Description
The Aegis SGR-1.375-UKIT is a shaft grounding ring designed to protect motor bearings from the damaging electrical currents induced by variable frequency drives (VFDs). Engineered for motors with a 1.375″ shaft diameter and compatible with NEMA 213 and 215T frame motors, this unit kit provides everything needed for a complete and reliable installation.
How It Works
VFD-driven motors generate high-frequency shaft voltages that, without proper mitigation, discharge through the motor’s bearings. Over time, these electrical discharges cause pitting, fluting, and premature bearing failure. The Aegis SGR shaft grounding ring provides a low-impedance path to ground, safely diverting harmful shaft currents away from the bearings and dramatically extending motor service life.
Key Features
- Designed for 1.375″ motor shaft diameter
- Compatible with NEMA 213 and 215T frame motors
- UKIT includes all hardware and components needed for installation
- Protects bearings from VFD-induced electrical discharge machining (EDM)
- Conductive microfiber technology ensures continuous 360° shaft contact
- Helps prevent premature bearing failure and unplanned motor downtime
- Suitable for new motor installations and retrofits
Applications
- HVAC fan and blower motors driven by variable frequency drives
- Pump motors on VFD-controlled systems
- Industrial and commercial motor applications requiring bearing protection
- Retrofit installations on existing NEMA 213/215T frame motors
Why Choose Aegis SGR
Aegis shaft grounding rings are the industry-recognized standard for motor bearing protection in VFD applications. By installing the SGR-1.375-UKIT, HVAC technicians and facility managers can significantly reduce motor maintenance costs, eliminate nuisance bearing replacements, and extend the operational lifespan of critical motor assets.
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