These ProTek R/C Aluminum Servo Grommets are a stronger alternative to traditional rubber grommets, a smart idea over using no grommets, and do an excellent job at completely locking the servo in place.
Traditional rubber grommets do a great job at absorbing slight vibrations and prolonging the life of older, previous generation servos. With current generation of servos being stronger and more powerful, the role of the rubber grommet isn't needed, as evident with the servo saver going extinct in 1/10 scale.
Many people choose to use no grommets on the servo but this comes at the risk of the servo moving around. Without any grommets filling up the dead space in the servo ears, sometimes under certain conditions or impacts, the servo can slightly shift. For a steering servo this can mean losing your center trim and with a throttle servo this can cause frustrating issues with your idle and brakes.
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