Robbe 8g

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*Spec is estimated from brand data.

Technical Specifications

Last Updated: 2026-07-28

Identity
Brand
Product Number	8544
Category	Hobby
Discontinued	Yes
Performance
Torque	6.0V 18.10 oz-in 4.8V 11.10 oz-in Below Average
Speed	6.0V 0.12 sec/60° 4.8V 0.15 sec/60° Below Average
Physical
Weight	0.28 ozAverage
Dimensions	L 0.90 in W 0.45 in H 0.82 in
Drivetrain
Gears	Plastic
Gear Spline/Teeth	25 T estimate
Rotation/Support	Bushing
Control & Signal
Modulation	Analog
Control System	PWM
Electrical & Environment
Operating Voltage	4.8–6 V
Connectivity
Connector	JR (Universal) estimate

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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.

Compatible Hardware

Amazon eBay

*Spec is estimated from brand data.

Class Comparison

Torque	Below Average Stronger than 11% of 160 Analog Micro servos at 4.8V
Speed	Below Average Faster than 16% of 160 Analog Micro servos at 4.8V
Weight	Average Lighter than 62% of 336 Analog Micro servos

Performance Analysis

Shaft Power	0.14–0.28 W
Power Density	0.840 W/in³ More power-dense than 50% of 322 Analog Micro servos
Torque Density	1.3875 oz-in/g Stronger than 9% of 160 Analog Micro servos
Torque-to-Volume Ratio	33.42 oz-in/in³ Denser torque than 13% of 160 Analog Micro servos
Speed-to-Weight	0.83333 (1/sec·g) Faster than 42% of 160 Analog Micro servos
Speed-Torque Trade-off	1.67 Better balanced than 19% of 159 Analog Micro servos
Torque Gain per Volt	52.55%/V 2nd-highest torque gain per volt of 101 Analog Micro servos
Speed Gain per Volt	20.83%/V More voltage-responsive (speed) than 88% of 101 Analog Micro servos
Voltage Range Width	1.2 V Wider voltage range than 71% of 174 Analog Micro servos