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Futaba BLS252
Standard Discontinued

Futaba BLS252

Compatible Hardware

*Spec is estimated from brand data.

Technical Specifications

Last Updated: 2026-09-16
Identity
Brand Futaba
Product Number FUTM0522
Category Hobby
Discontinued Yes
Performance
Torque
6.0V 175.00 oz-in
4.8V 139.00 oz-in Below Average
Speed
6.0V 0.13 sec/60°
4.8V 0.16 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 21 T estimate
Rotation Mode Positional
Rotation/Support Dual Bearings
Control & Signal
Modulation Digital
Direction Counterclockwise
Rotational Range 90°
Pulse Cycle 5 ms
Pulse Width 1120-1920 µs
Neutral Position 1520 µs
Refresh Rate 200 Hz
Angle Sensor Potentiometer
Control System PWM
Signal Voltage 3-5V
Electrical & Environment
Operating Voltage 4.8–6 V
Temperature -20–60 °C
Connectivity
Connector JR (Universal)
Wire Length 305 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 31% of 1043 Digital Standard servos at 4.8V
SpeedAverage
Faster than 36% of 1041 Digital Standard servos at 4.8V
WeightAbove Average
Lighter than 67% of 1902 Digital Standard servos

Performance Analysis

Shaft Power 1.61–2.49 W
Power Density1.375 W/in³
More power-dense than 28% of 1759 Digital Standard servos
Torque Density2.3966 oz-in/g
Stronger than 30% of 1036 Digital Standard servos
Torque-to-Volume Ratio76.76 oz-in/in³
Denser torque than 30% of 1042 Digital Standard servos
Speed-to-Weight0.10776 (1/sec·g)
Faster than 44% of 1033 Digital Standard servos
Speed-Torque Trade-off22.24
Better balanced than 40% of 1031 Digital Standard servos
Torque Gain per Volt21.58%/V
More voltage-responsive (torque) than 88% of 850 Digital Standard servos
Speed Gain per Volt19.22%/V
More voltage-responsive (speed) than 76% of 871 Digital Standard servos
Voltage Range Width1.2 V
Wider voltage range than 23% of 1539 Digital Standard servos

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