Servo Specs, Reviews, & Comparison Tool
Expert SL451 - Mini High Speed Servo
Specifications
| Last Updated: | 2025-08-06 |
| Modulation: | (add) |
| Torque: |
4.8V: 48.00 oz-in (3.46 kg-cm) |
| Speed: |
4.8V: 0.18 sec/60° |
| Weight: | 0.80 oz (22.7 g) |
| Dimensions: |
Length:1.30 in (33.0 mm) Width:0.58 in (14.7 mm) Height:1.03 in (26.2 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 Expert SL451 is a specialized, high-speed analog servo in a standard-size package, engineered for competitive applications where a rapid response is paramount. As an Expert brand servo, it combines this high speed with a high standard of quality and precision. It is a premier choice for tail rotor control on .50 and .60 size helicopters, where its velocity allows for a very stable, high-performance tail. It is also an excellent steering servo for 1/10 scale on-road racing cars, where its immediate response allows for lightning-fast directional changes and precise control at high speeds.
- The defining characteristic of the SL451 is its refined speed. It doesn't just move quickly; it moves with a smoothness and precision that is characteristic of the Expert brand. This is often achieved through the use of high-quality components like a coreless motor and ball bearings. The result is a servo that feels incredibly responsive yet very precise, giving competitors a tangible performance edge. It is a tool for the serious racer or pilot who needs the best possible response from their control system.
- For roboticists, the SL451 is an excellent choice for tasks that require a combination of high speed and high precision. It would be ideal for a high-speed vision-guided tracking system or for the joints of a very fast robotic arm. For any robotics application where both rapid movement and accurate, repeatable positioning are critical, the SL451 provides a superior level of performance."
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