Aegis SGR-0.625-UKIT-1A4

Aegis uKIT Split Shaft Grounding Ring - 0.625"
Catalog Number: SGR-0.625-UKIT-1A4
  • uKIT Split
  • Shaft Diameter: 0.625"


AEGIS uKIT shaft grounding rings come in solid and split ring configurations with universal mounting brackets. Available for both NEMA and IEC electric motors. Choose your kit based on your motor’s frame size and install easily with screws or conductive epoxy. Protect your bearings with AEGIS.

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Edmonton [eMotors #1], AB: In Stock (2)
Edmonton [eMotors #2], AB: Out of Stock

Technical Support Available 8:30am-6:00pm EST

Call 1-800-890-7593

Product Highlights


Using proprietary Electron Transport Technology, the conductive microfibers inside an AEGIS shaft grounding ring provide the path of least resistance for damaging bearing currents, preventing electrical damage to motor bearings and dramatically extending motor life

The universal mounting brackets allow the Ukit mounting options to fit almost any motor design in NEMA frames from 56 to 449T or IEC frames from 132M to 355M.


  • Solid Ring and Split Ring
  • Select Ring based on NEMA or IEC Frame size
  • Fits over slingers, seals and shaft shoulders
  • Circumferential Conductive Microfiber rows in Fiberlock Channel
  • Fiber overlaps shaft
  • Two Rows of Fiber
  • External mounting


  • AC Motors Low Voltage up to 500HP (375kW)
  • DC Motors up to 300HP (225kW)
Shaft Diameter

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AEGIS Shaft Grounding Rings are manufactured in Maine, USA by Electro Static Technology (EST), an ITW Company. EST has been around since the early 80s, initially working in the printer industry with a focus on antistatic technologies. After being acquired by Illinois Tool Works (ITW) in 1999, EST continued to work in electrostatics and eventually introduced the AEGIS Shaft Grounding Rings in 2005.

Stray electric charges on rotating components have been causing bearing damage in electric motors for too long, particularly since the introduction of Variable Frequency Drives (VFDs). EST has been a leader in technological advances to mitigate this damage (pitting, frosting, and fluting). Proprietary technology from ITW uses conductive microfibers inside the AEGIS Grounding Rings to divert the motor’s shaft current to ground, decreasing damage caused by harmful voltages and increasing motor life.