Robbe 4.3g

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*Spec is estimated from brand data.

Technical Specifications

Last Updated: 2026-07-28

Identity
Brand
Product Number	8524
Category	Hobby
Discontinued	Yes
Performance
Torque	6.0V 11.10 oz-in 4.8V 9.70 oz-in Below Average
Speed	6.0V 0.12 sec/60° 4.8V 0.15 sec/60° Below Average
Physical
Weight	0.15 ozAbove Average
Dimensions	L 0.77 in W 0.31 in H 0.77 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 14% of 170 Analog Micro servos at 4.8V
Speed	Below Average Faster than 12% of 170 Analog Micro servos at 4.8V
Weight	Above Average Lighter than 88% of 346 Analog Micro servos

Performance Analysis

Shaft Power	0.12–0.17 W
Power Density	0.930 W/in³ More power-dense than 58% of 333 Analog Micro servos
Torque Density	2.2558 oz-in/g Stronger than 57% of 170 Analog Micro servos
Torque-to-Volume Ratio	52.78 oz-in/in³ Denser torque than 58% of 170 Analog Micro servos
Speed-to-Weight	1.55039 (1/sec·g) Faster than 75% of 170 Analog Micro servos
Speed-Torque Trade-off	1.46 Better balanced than 23% of 169 Analog Micro servos
Torque Gain per Volt	12.03%/V More voltage-responsive (torque) than 34% of 96 Analog Micro servos
Speed Gain per Volt	20.83%/V More voltage-responsive (speed) than 87% of 96 Analog Micro servos
Voltage Range Width	1.2 V Wider voltage range than 67% of 182 Analog Micro servos