Discover XQ-Power Servos in Our eBay Store!

Shop Now
Robbe FS-7740
Standard

Robbe FS-7740

Compatible Hardware

*Based on known specs.

Technical Specifications

Last Updated: 2026-07-28
Identity
Brand Robbe
Product Number 9124
Category Hobby
Performance
Torque
8.4V 556.99 oz-in
6.0V 447.26 oz-in
Speed
8.4V 0.09 sec/60°
6.0V 0.11 sec/60°
Running Current (add)
Stall Current (add)
Physical
Weight 3.07 oz
Dimensions L 1.59 in
W 0.81 in
H 1.58 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 Digital (Brushless)
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 7.52–11.44 W
Torque Density5.1409 oz-in/g
Stronger than 78% of the 833 Digital Standard servos in the database
Torque-to-Volume Ratio220.76 oz-in/in³
Denser torque than 87% of the 844 Digital Standard servos in the database
Power Density5.648 W/in³
More power-dense than 82% of the 1645 Digital Standard servos in the database
Speed-to-Weight0.10449 (1/sec·g)
Faster than 37% of the 822 Digital Standard servos in the database
Speed-Torque Trade-off49.19
Better balanced than 76% of the 827 Digital Standard servos in the database
Torque Gain per Volt10.22%/V
More voltage-responsive (torque) than 19% of the 674 Digital Standard servos in the database
Speed Gain per Volt9.26%/V
More voltage-responsive (speed) than 14% of the 688 Digital Standard servos in the database
Voltage Range Width2.4 V
Wider voltage range than 52% of the 1271 Digital Standard servos in the database

Similar Active Servos

Reviews of Robbe FS-7740

Be the first to review!

Submit a review of Robbe FS-7740