Futaba BLS254

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*Spec is estimated from brand data.

Technical Specifications

Last Updated: 2026-09-16

Identity
Brand
Product Number	FUTM0524
Category	Hobby
Discontinued	Yes
Performance
Torque	4.8V53.00 oz-inBottom 10%
Speed	4.8V0.06 sec/60°Top 10%
Physical
Weight	1.80 ozAbove Average
Dimensions	L 1.57 in W 0.79 in H 1.45 in
Case Material	Plastic / Aluminum
Drivetrain
Motor Type	Brushless
Gears	Metal
Gear Spline/Teeth	21 T estimate
Rotation Mode	Positional
Rotation/Support	Dual Bearings
Control & Signal
Modulation	Digital
Neutral Position	1520 µs
Control System	PWM
Electrical & Environment
Operating Voltage	4.8–6 V
Water Rating	Water Resistant
Connectivity
Connector	JR (Universal)

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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	Bottom 10% Stronger than 4% of 1060 Digital Standard servos at 4.8V
Speed	Top 10% Faster than 95% of 1045 Digital Standard servos at 4.8V
Weight	Above Average Lighter than 85% of 1880 Digital Standard servos

Performance Analysis

Shaft Power	1.63 W
Power Density	0.908 W/in³ More power-dense than 15% of 1768 Digital Standard servos
Torque Density	1.0392 oz-in/g Stronger than 4% of 1053 Digital Standard servos
Torque-to-Volume Ratio	29.47 oz-in/in³ Denser torque than 4% of 1058 Digital Standard servos
Speed-to-Weight	0.32680 (1/sec·g) Faster than 97% of 1038 Digital Standard servos
Speed-Torque Trade-off	3.18 Better balanced than 3% of 1034 Digital Standard servos
Voltage Range Width	1.2 V Wider voltage range than 24% of 1560 Digital Standard servos