HobbyKing 928BB

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*Based on known specs.

Technical Specifications

Last Updated: 2026-10-23

Identity
Brand
Product Number	HK-CS928BB
Category	Hobby
Performance
Torque	6.0V 27.76 oz-in 4.8V 24.98 oz-in Above Average
Speed	6.0V 0.13 sec/60° 4.8V 0.14 sec/60° Below Average
Physical
Weight	0.32 ozAverage
Dimensions	L 0.89 in W 0.45 in H 0.97 in
Drivetrain
Motor Type	Coreless
Gears	Plastic
Rotation/Support	Single Bearing
Control & Signal
Modulation	Analog
Rotational Range	80°
Control System	PWM
Electrical & Environment
Operating Voltage	4.8–6 V
Connectivity
Connector	JR (Universal) estimate

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Compatible Hardware

Amazon eBay

*Based on known specs.

Class Comparison

Torque	Above Average Stronger than 79% of 159 Analog Micro servos at 4.8V
Speed	Below Average Faster than 22% of 159 Analog Micro servos at 4.8V
Weight	Average Lighter than 43% of 334 Analog Micro servos

Performance Analysis

Shaft Power	0.33–0.39 W
Power Density	1.016 W/in³ More power-dense than 67% of 320 Analog Micro servos
Torque Density	2.7756 oz-in/g Stronger than 89% of 159 Analog Micro servos
Torque-to-Volume Ratio	64.30 oz-in/in³ Denser torque than 80% of 159 Analog Micro servos
Speed-to-Weight	0.79365 (1/sec·g) Faster than 36% of 159 Analog Micro servos
Speed-Torque Trade-off	3.50 Better balanced than 82% of 158 Analog Micro servos
Torque Gain per Volt	9.27%/V More voltage-responsive (torque) than 19% of 101 Analog Micro servos
Speed Gain per Volt	6.40%/V More voltage-responsive (speed) than 2% of 101 Analog Micro servos
Voltage Range Width	1.2 V Wider voltage range than 28% of 172 Analog Micro servos