KO Propo BSx4S-Grasper

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*Spec is estimated from brand data.

Technical Specifications

Last Updated: 2026-10-10

Identity
Brand
Product Number	30223
Category	Hobby
Performance
Torque	8.4V 694.37 oz-in 7.4V 633.27 oz-in 6.0V 518.00 oz-in Top 10%
Speed	8.4V 0.10 sec/60° 7.4V 0.12 sec/60° 6.0V 0.15 sec/60° Average
Physical
Weight	2.72 ozBelow Average
Dimensions	L 1.591 in W 0.787 in H 1.476 in
Case Material	Aluminum
Drivetrain
Motor Type	Brushless
Gears	Metal
Gear Spline/Teeth	23 T estimate
Rotation/Support	Dual Bearings
Control & Signal
Control System	PWM
Programmable	Yes
Electrical & Environment
Operating Voltage	6–7.4 V
Power Source	LiPo / LiFe / Ni-MH
Connectivity
Wire Length	230 mm
Origin
Country of Origin	Japan

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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

Torque	Top 10% Stronger than 94% of 1294 Standard servos at 6.0V
Speed	Average Faster than 44% of 1290 Standard servos at 6.0V
Weight	Below Average Lighter than 14% of 2538 Standard servos

Performance Analysis

Shaft Power	6.39–12.84 W
Power Density	6.947 W/in³ 1st-highest power density of 112 KO Propo servos
Torque Density	6.7273 oz-in/g 1st-highest torque density of 38 KO Propo servos
Torque-to-Volume Ratio	280.28 oz-in/in³ 1st-highest torque-to-volume ratio of 38 KO Propo servos
Speed-to-Weight	0.08658 (1/sec·g) Faster than 0% of 38 KO Propo servos
Speed-Torque Trade-off	77.70 1st-highest speed-torque trade-off of 38 KO Propo servos
Torque Gain per Volt	15.89%/V More voltage-responsive (torque) than 64% of 29 KO Propo servos
Speed Gain per Volt	17.86%/V 3rd-highest speed gain per volt of 29 KO Propo servos
Voltage Range Width	1.4 V 2nd-highest voltage range width of 38 KO Propo servos