Servo Specs, Reviews, & Comparison Tool
Blue Bird BMS-630MG - Super Strong Servo
Specifications
| Last Updated: | 2025-08-04 |
| Modulation: | Analog |
| Torque: |
4.8V: 181.00 oz-in (13.03 kg-cm) 6.0V: 195.00 oz-in (14.04 kg-cm) |
| Speed: |
4.8V: 0.17 sec/60° 6.0V: 0.15 sec/60° |
| Weight: | 1.73 oz (49.0 g) |
| Dimensions: |
Length:1.60 in (40.6 mm) Width:0.79 in (20.1 mm) Height:1.70 in (43.2 mm) |
| Motor Type: | (add) |
| Gear Type: | (add) |
| Rotation/Support: | (add) |
| Rotational Range: | (add) |
| Pulse Cycle: | (add) |
| Pulse Width: | (add) |
| Connector Type: | (add) |
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Notes
- The discontinued Blue Bird BMS-630MG is a high-torque, standard-sized analog servo that is purpose-built for strength and durability. Its primary features are a powerful motor and a robust all-metal gear (MG) train, a combination designed to provide maximum holding power and resistance to physical stress. This servo is not focused on being the fastest, but rather on being one of the strongest and toughest in its class. It is an extremely popular choice for applications where brute force is needed, such as the steering on a heavy 1/8 scale monster truck, the throttle and brake on a large gas-powered car, or for operating large flaps on a giant-scale aircraft.
- The defining characteristic of the BMS-630MG is its raw, unadulterated torque. It has the muscle to turn the large, heavy tires of a monster truck even when stationary on a high-grip surface. It can apply immense clamping force on the disc brakes of a gas-powered car. On a large airplane, it can hold the flaps in position against significant aerodynamic loads. The heavy-duty metal gears ensure that it can deliver this torque reliably and withstand the high-shock environments common in RC monster trucking and racing. It is a true powerhouse, valued for its strength and resilience.
- For roboticists, the BMS-630MG is the go-to choice when a project requires a massive amount of torque in a standard, affordable package. It is an ideal actuator for a heavy-lifting robotic arm, for a powerful clamping gripper, or for the main drive joints on a very large, heavy walking robot. Its immense holding power is also useful for any application where the robot must resist a strong external force. It's a simple, reliable way to bring serious muscle to a robotics project.
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