The AEGIS SGR Bearing Protection Ring protects the bearings of VFD-driven motors from electrical damage, and the new AEGIS Universal Mounting Kit (U-Kit) simplifies its mounting on most ac motor shafts. Electro Static Technology's kit includes the AEGIS grounding ring and mounting hardware for most motor designs. Ordered based on the NEMA "u" shaft diameter, the kit contains the correct size ring for the motor and four styles of brackets with bolts and lock washers that can be used in various configurations, depending on the contours of the motor's end bracket.
Useful for HVAC service contractors, motor repair shops, plant maintenance departments and original equipment manufacturers, the ring prevents electrical "fluting" damage in the bearing, bearing noise, costly motor repairs/replacements and downtime by safely channeling VFD-induced bearing currents to ground. To simplify the installation of the ring on NEMA frame motors, the brackets in the U-Kit may be mounted on the motor either by drilling and tapping small holes or using AEGIS Conductive Epoxy.
The ring's conductive microfibers are embedded securely in the AEGIS FiberLock channel and completely surround the motor shaft, providing millions of discharge points for harmful shaft currents. This design creates the path of least resistance that effectively diverts these currents away from bearings to ground. The microfibers themselves are engineered for flexibility to prevent breakage. The AEGIS ring is maintenance-free and lasts for the life of the motor.
Producing high-quality end-production metal parts with additive manufacturing for applications like aerospace and medical requires very tightly controlled processes and materials. New standards and guidelines for machines and processes, materials, and printed parts are underway from bodies such as ASTM International.
Engineers at the University of San Diego’s Jacobs School of Engineering have designed biobatteries on commercial tattoo paper, with an anode and cathode screen-printed on and modified to harvest energy from lactate in a person’s sweat.
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