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Split aluminium shaft grounding ring for 1.625 in shaft, bolt-through mount with conductive epoxy

Aegis

Aegis Shaft Grounding Ring Kit SGR-1.625-1A4-UK 1.625 in

SKU CH-3EFQ-1SZ42

Shaft grounding ring kit for 1.625 in motor shafts, compatible with NEMA frames 254T, 256T, 284TS, 286TS, diverts harmful VFD currents to extend motor life

  • Extends motor life by safely diverting harmful VFD currents
  • Fits NEMA frames 254T, 256T, 284TS and 286TS
  • Bolt-through mount with conductive epoxy for secure installation
  • Split ring design fits 1.625 in shaft without disassembly
  • Aluminium construction provides durable grounding performance

Aegis Shaft Grounding Ring Kit for 1.625 in Shafts

This Aegis shaft grounding ring kit fits a nominal shaft diameter of 1.625 inches. It is designed for NEMA motor frames 254T, 256T, 284TS and 286TS. The split ring construction uses aluminum and mounts with bolt-through conductive epoxy. It helps extend motor life by diverting harmful VFD currents away from bearings.

Thermals Noise and Power Draw

This passive grounding component generates no heat, noise or power draw during operation. It functions as a conductive path to earth for shaft voltages produced by variable frequency drives. No external power supply or cooling is required for the ring itself. Installation does not alter the motor's thermal or acoustic profile.

Split Ring Construction and Conductive Epoxy Mount

The split ring design allows installation without removing the motor shaft or coupling. Bolt-through conductive epoxy mounting provides a secure, low-impedance electrical connection to the frame. These features reduce downtime during retrofits and maintain consistent contact over the motor's service life. No additional software or accessories are included.

Highlights

  • Extends motor life by safely diverting harmful VFD currents
  • Fits NEMA frames 254T, 256T, 284TS and 286TS
  • Bolt-through mount with conductive epoxy for secure installation
  • Split ring design fits 1.625 in shaft without disassembly
  • Aluminium construction provides durable grounding performance

Specifications

No published specifications for this item yet.

Questions about this item

How do I install the split ring on a 1.625 in shaft using the bolt-through method and conductive epoxy?

Clean the shaft surface, apply the supplied conductive epoxy evenly, position the split aluminium ring around the 1.625 in shaft, align the bolt-through holes with the motor frame, torque the fasteners to the motor manufacturer's specification, and allow the epoxy to cure fully before energising the VFD.

What maintenance or replacement will the ring need during its service life?

Inspect the ring fibres for contamination or wear during scheduled motor downtime; if the conductive path degrades, replace the entire split ring assembly — no separate consumable parts are used.

What is the first limit that appears when the motor runs continuously on a VFD?

The ring diverts shaft voltage continuously; the practical limit is the fibre-to-shaft contact integrity, which can degrade if epoxy bond fails or debris bridges the split, causing voltage to reappear on the bearings.

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