Power HD B7-RS

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Technical Specifications

Last Updated: 2026-10-09

Identity
Brand
Category	Hobby
Performance
Torque	7.4V 180.57 oz-in 6.0V 138.90 oz-in Average
Speed	7.4V 0.06 sec/60° 7.4V 0.06 sec/60° 6.0V 0.07 sec/60° Above Average 6.0V 0.07 sec/60° Above Average
Physical
Weight	1.69 ozAverage
Dimensions	L 1.614 in W 0.787 in H 1.039 in
Drivetrain
Motor Type	Brushless
Gears	Titanium / Steel
Rotation/Support	Dual Bearings
Control & Signal
Modulation	Digital
Neutral Position	1520 µs
Refresh Rate	333 Hz
Programmable	Yes
Electrical & Environment
Operating Voltage	6–8.4 V
Temperature	-10–60 °C
Connectivity
Wire Length	80 mm
Origin
Country of Origin	China

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Compatible Hardware

Amazon eBay

*Based on known specs.

Class Comparison

Torque	Average Stronger than 52% of 136 Digital Low Profile servos at 6.0V
Speed	Above Average Faster than 87% of 135 Digital Low Profile servos at 6.0V
Weight	Average Lighter than 64% of 251 Digital Low Profile servos

Performance Analysis

Shaft Power	3.67–5.56 W
Power Density	4.216 W/in³ More power-dense than 57% of 215 Digital Low Profile servos
Torque Density	2.8938 oz-in/g Stronger than 54% of 136 Digital Low Profile servos
Torque-to-Volume Ratio	105.25 oz-in/in³ Denser torque than 56% of 136 Digital Low Profile servos
Speed-to-Weight	0.29762 (1/sec·g) Faster than 93% of 135 Digital Low Profile servos
Speed-Torque Trade-off	9.72 Better balanced than 31% of 134 Digital Low Profile servos
Voltage Range Width	2.4 V Wider voltage range than 47% of 223 Digital Low Profile servos