Electro Static's Split-Ring kit offers long-term protection of AC motor bearings from electrical damage
Engineered to simplify the protection of bearings in VFD-driven motors, Electro Static Technology has introduced the Split-Ring AEGIS Bearing Protection Ring with Conductive Epoxy Mounting. Developed for field installation without detaching coupled equipment, the Split-Ring kit is designed to protect AC motor bearings from electrical damage, providing a path of least resistance and channeling VFD-induced bearing currents to ground. The unit has a 360° circumferential inner ring of conductive microfibers permanently secured in place by the AEGIS FiberLock channel. The FiberLock channel design not only prevents the microfiber brushes from loosening or falling out, but also protects them from breakage.
In addition to the ring, the kit contains engineered silver-filled conductive epoxy. After removing the paint from the installation area of the motor end bell, the installer mixes the epoxy resin and activator, applies the adhesive to the back side of the ring, centers the ring halves around the motor shaft and holds them in place to allow the adhesive to set. Unlike conventional shaft grounding brushes, the ring is designed to be maintenance-free and lasts for the life of the motor. It works with virtually no friction or wear, regardless of motor RPM, and is unaffected by dirt, grease or other contaminants.