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Racerstar BL7146HV
Standard

Racerstar BL7146HV

Compatible Hardware

*Based on known specs.

Technical Specifications

Last Updated: 2026-10-10
Identity
Brand Racerstar
Category Hobby
Performance
Torque
7.4V 638.82 oz-in
6.0V 536.05 oz-in Top 10%
Speed
7.4V 0.10 sec/60°
6.0V 0.12 sec/60° Average
Physical
Weight 2.50 ozBelow Average
Dimensions L 1.59 in
W 0.81 in
H 1.42 in
Drivetrain
Motor Type Brushless
Gears Metal
Rotation Mode Positional
Rotation/Support Dual Bearings
Control & Signal
Modulation Digital
Rotational Range 180°
Pulse Width 500-2500 µs
Neutral Position 1520 µs
Dead Band 2 µs
Control System PWM
Electrical & Environment
Operating Voltage 6–7.4 V
Connectivity
Connector JR (Universal)
Wire Length 265 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

TorqueTop 10%
Stronger than 94% of 1043 Digital Standard servos at 6.0V
SpeedAverage
Faster than 58% of 1041 Digital Standard servos at 6.0V
WeightBelow Average
Lighter than 29% of 1902 Digital Standard servos

Performance Analysis

Shaft Power 8.26–11.81 W
Power Density6.459 W/in³
More power-dense than 87% of 1759 Digital Standard servos
Torque Density7.5500 oz-in/g
Stronger than 95% of 1036 Digital Standard servos
Torque-to-Volume Ratio293.11 oz-in/in³
Denser torque than 94% of 1042 Digital Standard servos
Speed-to-Weight0.11737 (1/sec·g)
Faster than 51% of 1033 Digital Standard servos
Speed-Torque Trade-off64.33
Better balanced than 86% of 1031 Digital Standard servos
Torque Gain per Volt13.69%/V
More voltage-responsive (torque) than 36% of 850 Digital Standard servos
Speed Gain per Volt14.29%/V
More voltage-responsive (speed) than 42% of 871 Digital Standard servos
Voltage Range Width1.4 V
Wider voltage range than 25% of 1539 Digital Standard servos
Dead-Band-to-Pulse-Width Ratio0.0010
Finer dead band than 65% of 468 Digital Standard servos

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