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Blue Bird BMS-661MG+HS
Standard Discontinued

Blue Bird BMS-661MG+HS

Compatible Hardware

*Spec is estimated from brand data.

Technical Specifications

Last Updated: 2026-07-28
Identity
Brand Blue Bird
Product Number (add)
Category Hobby
Discontinued Yes
Performance
Torque
6.0V 89.00 oz-in
4.8V 69.00 oz-in
Speed
6.0V 0.08 sec/60°
4.8V 0.10 sec/60°
Running Current (add)
Stall Current (add)
Physical
Weight 1.73 oz
Dimensions L 1.59 in
W 0.79 in
H 1.52 in
Case Material (add)
Drivetrain
Motor Type (add)
Motor Drive (add)
Gears Metal
Gear Spline/Teeth 25 T estimate
Shaft Size (add)
Rotation Mode (add)
Rotation/Support Dual Bearings
Backlash (add)
Control & Signal
Modulation Analog
Direction (add)
Rotational Range 120°
Mechanical Limit (add)
Pulse Cycle 125 ms
Pulse Width (add)
Neutral Position 1520 µs
Dead Band (add)
Refresh Rate (add)
Angle Sensor (add)
Control System PWM
Programmable (add)
Signal Voltage (add)
Electrical & Environment
Operating Voltage 4.8–6 V
Power Source (add)
Regulator Type (add)
Temperature (add)
Water Rating (add)
Certification (add)
Idle Current (add)
Connectivity
Connector JR (Universal)
Wire Length (add)
Origin
Country of Origin (add)

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.

Performance Analysis

Shaft Power 1.28–2.06 W
Torque Density1.4082 oz-in/g
Stronger than 40% of the 156 Analog Standard servos in the database
Torque-to-Volume Ratio36.28 oz-in/in³
Denser torque than 39% of the 156 Analog Standard servos in the database
Power Density1.082 W/in³
More power-dense than 84% of the 421 Analog Standard servos in the database
Speed-to-Weight0.20408 (1/sec·g)
Faster than 95% of the 155 Analog Standard servos in the database
Speed-Torque Trade-off6.90
Better balanced than 6% of the 155 Analog Standard servos in the database
Torque Gain per Volt24.15%/V
More voltage-responsive (torque) than 88% of the 120 Analog Standard servos in the database
Speed Gain per Volt20.83%/V
More voltage-responsive (speed) than 82% of the 121 Analog Standard servos in the database
Voltage Range Width1.2 V
Wider voltage range than 76% of the 185 Analog Standard servos in the database

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