Question on using rubber grommets on servos
 

Good morning,

I never used to put the rubber grommets on my servos but figured I give it a try. Are you supposed to crank hard on these to get them to be real tight? I install the grommets and then place the mounting eyelets through the rubber holes. I just find that it is difficult to get a tight fit when using these. What is the proper way to install/tighten these so that the servo is secure?

Thanks!

The grommets give the servo some isolation from vibration on models using internal combustion (IC) engines. Most people don't use them on electric powered models.

The servo should fit slightly loose if the grommets are used, otherwise they would serve no purpose. Tighten the screws down just enough to hold the eyelets, but not crush them.

You may find that mounting the servo securely without grommets gives better control, and choose to omit them even in IC-powered models, despite the negative effect on servo life.

Use grommets on throttle servos. They will last a lot longer.