KST BLS159

Search Amazon Search eBay

Compatible Hardware

Amazon eBay

*Based on known specs.

Technical Specifications

Last Updated: 2026-10-10

Identity
Brand
Product Number	BLS159
Category	Hobby
Performance
Torque	8.4V 236.09 oz-in 7.4V 208.31 oz-in 6.0V 166.65 oz-in Above Average 4.8V 111.10 oz-in
Speed	7.4V0.11 sec/60°
Physical
Weight	1.94 ozBelow Average
Dimensions	L 1.57 in W 0.79 in H 1.04 in
Case Material	Aluminum
Drivetrain
Motor Type	Brushless
Gears	Steel
Rotation/Support	Dual Bearings
Control & Signal
Modulation	Digital
Rotational Range	100°
Pulse Cycle	3 ms
Pulse Width	1000-2000 µs
Neutral Position	1520 µs
Refresh Rate	333 Hz
Angle Sensor	Potentiometer
Control System	PWM
Programmable	Yes
Electrical & Environment
Operating Voltage	6–8.4 V
Connectivity
Connector	JR (Universal) estimate

Submit Missing Data Report an Error

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

*Based on known specs.

Class Comparison

Torque	Above Average Stronger than 68% of 136 Digital Low Profile servos at 6.0V
Weight	Below Average Lighter than 32% of 251 Digital Low Profile servos

Performance Analysis

Shaft Power	3.50 W
Power Density	2.715 W/in³ More power-dense than 43% of 215 Digital Low Profile servos
Torque Density	3.0300 oz-in/g Stronger than 59% of 136 Digital Low Profile servos
Torque-to-Volume Ratio	129.20 oz-in/in³ Denser torque than 72% of 136 Digital Low Profile servos
Speed-to-Weight	0.16529 (1/sec·g)
Speed-Torque Trade-off	18.33
Torque Gain per Volt	17.36%/V More voltage-responsive (torque) than 61% of 115 Digital Low Profile servos
Voltage Range Width	2.4 V Wider voltage range than 49% of 223 Digital Low Profile servos