Introduction
When buying a servo motor, terms like rated torque and peak torque can be confusing. This article simplifies these concepts for hobbyists and consumers, using GXServo as a reference.
Rated Torque: What You Can Expect Daily
Definition:
Rated torque is the “everyday performance” level—the torque the servo can handle without strain.
GXServo Example:
A GXServo GS-9020MG (rated 15 kg-cm at 6.0V) is ideal for standard RC cars where smooth, consistent movement is needed.
Why It Matters for Buyers:
- Longevity – Operating within rated torque extends servo life.
- Heat Management – Exceeding it causes overheating, leading to failure.
Peak Torque: The “Emergency Power” Mode
Definition:
Peak torque is like a turbo boost—useful for quick, high-force actions but not sustainable.
GXServo Example:
The GS-9020MG might peak at 18 kg-cm, useful for:
- RC Crawlers climbing over obstacles.
- Robot Combat where sudden force is needed.
Risks of Overusing Peak Torque:
- Gear Stripping – Sudden jolts can damage internal gears.
- Motor Burnout – Prolonged peak usage degrades components.
Conclusion
For hobbyists, rated torque defines normal use, while peak torque is for emergencies. GXServo provides clear specs, helping buyers match servos to their needs.
