Graupner HVC 690 BBMG

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*Based on known specs.

Technical Specifications

Last Updated: 2026-10-26

Identity
Brand
Product Number	S4064
Category	Hobby
Performance
Torque	7.4V 86.11 oz-in 6.0V 75.00 oz-in 4.8V 62.50 oz-in Bottom 10%
Speed	7.4V 0.08 sec/60° 6.0V 0.11 sec/60° 4.8V 0.12 sec/60° Above Average
Physical
Weight	1.34 ozTop 10%
Dimensions	L 1.378 in W 0.63 in H 1.358 in
Drivetrain
Motor Type	Coreless
Gears	Steel
Rotation/Support	Dual Bearings
Control & Signal
Modulation	Digital
Control System	PWM
Programmable	Yes
Electrical & Environment
Operating Voltage	4.8–8.4 V
Connectivity
Connector	JR (Universal)

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Compatible Hardware

Amazon eBay

*Based on known specs.

Class Comparison

Torque	Bottom 10% Stronger than 8% of 1060 Digital Standard servos at 4.8V
Speed	Above Average Faster than 66% of 1045 Digital Standard servos at 4.8V
Weight	Top 10% Lighter than 96% of 1880 Digital Standard servos

Performance Analysis

Shaft Power	0.96–2.12 W
Power Density	1.801 W/in³ More power-dense than 39% of 1768 Digital Standard servos
Torque Density	1.6447 oz-in/g Stronger than 14% of 1053 Digital Standard servos
Torque-to-Volume Ratio	53.01 oz-in/in³ Denser torque than 17% of 1058 Digital Standard servos
Speed-to-Weight	0.21930 (1/sec·g) Faster than 90% of 1038 Digital Standard servos
Speed-Torque Trade-off	7.50 Better balanced than 9% of 1034 Digital Standard servos
Voltage Range Width	3.6 V Wider voltage range than 85% of 1560 Digital Standard servos