Graupner DES 678 BBMG

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*Spec is estimated from brand data.

Technical Specifications

Last Updated: 2026-10-23

Identity
Brand
Product Number	S7943
Category	Hobby
Performance
Torque	6.0V 75.01 oz-in 4.8V 59.73 oz-in Average
Speed	6.0V 0.17 sec/60° 4.8V 0.21 sec/60° Bottom 10%
Physical
Weight	0.99 ozAverage
Dimensions	L 1.26 in W 0.63 in H 1.30 in
Drivetrain
Motor Type	Coreless
Gears	Metal
Gear Spline/Teeth	25 T estimate
Rotation/Support	Dual Bearings
Control & Signal
Modulation	Digital
Rotational Range	90°
Programmable	Yes
Electrical & Environment
Operating Voltage	4.8–6 V
Idle Current	0.007 A
Connectivity
Connector	JR (Universal)

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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.

Compatible Hardware

Amazon eBay

*Spec is estimated from brand data.

Class Comparison

Torque	Average Stronger than 53% of 290 Digital Mini servos at 4.8V
Speed	Bottom 10% Faster than 4% of 293 Digital Mini servos at 4.8V
Weight	Average Lighter than 38% of 505 Digital Mini servos

Performance Analysis

Shaft Power	0.53–0.84 W
Power Density	0.815 W/in³ More power-dense than 10% of 482 Digital Mini servos
Torque Density	2.1332 oz-in/g Stronger than 41% of 286 Digital Mini servos
Torque-to-Volume Ratio	57.88 oz-in/in³ Denser torque than 31% of 288 Digital Mini servos
Speed-to-Weight	0.17007 (1/sec·g) Faster than 4% of 289 Digital Mini servos
Speed-Torque Trade-off	12.54 Better balanced than 82% of 288 Digital Mini servos
Torque Gain per Volt	21.32%/V More voltage-responsive (torque) than 81% of 257 Digital Mini servos
Speed Gain per Volt	22.72%/V More voltage-responsive (speed) than 84% of 262 Digital Mini servos
Voltage Range Width	1.2 V Wider voltage range than 33% of 405 Digital Mini servos