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Robbe FS 550 BB MG
Mini Discontinued

Robbe FS 550 BB MG

Compatible Hardware

*Spec is estimated from brand data.

Technical Specifications

Last Updated: 2026-07-28
Identity
Brand Robbe
Product Number 8522
Category Hobby
Discontinued Yes
Performance
Torque
6.0V 58.30 oz-in
4.8V 48.60 oz-in
Speed
6.0V 0.16 sec/60°
4.8V 0.21 sec/60°
Running Current (add)
Stall Current (add)
Physical
Weight 0.75 oz
Dimensions L 1.18 in
W 0.51 in
H 1.24 in
Case Material (add)
Drivetrain
Motor Type (add)
Motor Drive (add)
Gears Metal
Gear Spline/Teeth 25 T estimate
Shaft Size (add)
Rotation Mode (add)
Rotation/Support Single Bearing
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 PWM
Programmable (add)
Signal Voltage (add)
Electrical & Environment
Operating Voltage 4.8–6 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 (add)

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 0.43–0.67 W
Torque Density2.2925 oz-in/g
Stronger than 43% of the 219 Digital Mini servos in the database
Torque-to-Volume Ratio65.13 oz-in/in³
Denser torque than 37% of the 224 Digital Mini servos in the database
Power Density0.903 W/in³
More power-dense than 16% of the 425 Digital Mini servos in the database
Speed-to-Weight0.22462 (1/sec·g)
Faster than 19% of the 220 Digital Mini servos in the database
Speed-Torque Trade-off10.21
Better balanced than 66% of the 223 Digital Mini servos in the database
Torque Gain per Volt16.63%/V
More voltage-responsive (torque) than 57% of the 190 Digital Mini servos in the database
Speed Gain per Volt26.05%/V
More voltage-responsive (speed) than 93% of the 190 Digital Mini servos in the database
Voltage Range Width1.2 V
Wider voltage range than 36% of the 288 Digital Mini servos in the database

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