Robbe FS 30

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*Spec is estimated from brand data.

Technical Specifications

Last Updated: 2026-10-24

Identity
Brand
Product Number	8434
Category	Hobby
Discontinued	Yes
Performance
Torque	4.8V12.50 oz-inBelow Average
Speed	4.8V0.13 sec/60°Below Average
Physical
Weight	0.19 ozAbove Average
Dimensions	L 0.79 in W 0.31 in H 0.69 in
Drivetrain
Gear Spline/Teeth	25 T estimate
Control & Signal
Modulation	Analog
Control System	PWM
Electrical & Environment
Operating Voltage	4.8 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 16% of 160 Analog Micro servos at 4.8V
Speed	Below Average Faster than 32% of 160 Analog Micro servos at 4.8V
Weight	Above Average Lighter than 82% of 336 Analog Micro servos

Performance Analysis

Shaft Power	0.17 W
Power Density	1.029 W/in³ More power-dense than 69% of 322 Analog Micro servos
Torque Density	2.2727 oz-in/g Stronger than 61% of 160 Analog Micro servos
Torque-to-Volume Ratio	73.97 oz-in/in³ Denser torque than 91% of 160 Analog Micro servos
Speed-to-Weight	1.36705 (1/sec·g) Faster than 77% of 160 Analog Micro servos
Speed-Torque Trade-off	1.66 Better balanced than 18% of 159 Analog Micro servos