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Blue Bird BMS-631MG
Standard Discontinued

Blue Bird BMS-631MG

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 86.00 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)
Shaft Power 1.28–1.99 W
Physical
Weight 1.62 oz
Dimensions L 1.60 in
W 0.80 in
H 1.50 in
Case Material (add)
Drivetrain
Motor Type (add)
Motor Drive (add)
Gears Metal
Gear Spline/Teeth 25 T estimate
Rotation Mode (add)
Rotation/Support Dual Bearings
Backlash (add)
Control & Signal
Modulation Analog
Direction (add)
Rotational Range (add)
Mechanical Limit (add)
Pulse Cycle (add)
Pulse Width (add)
Neutral Position (add)
Dead Band (add)
Refresh Rate (add)
Angle Sensor (add)
Control System (add)
Programmable (add)
Signal Voltage (add)
Electrical & Environment
Operating Voltage (add)
Power Source (add)
Regulator Type (add)
Temperature (add)
Water Rating (add)
Certification (add)
Idle Current (add)
Connectivity
Connector JR (Universal) estimate
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.

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Reviews (2)

  • Dick, ROC Ter AA, Helmond, NL

    July 5, 2013

    Application(s): industrial delta robot for educational purposes

    Comments: Used with PC application in C# controlling the servo by an SD20 servo controller and i2c/USB from Robot Electronics UK

    - Powerful low priced servo.
    - The accuracy could be better for this application. Very small steps are not executed but delayed to a larger step.
    - High surge current of 3 Amps and up.
    - A bit noisy unsubtle movement

  • luke662

    April 13, 2012

    Application(s): Off roaders

    Comments: These are brilliant servos with fantastic speeds and tourqe for the money. I have been using them for a few years.

    The only downside i have found is the plastic mounting lugs can crack if you over tighten the servo mount screw but this is rare.

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