Servo Specs, Reviews, & Comparison Tool
Blue Bird BMS-306 - Hi Performance Micro Servo
Specifications
| Last Updated: | 2025-08-04 |
| Modulation: | Digital |
| Torque: |
4.8V: 12.00 oz-in (0.86 kg-cm) |
| Speed: |
4.8V: 0.11 sec/60° |
| Weight: | 0.23 oz (6.5 g) |
| Dimensions: |
Length:0.86 in (21.8 mm) Width:0.40 in (10.2 mm) Height:0.87 in (22.1 mm) |
| Motor Type: | (add) |
| Gear Type: | (add) |
| Rotation/Support: | Single Bearing |
| Rotational Range: | (add) |
| Pulse Cycle: | (add) |
| Pulse Width: | (add) |
| Connector Type: | (add) |
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Notes
- The discontinued Blue Bird BMS-306 is a robust and reliable micro-class analog servo that serves as a significant step up from the ultra-light pico servos. It is designed for slightly larger and more demanding aircraft, such as outdoor park flyers, small electric gliders, and as a durable cyclic servo for some micro-helicopters. The BMS-306 provides a noticeable increase in both power and physical presence, giving it the ability to move larger control surfaces with more authority and to better withstand the rigors of outdoor flying. It uses a durable carbonite gear train and a simple bushing on the output shaft, creating a cost-effective and dependable package for everyday sport flying.
- The BMS-306 is widely regarded as a workhorse servo. It is known for its long-lasting performance and its ability to function reliably without needing special attention. For the hobbyist who enjoys building and flying a variety of park-flyer sized models, the BMS-306 is a fantastic, all-around choice. Its performance is smooth and predictable, and it strikes an excellent balance between cost, weight, and capability. It is a foundational component for a huge segment of the RC flying hobby, valued for its straightforward, dependable nature.
- In robotics, the BMS-306 is a versatile and affordable actuator for a wide range of small-scale projects. It has enough power to be used in the primary limb joints of a small walking robot or to create a functional gripper capable of lifting lightweight objects. Its simple bushing design is perfectly adequate for applications where the servo is not under constant, heavy, or dynamic side-loads. For students and hobbyists prototyping new robotic concepts, the BMS-306 offers a great blend of capability and affordability, making it an ideal choice for experimentation.
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