Robbe FS-510

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*Based on known specs.

Technical Specifications

Last Updated: 2026-10-26

Identity
Brand
Product Number	9102
Category	Hobby
Discontinued	Yes
Performance
Torque	6.0V 129.87 oz-in 4.8V 120.15 oz-in Below Average
Speed	6.0V 0.13 sec/60° 4.8V 0.15 sec/60° Average
Physical
Weight	2.19 ozAverage
Dimensions	L 1.59 in W 0.79 in H 1.59 in
Case Material	Aluminum
Drivetrain
Gears	Metal
Gear Spline/Teeth	25 T
Rotation/Support	Dual Bearings
Control & Signal
Modulation	Digital
Electrical & Environment
Operating Voltage	4.8–6 V
Connectivity
Connector	JR (Universal) estimate
Origin
Country of Origin	Austria

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Compatible Hardware

Amazon eBay

*Based on known specs.

Class Comparison

Torque	Below Average Stronger than 23% of 1060 Digital Standard servos at 4.8V
Speed	Average Faster than 41% of 1045 Digital Standard servos at 4.8V
Weight	Average Lighter than 53% of 1880 Digital Standard servos

Performance Analysis

Shaft Power	1.48–1.85 W
Power Density	0.925 W/in³ More power-dense than 15% of 1768 Digital Standard servos
Torque Density	1.9379 oz-in/g Stronger than 21% of 1053 Digital Standard servos
Torque-to-Volume Ratio	60.16 oz-in/in³ Denser torque than 20% of 1058 Digital Standard servos
Speed-to-Weight	0.10753 (1/sec·g) Faster than 45% of 1038 Digital Standard servos
Speed-Torque Trade-off	18.02 Better balanced than 31% of 1034 Digital Standard servos
Torque Gain per Volt	6.74%/V More voltage-responsive (torque) than 6% of 873 Digital Standard servos
Speed Gain per Volt	12.81%/V More voltage-responsive (speed) than 33% of 874 Digital Standard servos
Voltage Range Width	1.2 V Wider voltage range than 11% of 1560 Digital Standard servos