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Graupner HBS 790 BBMG
Low Profile

Graupner HBS 790 BBMG

Compatible Hardware

*Based on known specs.

Technical Specifications

Last Updated: 2026-07-10
Identity
Brand Graupner
Product Number 7987
Category Hobby
Performance
Torque
7.4V 97.22 oz-in
6.0V 84.72 oz-in
4.8V 62.50 oz-in
Speed
7.4V 0.07 sec/60°
6.0V 0.08 sec/60°
4.8V 0.10 sec/60°
Running Current (add)
Stall Current (add)
Physical
Weight 1.52 oz
Dimensions L 1.57 in
W 0.77 in
H 1.00 in
Case Material (add)
Drivetrain
Motor Type Brushless
Motor Drive (add)
Gears Steel
Gear Spline/Teeth (add)
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 2500 ms
Pulse Width (add)
Neutral Position 1500 µs
Dead Band (add)
Refresh Rate (add)
Angle Sensor (add)
Control System PWM
Programmable (add)
Signal Voltage (add)
Electrical & Environment
Operating Voltage 4.8–8.4 V
Power Source (add)
Regulator Type (add)
Temperature (add)
Water Rating (add)
Certification (add)
Idle Current (add)
Connectivity
Connector JR (Universal)
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 1.16–2.57 W
Torque Density1.4535 oz-in/g
Stronger than 8% of the 96 Digital Low Profile servos in the database
Torque-to-Volume Ratio51.50 oz-in/in³
Denser torque than 9% of the 96 Digital Low Profile servos in the database
Power Density2.116 W/in³
More power-dense than 39% of the 188 Digital Low Profile servos in the database
Speed-to-Weight0.23256 (1/sec·g)
Faster than 66% of the 96 Digital Low Profile servos in the database
Speed-Torque Trade-off6.25
Better balanced than 14% of the 94 Digital Low Profile servos in the database
Voltage Range Width3.6 V
Wider voltage range than 88% of the 165 Digital Low Profile servos in the database

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