Lifespan of Servo Motor

Hello,

I recently purchased a FEETECH Mini Servo FT1117M-FB with Position Feedback. I am running this motor +/-20degs at 2Hz for an intended100K cycles. After every 10 cycles, I have the position reset to its home. This is needed in order for syncing purposes with another motor. The reset moves the motor less than a degree as it is already close to the home position just not quite there yet. I am running power from a 5.0V Teensy 4.1 Microcontroller.

However, after about 8K cycles, the motor begins to stutter and it is audibly louder. The motor is not hot. I don't believe it is a code issue since I have been running the same code for a while with <1000 cycles at a time with no problems. The servo would run smoothly.

1. What is the lifespan of these motors?
2. Am I asking them to do too much?
3. What would be a good alternative motor to handle such tests?

Thanks!

Link to Pololu Mini Servo FT1117M-FB

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