EST Aegis SGR-1.625-UKIT-1A4 Shaft Grounding Ring Universal Mounting Kit 1.625" Split Ring

The EST Aegis SGR-1.625-UKIT-1A4 is a universal mounting kit with split ring shaft grounding system designed to protect electric motor bearings from damaging shaft voltages caused by variable frequency drives (VFDs). This complete kit is engineered for motors with 1.625" diameter shafts and fits NEMA frame sizes 254T, 256T, 284TS, and 286TS.

Key Features:

• Split ring design allows installation without motor disassembly
• Aluminum construction with conductive microfiber technology
• Provides 360-degree shaft grounding protection against electrical discharge machining (EDM)
• Universal mounting brackets accommodate various motor configurations
• Multiple installation options: bolt-on mounting or conductive epoxy
• Prevents bearing fluting, pitting, and premature failure

Complete Kit Includes:

• (1) AEGIS SGR split ring shaft grounding ring
• (16) Universal mounting brackets in 4 different styles (4 of each)
• (4) 5-40 x 3/8" flat head cap screws
• (4) 6-32 x 3/8" socket head cap screws
• (4) #6 flat washers
• (4) #6 split lock washers
• 5/64" Allen wrench
• 7/64" Allen wrench

The AEGIS shaft grounding ring diverts harmful VFD-induced bearing currents safely to ground by providing a highly reliable, low-impedance path from the motor shaft. This prevents electrical discharge damage that causes costly downtime and extends motor bearing life. The universal bracket design allows installation with 3 or 4 brackets depending on motor end bell configuration, avoiding interference with shaft shoulders or slingers. For enhanced mounting security, the ring can also be installed using AEGIS EP2400 Conductive Epoxy (sold separately).