighting the M1.6 mounting holes, 12mm motor body profile, and 3mm lead screw output shaft geometry.

Target Industrial Applications
Due to its high precision and reliable mechanical construction, the KC-GM12-N20 is widely integrated across various professional industrial domains:
Medical Devices
Utilized in portable diagnostic equipment and miniature fluid dispensing pumps requiring strict operational reliability.
Precision Instruments
Integrated into optical adjustment modules and laboratory testing instruments where exact positioning is mandatory.
Smart Locking Systems
Deployed in automated electronic deadbolts and secure cabinet locking mechanisms needing high torque output.
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