KingMax Hobby KM-04MD

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Technical Specifications

Last Updated: 2026-10-10

Identity
Brand
Product Number	KM-04MD
Category	Hobby
Performance
Torque	6.0V 13.20 oz-in 4.8V 10.42 oz-in Average
Speed	6.0V 0.09 sec/60° 4.8V 0.11 sec/60° Below Average
Physical
Weight	0.19 ozBelow Average
Dimensions	L 0.78 in W 0.33 in H 0.77 in
Case Material	Metal
Drivetrain
Motor Type	Coreless
Gears	Metal
Rotation/Support	Bushing
Control & Signal
Modulation	Digital
Neutral Position	1520 µs
Dead Band	2 µs
Refresh Rate	330 Hz
Angle Sensor	Potentiometer
Control System	PWM
Electrical & Environment
Operating Voltage	4.8–6 V
Temperature	-10–60 °C
Water Rating	None
Connectivity
Connector	JR (Universal)
Wire Length	180 mm
Origin
Country of Origin	China

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Disclaimer: Most data is sourced from the manufacturer. Some data is sourced from our loyal community and with the help of AI. We aim for accuracy but are not responsible for inaccurate information.

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Amazon eBay

*Based on known specs.

Class Comparison

Torque	Average Stronger than 43% of 29 Nano servos at 4.8V
Speed	Below Average Faster than 32% of 29 Nano servos at 4.8V
Weight	Below Average Lighter than 23% of 41 Digital Nano servos

Performance Analysis

Shaft Power	0.18–0.27 W
Power Density	1.368 W/in³ More power-dense than 47% of 35 Digital Nano servos
Torque Density	1.8946 oz-in/g Stronger than 19% of 33 KingMax Hobby servos
Torque-to-Volume Ratio	52.57 oz-in/in³ Denser torque than 19% of 33 KingMax Hobby servos
Speed-to-Weight	1.65289 (1/sec·g) 1st-highest speed-to-weight of 33 KingMax Hobby servos
Speed-Torque Trade-off	1.15 Better balanced than 3% of 33 KingMax Hobby servos
Torque Gain per Volt	22.23%/V 4th-highest torque gain per volt of 31 KingMax Hobby servos
Speed Gain per Volt	18.52%/V More voltage-responsive (speed) than 70% of 31 KingMax Hobby servos
Voltage Range Width	1.2 V Wider voltage range than 19% of 32 Digital Nano servos