Feetech FT870B

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*Spec is estimated from brand data.

Technical Specifications

Last Updated: 2026-10-10

Identity
Brand
Product Number	FT-870B-C001
Category	Hobby
Performance
Torque	8.4V1,041.75 oz-in
Speed	8.4V 0.14 sec/60° 8.4V 0.14 sec/60°
Physical
Weight	2.78 ozBelow Average
Dimensions	L 1.575 in W 0.787 in H 1.535 in
Drivetrain
Motor Type	Brushless
Gears	Titanium
Gear Spline/Teeth	25 T estimate
Rotation Mode	Positional
Rotation/Support	Single Bearing
Control & Signal
Modulation	Digital
Rotational Range	180°
Pulse Width	500-2500 µs
Neutral Position	1500 µs
Dead Band	4 µs
Control System	PWM
Electrical & Environment
Operating Voltage	6–9 V
Idle Current	0.026 A
Connectivity
Wire Length	300 mm
Origin
Country of Origin	China

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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.

Compatible Hardware

Amazon eBay

*Spec is estimated from brand data.

Class Comparison

Weight

Below Average

Lighter than 14% of 1902 Digital Standard servos

Performance Analysis

Shaft Power	13.56 W
Power Density	7.125 W/in³ More power-dense than 91% of 1759 Digital Standard servos
Torque Density	13.2202 oz-in/g
Torque-to-Volume Ratio	547.17 oz-in/in³
Speed-to-Weight	0.08937 (1/sec·g)
Speed-Torque Trade-off	147.94
Voltage Range Width	3.0 V Wider voltage range than 68% of 1539 Digital Standard servos
Dead-Band-to-Pulse-Width Ratio	0.0020 Finer dead band than 28% of 468 Digital Standard servos