20mm Metal Gear Motor Model NFP-GM20-180-EN

Low Voltage DC Gear Motor W/ Hall Encoder Data Sheet

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High-Precision Torque Delivery: Our DC motor is designed to provide consistent torque output, making it ideal for applications requiring reliable and precise motion control.
Robust Construction for Longevity: Engineered with high-quality materials, this motor is built to withstand the rigors of continuous operation, ensuring a long service life with minimal maintenance.

Model	NFP-GM20-180-EN
Motor Diameter	20mm
Shaft Diameter	4mm
Shaft Length	10.5mm
Voltage Range	6V / 12V DC
No-load Speed	15rpm – 1,200rpm
No-load Current	≤0.15A / ≤0.2A
Wiring Gauge	PH2.0-6PIN
Rotation	CW / CCW
Weight	appr. 65g

 

Model: NFP-GM20-180-EN, 6V DC

Ratio	Gearbox Length	No-load Current	No-load Speed	Rated Current	Rated Speed	Rated Torque	Stall Current	Stall Torque
12.5:1	16mm	≤0.15A	590rpm	≤0.6A	440rpm	0.2kg.cm	≤2A	≥0.6kg.cm
25:1	16mm	≤0.15A	290rpm	≤0.6A	220rpm	0.4kg.cm	≤2A	≥1.2kg.cm
50:1	17.5mm	≤0.15A	145rpm	≤0.6A	110rpm	0.8kg.cm	≤2A	≥2.3kg.cm
78:1	17.5mm	≤0.15A	95rpm	≤0.6A	70rpm	1kg.cm	≤2A	≥3.5kg.cm
100:1	19mm	≤0.15A	75rpm	≤0.6A	55rpm	1.3kg.cm	≤2A	≥4.5kg.cm
156:1	19mm	≤0.15A	48rpm	≤0.6A	35rpm	2kg.cm	≤2A	≥6.5kg.cm
195:1	19mm	≤0.15A	37rpm	≤0.6A	28rpm	3kg.cm	≤2A	≤7kg.cm
250:1	20.5mm	≤0.15A	30rpm	≤0.6A	22rpm	3.5kg.cm	≤2A	≤7kg.cm
390:1	20.5mm	≤0.15A	19rpm	≤0.6A	14rpm	5kg.cm	≤2A	≤7kg.cm
488:1	20.5mm	≤0.15A	15rpm	≤0.6A	12rpm	7kg.cm	≤2A	≤7kg.cm

Note: all reduced no-load speeds have a tolerance of ±15%.

 

Model: NFP-GM20-180-EN, 12V DC

Ratio	Gearbox Length	No-load Current	No-load Speed	Rated Current	Rated Speed	Rated Torque	Stall Current	Stall Torque
12.5:1	16mm	≤0.2A	1,200rpm	≤1.3A	900rpm	0.4kg.cm	≤4A	≥1kg.cm
25:1	16mm	≤0.2A	600rpm	≤1.3A	450rpm	0.8kg.cm	≤4A	≥1.8kg.cm
50:1	17.5mm	≤0.2A	300rpm	≤1.3A	230rpm	1.6kg.cm	≤4A	≥3.5kg.cm
78:1	17.5mm	≤0.2A	195rpm	≤1.3A	145rpm	2kg.cm	≤4A	≥5kg.cm
100:1	19mm	≤0.2A	150rpm	≤1.3A	110rpm	2.5kg.cm	≤4A	≤7kg.cm
156:1	19mm	≤0.2A	99rpm	≤1.3A	72rpm	4kg.cm	≤4A	≤7kg.cm
195:1	19mm	≤0.2A	75rpm	≤1.3A	58rpm	5kg.cm	≤4A	≤7kg.cm
250:1	20.5mm	≤0.2A	60rpm	≤1.3A	46rpm	7kg.cm	≤4A	≤7kg.cm
390:1	20.5mm	≤0.2A	38rpm	≤1.3A	30rpm	7kg.cm	≤4A	≤7kg.cm
488:1	20.5mm	≤0.2A	30rpm	≤1.3A	24rpm	7kg.cm	≤4A	≤7kg.cm

Note: all reduced no-load speeds have a tolerance of ±15%.

 

Precision Gearhead Motor Small Gearbox with Motor Mechanical Drawing

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Versatile Speed Control: Featuring variable speed capabilities, this motor can be easily adjusted to meet the demands of different tasks, offering flexibility for a wide range of projects.
Compact Size with High Power Density: Despite its small footprint, this motor delivers significant power, making it perfect for applications where space is at a premium but performance is non-negotiable.

High Torque Gear Reducer Motors with Encoder Wiring Diagram

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User-Friendly Integration: Easy to integrate with existing systems or for use in new designs, our motor comes with straightforward wiring options and compatibility with various controllers.
[Wiring Sequence]

1. White wire M1 – Motor power input (polarity can be swapped with M2 for reversing direction)
2. Blue wire VCC – Hall effect power supply positive input (3.3V / 5V)
3. Green wire – Hall signal output C1 – Phase A
4. Yellow wire – Hall signal output C2 – Phase B
5. Black wire GND – Hall effect power supply ground negative input
6. Red wire M2 – Motor power input (polarity can be swapped with M1 for reversing direction)

Encoder Type	AB Dual-phase incremental magnetic Hall encoder
Line Speed	Basic Pulse 11PPR x Gear Reduction Ratio
Supply Voltage	3.3V / 5V DC
Basic Function	Built-In Pull-Up Shaping Resistor, Directly Connected To Microcontroller
Interface Type	PH2.0-6PIN (Standard Connecting Cable)
Output Signal Type	Square Wave AB Phase
Response Frequency	100KHz
Basic Pulse Number	11 PPR
Number Of Magnetic Ring Trigger Poles	22 Poles (11 Pairs Of Poles)

Keywords: custom gear motor solution, variable speed gearbox motors, spur gear motor for conveyors, automotive gearbox electric motors, compact gear motor.
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