Rotor Clip KG-275SJ Internal Spiral Retaining Ring 2.75 in

Product Description

The ROTOR CLIP KG-275SJ is a stainless steel internal spiral retaining ring designed for a 2.75-inch bore diameter application. Manufactured from AISI 302 stainless steel, this ring seats into a machined internal groove to retain components axially within a bore. The ring measures 0.093 inches in thickness and seats in a groove 0.103 inches wide and 0.082 inches deep. With a free outside diameter of 2.934 inches and an inside diameter of 2.484 inches, it delivers substantial thrust load capacity. It is installed by maintenance technicians, mechanical assemblers, and industrial service professionals working on rotating equipment, housings, and precision assemblies.

This internal spiral retaining ring is suited for use in applications where a conventional stamped retaining ring is not appropriate due to clearance constraints or load distribution requirements. The spiral design allows insertion without specialized snap-ring pliers in some configurations, making it a practical choice for bore retention in motors, gearboxes, pumps, cylinders, and similar housings. It is appropriate for both light industrial and heavy mechanical assembly environments where corrosion resistance is a factor.

Key Features

• AISI 302 stainless steel construction for corrosion resistance in demanding environments
• 2.75-inch bore diameter fit with a free outside diameter of 2.934 inches
• Ring thickness of 0.093 inches with a tight tolerance of plus or minus 0.003 inches
• Groove width of 0.103 inches with a tolerance of 0.000 to 0.005 inches
• Thrust load capacity of 15,940 pounds at groove safety factor and 32,140 pounds at ring safety factor
• Compliant with AISI 302, AMS-5866, and ISO 13485:2016 material and quality standards

Compatibility

Designed as an OEM-style internal spiral retaining ring for any bore measuring 2.75 inches in diameter with a groove width of 0.103 inches and a groove depth of 0.082 inches machined to accept this ring profile.

Installation Notes

Installation is performed by qualified mechanical technicians. De-energize and lock out all equipment before disassembling any housing or rotating assembly. Verify groove dimensions match the specified groove width, groove depth, and groove diameter tolerances before installation. Do not force the ring beyond its elastic limit during insertion, as deformation will compromise load capacity and retention.