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Graupner DES 657 BB
Mini

Graupner DES 657 BB

Compatible Hardware

*Spec is estimated from brand data.

Technical Specifications

Last Updated: 2026-10-24
Identity
Brand Graupner
Product Number S7935
Category Hobby
Performance
Torque
6.0V 90.63 oz-in
4.8V 73.64 oz-in Above Average
Speed
6.0V0.15 sec/60°
Physical
Weight 0.78 ozAbove Average
Dimensions L 1.26 in
W 0.63 in
H 1.32 in
Drivetrain
Motor Type 3-pole
Gears Karbonite
Gear Spline/Teeth 25 T estimate
Rotation/Support Dual Bearings
Control & Signal
Modulation Digital
Rotational Range 90°
Neutral Position 1500 µs
Programmable Yes
Electrical & Environment
Operating Voltage 4.8–6 V
Idle Current 0.007 A
Connectivity
Connector JR (Universal)

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.

Class Comparison

TorqueAbove Average
Stronger than 68% of 290 Digital Mini servos at 4.8V
WeightAbove Average
Lighter than 66% of 505 Digital Mini servos

Performance Analysis

Shaft Power 1.12 W
Power Density1.066 W/in³
More power-dense than 21% of 482 Digital Mini servos
Torque Density3.3473 oz-in/g
Stronger than 81% of 286 Digital Mini servos
Torque-to-Volume Ratio70.28 oz-in/in³
Denser torque than 45% of 288 Digital Mini servos
Speed-to-Weight0.30303 (1/sec·g)
Speed-Torque Trade-off11.05
Torque Gain per Volt19.23%/V
More voltage-responsive (torque) than 68% of 257 Digital Mini servos
Voltage Range Width1.2 V
Wider voltage range than 35% of 405 Digital Mini servos

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