Servo Specs, Reviews, & Comparison Tool
Cirrus CS-70BB - Pro Ball Bearing Servo
Specifications
| Last Updated: | 2025-08-04 |
| Modulation: | (add) |
| Torque: |
4.8V: 45.80 oz-in (3.30 kg-cm) |
| Speed: |
4.8V: 0.12 sec/60° |
| Weight: | 1.55 oz (43.9 g) |
| Dimensions: |
Length:1.59 in (40.4 mm) Width:0.77 in (19.6 mm) Height:1.48 in (37.6 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 Cirrus CS-70BB is a high-quality, high-torque standard-sized analog servo that is enhanced with the precision and longevity of a dual ball bearing (BB) supported output shaft. It is designed for hobbyists who need a strong servo but also value a smooth, accurate, and reliable control feel. It is an excellent choice for the flight controls of large sport and scale aircraft, where its combination of power and slop-free precision contributes to a very stable and enjoyable flight experience. It is also a fantastic steering servo for 1/10 and 1/8 scale cars and trucks, where its strength and accuracy provide a significant upgrade over standard RTR servos.
- The character of the CS-70BB is its "strong and smooth" performance. It delivers the high torque needed for demanding applications, but the dual ball bearings ensure that this power is translated smoothly and accurately, without the play that can affect bushing-equipped servos. This gives the user a more direct and confident control feel. The durability of the ball bearing system also means this high level of performance is maintained for a much longer time, making it a very smart investment for an active hobbyist.
- In robotics, the CS-70BB is a great choice for larger projects that need both power and precision. It's ideal for building a large robotic arm that needs to perform its tasks with good, repeatable accuracy. It would also be a superb actuator for a large, stable camera platform or a scientific instrument where both strength and smooth, jitter-free motion are required. It offers a premium feel and higher precision for more demanding robotics applications.
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