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Futaba BLS451
Standard Discontinued

Futaba BLS451

Compatible Hardware

*Spec is estimated from brand data.

Technical Specifications

Last Updated: 2026-09-14
Identity
Brand Futaba
Product Number FUTM0552
Category Hobby
Discontinued Yes
Performance
Torque
6.0V 147.00 oz-in
4.8V 118.00 oz-in Below Average
Speed
6.0V 0.10 sec/60°
4.8V 0.13 sec/60° Average
Physical
Weight 2.05 ozAbove Average
Dimensions L 1.57 in
W 0.79 in
H 1.46 in
Drivetrain
Motor Type Brushless
Gears Metal
Gear Spline/Teeth 25 T estimate
Rotation Mode Positional
Rotation/Support Dual Bearings
Control & Signal
Modulation Digital
Rotational Range 120°
Pulse Width 920-2120 µs
Neutral Position 1520 µs
Refresh Rate 200 Hz
Angle Sensor Potentiometer
Programmable No
Electrical & Environment
Operating Voltage 4.8–6 V
Water Rating Splashproof
Connectivity
Connector JR (Universal)
Wire Length 200 mm

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.

Class Comparison

TorqueBelow Average
Stronger than 22% of 1061 Digital Standard servos at 4.8V
SpeedAverage
Faster than 60% of 1044 Digital Standard servos at 4.8V
WeightAbove Average
Lighter than 67% of 1879 Digital Standard servos

Performance Analysis

Shaft Power 1.68–2.72 W
Power Density1.501 W/in³
More power-dense than 32% of 1768 Digital Standard servos
Torque Density2.0345 oz-in/g
Stronger than 22% of 1054 Digital Standard servos
Torque-to-Volume Ratio65.16 oz-in/in³
Denser torque than 23% of 1059 Digital Standard servos
Speed-to-Weight0.13263 (1/sec·g)
Faster than 63% of 1037 Digital Standard servos
Speed-Torque Trade-off15.34
Better balanced than 25% of 1035 Digital Standard servos
Torque Gain per Volt20.48%/V
More voltage-responsive (torque) than 79% of 873 Digital Standard servos
Speed Gain per Volt25.01%/V
More voltage-responsive (speed) than 96% of 873 Digital Standard servos
Voltage Range Width1.2 V
Wider voltage range than 23% of 1560 Digital Standard servos

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