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Robbe FS-525
Standard

Robbe FS-525

Compatible Hardware

*Based on known specs.

Technical Specifications

Last Updated: 2026-07-28
Identity
Brand Robbe
Product Number 26.99
Category Hobby
Performance
Torque
8.4V 319.47 oz-in
6.0V 266.69 oz-in
Speed
8.4V 0.15 sec/60°
6.0V 0.17 sec/60°
Running Current (add)
Stall Current (add)
Physical
Weight 2.19 oz
Dimensions L 1.59 in
W 0.80 in
H 1.50 in
Case Material Aluminum
Drivetrain
Motor Type (add)
Motor Drive (add)
Gears Metal
Gear Spline/Teeth 25 T
Shaft Size (add)
Rotation Mode (add)
Rotation/Support Dual Bearings
Backlash (add)
Control & Signal
Modulation Digital
Direction (add)
Rotational Range (add)
Mechanical Limit (add)
Pulse Cycle (add)
Pulse Width (add)
Neutral Position (add)
Dead Band (add)
Refresh Rate (add)
Angle Sensor (add)
Control System (add)
Programmable (add)
Signal Voltage (add)
Electrical & Environment
Operating Voltage 6–8.4 V
Power Source (add)
Regulator Type (add)
Temperature (add)
Water Rating (add)
Certification (add)
Idle Current (add)
Connectivity
Connector JR (Universal) estimate
Wire Length (add)
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.

Performance Analysis

Shaft Power 2.90–3.94 W
Torque Density4.3015 oz-in/g
Stronger than 67% of the 831 Digital Standard servos in the database
Torque-to-Volume Ratio140.68 oz-in/in³
Denser torque than 62% of the 842 Digital Standard servos in the database
Power Density2.077 W/in³
More power-dense than 46% of the 1643 Digital Standard servos in the database
Speed-to-Weight0.09488 (1/sec·g)
Faster than 28% of the 820 Digital Standard servos in the database
Speed-Torque Trade-off45.34
Better balanced than 73% of the 825 Digital Standard servos in the database
Torque Gain per Volt8.25%/V
More voltage-responsive (torque) than 13% of the 672 Digital Standard servos in the database
Speed Gain per Volt5.56%/V
More voltage-responsive (speed) than 3% of the 686 Digital Standard servos in the database
Voltage Range Width2.4 V
Wider voltage range than 52% of the 1268 Digital Standard servos in the database

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