Graupner DES 131SH

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*Based on known specs.

Technical Specifications

Last Updated: 2026-10-26

Identity
Brand
Product Number	7902.SH
Category	Hobby
Discontinued	Yes
Performance
Torque	6.0V 9.72 oz-in 4.8V 8.33 oz-in Bottom 10%
Speed	6.0V 0.06 sec/60° 4.8V 0.07 sec/60° Top 10%
Physical
Weight	0.19 ozTop 10%
Dimensions	L 0.787 in W 0.441 in H 0.815 in
Drivetrain
Motor Type	Brushed
Gears	Karbonite
Gear Spline/Teeth	15 T
Rotation/Support	Single Bearing
Control & Signal
Modulation	Digital
Control System	PWM
Programmable	Yes
Electrical & Environment
Operating Voltage	4.8–6 V
Connectivity
Connector	JST-SH

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Compatible Hardware

Amazon eBay

*Based on known specs.

Class Comparison

Torque	Bottom 10% Stronger than 3% of 349 Digital Micro servos at 4.8V
Speed	Top 10% Faster than 92% of 347 Digital Micro servos at 4.8V
Weight	Top 10% Lighter than 95% of 597 Digital Micro servos

Performance Analysis

Shaft Power	0.22–0.30 W
Power Density	1.059 W/in³ More power-dense than 19% of 563 Digital Micro servos
Torque Density	1.5426 oz-in/g Stronger than 10% of 349 Digital Micro servos
Torque-to-Volume Ratio	29.44 oz-in/in³ Denser torque than 5% of 345 Digital Micro servos
Speed-to-Weight	2.64550 (1/sec·g) Faster than 99% of 347 Digital Micro servos
Speed-Torque Trade-off	0.58 Better balanced than 1% of 345 Digital Micro servos
Torque Gain per Volt	13.91%/V More voltage-responsive (torque) than 31% of 290 Digital Micro servos
Speed Gain per Volt	13.89%/V More voltage-responsive (speed) than 25% of 295 Digital Micro servos
Voltage Range Width	1.2 V Wider voltage range than 27% of 496 Digital Micro servos