Graupner HGM SOR +T BBMG

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*Based on known specs.

Technical Specifications

Last Updated: 2026-10-10

Identity
Brand
Product Number	S4088
Category	Hobby
Performance
Torque	7.4V 173.61 oz-in 6.0V 145.83 oz-in 4.8V 116.67 oz-in Below Average
Speed	7.4V 0.11 sec/60° 6.0V 0.14 sec/60° 4.8V 0.16 sec/60° Below Average
Physical
Weight	2.47 ozBelow Average
Dimensions	L 1.575 in W 0.787 in H 1.591 in
Drivetrain
Motor Type	Brushless
Gears	Steel
Rotation/Support	Dual Bearings
Control & Signal
Modulation	Digital
Control System	PWM
Electrical & Environment
Operating Voltage	4.8–7.4 V
Connectivity
Connector	JR (Universal)

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Compatible Hardware

Amazon eBay

*Based on known specs.

Class Comparison

Torque	Below Average Stronger than 22% of 1043 Digital Standard servos at 4.8V
Speed	Below Average Faster than 33% of 1041 Digital Standard servos at 4.8V
Weight	Below Average Lighter than 34% of 1902 Digital Standard servos

Performance Analysis

Shaft Power	1.35–2.92 W
Power Density	1.480 W/in³ More power-dense than 31% of 1759 Digital Standard servos
Torque Density	1.6667 oz-in/g Stronger than 14% of 1036 Digital Standard servos
Torque-to-Volume Ratio	59.16 oz-in/in³ Denser torque than 20% of 1042 Digital Standard servos
Speed-to-Weight	0.08929 (1/sec·g) Faster than 23% of 1033 Digital Standard servos
Speed-Torque Trade-off	18.67 Better balanced than 34% of 1031 Digital Standard servos
Torque Gain per Volt	18.77%/V More voltage-responsive (torque) than 74% of 850 Digital Standard servos
Speed Gain per Volt	17.49%/V More voltage-responsive (speed) than 61% of 871 Digital Standard servos
Voltage Range Width	2.6 V Wider voltage range than 66% of 1539 Digital Standard servos