What are the rated parameters and performance indicators of the N20 motor?

The N20 is a mainstream micro DC brushed motor, available in both direct-drive and geared versions. Its rated parameters and performance indicators are primarily DC powered, and it is commonly used in small model aircraft, precision instruments, toys, etc. Core parameters may fluctuate slightly depending on the manufacturer and customization requirements.

I. Rated Basic Parameters

1. Rated Operating Voltage: Mainstream specifications are 3V, 4.5V, and 6V DC voltage. Some customized models can adapt to the 1.5V~12V range.

2. Rated No-Load Speed: Approximately 6000~8000rpm with 3V power supply, and approximately 10000~12000rpm with 6V power supply. Geared models commonly have reduction ratios of 1:10, 1:20, and 1:50, which will correspondingly reduce the speed to 1/reduction ratio of the direct-drive model. For example, a model with a 1:20 reduction ratio has a no-load speed of approximately 300~600rpm.

3. Rated Power: Direct drive model approximately 0.3W~1.5W, geared model approximately 0.5W~2W.

4. Rated Operating Current: 20mA~80mA under no-load conditions, 100mA~500mA under rated load.

II. Core Performance Indicators

1. Stall Torque: Direct drive model approximately 0.01N·m~0.04N·m, geared model 0.1N·m~0.6N·m depending on the reduction ratio.

2. Peak Torque: Approximately 1.5~2 times the rated torque; can withstand 2 times the rated torque for short-term overload.

3. Operating Efficiency: Overall efficiency range is 25%~55%, no-load loss accounts for approximately 10%~20% of total power consumption.

4. Mechanical Life: 1000~5000 hours under normal light load conditions; lifespan will be shortened by 30%~60% under heavy load conditions.

5. Noise Level: The no-load operating noise is approximately 50~60dB(A), and the noise level will increase by 5~10dB(A) under load.

6. Dimensions: The outer diameter of the motor body is approximately 20mm, and the length excluding the output shaft is approximately 32mm. The output shaft diameter is mostly 2mm or 3mm, and the shaft length can be customized according to requirements.