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Robbe FS-29X
Mini

Robbe FS-29X

Compatible Hardware

*Based on known specs.

Technical Specifications

Last Updated: 2026-10-26
Identity
Brand Robbe
Product Number 9126
Category Hobby
Performance
Torque
8.4V 48.61 oz-in
6.0V 41.66 oz-in
3.8V 36.11 oz-in Below Average
Speed
8.4V 0.07 sec/60°
6.0V 0.08 sec/60°
3.8V 0.18 sec/60° Bottom 10%
Physical
Weight 0.35 ozTop 10%
Dimensions L 0.925 in
W 0.315 in
H 0.917 in
Case Material Aluminum
Drivetrain
Motor Type Coreless
Gears Metal
Gear Spline/Teeth 15 T
Rotation/Support Dual Bearings
Control & Signal
Modulation Digital
Electrical & Environment
Operating Voltage 3.8–8.4 V
Water Rating IP56/67
Connectivity
Connector JR (Universal) estimate
Origin
Country of Origin German

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.

Class Comparison

TorqueBelow Average
Stronger than 19% of 290 Digital Mini servos at 3.8V
SpeedBottom 10%
Faster than 10% of 293 Digital Mini servos at 3.8V
WeightTop 10%
Lighter than 98% of 505 Digital Mini servos

Performance Analysis

Shaft Power 0.38–1.38 W
Power Density5.175 W/in³
More power-dense than 86% of 482 Digital Mini servos
Torque Density3.6110 oz-in/g
Stronger than 84% of 286 Digital Mini servos
Torque-to-Volume Ratio135.15 oz-in/in³
Denser torque than 84% of 288 Digital Mini servos
Speed-to-Weight0.57143 (1/sec·g)
Faster than 88% of 289 Digital Mini servos
Speed-Torque Trade-off6.32
Better balanced than 43% of 288 Digital Mini servos
Torque Gain per Volt7.53%/V
More voltage-responsive (torque) than 2% of 257 Digital Mini servos
Speed Gain per Volt36.78%/V
5th-highest speed gain per volt of 262 Digital Mini servos
Voltage Range Width4.6 V
Wider voltage range than 98% of 405 Digital Mini servos

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