Emax ES3004

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Technical Specifications

Last Updated: 2026-10-08

Identity
Brand
Product Number	ES3004
Category	Hobby
Performance
Torque	6.0V 48.62 oz-in 4.8V 41.67 oz-in Above Average
Speed	6.0V 0.13 sec/60° 4.8V 0.15 sec/60° Below Average
Physical
Weight	0.60 ozAverage
Dimensions	L 1.12 in W 0.512 in H 1.224 in
Drivetrain
Gears	Steel
Gear Spline/Teeth	23 T
Rotation/Support	Single Bearing
Control & Signal
Modulation	Analog
Direction	Counterclockwise
Rotational Range	145°
Mechanical Limit	145°
Pulse Width	700-2300 µs
Neutral Position	1500 µs
Electrical & Environment
Operating Voltage	4.8–6 V
Connectivity
Connector	Futaba \| JR
Origin
Country of Origin	China

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Compatible Hardware

Amazon eBay

*Based on known specs.

Class Comparison

Torque	Above Average Stronger than 75% of 80 Analog Mini servos at 4.8V
Speed	Below Average Faster than 31% of 81 Analog Mini servos at 4.8V
Weight	Average Lighter than 63% of 165 Analog Mini servos

Performance Analysis

Shaft Power	0.51–0.69 W
Power Density	0.985 W/in³ More power-dense than 66% of 163 Analog Mini servos
Torque Density	2.4512 oz-in/g Stronger than 85% of 80 Analog Mini servos
Torque-to-Volume Ratio	59.37 oz-in/in³ Denser torque than 71% of 80 Analog Mini servos
Speed-to-Weight	0.39216 (1/sec·g) Faster than 51% of 81 Analog Mini servos
Speed-Torque Trade-off	6.25 Better balanced than 72% of 80 Analog Mini servos
Torque Gain per Volt	13.90%/V More voltage-responsive (torque) than 52% of 55 Analog Mini servos
Speed Gain per Volt	12.81%/V More voltage-responsive (speed) than 25% of 56 Analog Mini servos
Voltage Range Width	1.2 V Wider voltage range than 17% of 88 Analog Mini servos