Rotor Clip KG-87SJ Internal Spiral Retaining Ring

Product Description

The ROTOR CLIP KG-87SJ is a stainless steel internal spiral retaining ring designed to secure components within a bored housing or assembly. It seats into a machined internal groove and provides axial retention without requiring a shoulder or snap groove on a shaft. Manufactured from AISI 302 stainless steel to AMS-5866 standards, this ring offers corrosion resistance suitable for demanding industrial and mechanical applications. The ring measures 0.042 inches thick with a free outside diameter of 0.943 inches and fits a 7/8-inch bore diameter. It is installed by machine shops, maintenance mechanics, and assembly technicians working on precision-fitted components.

This internal spiral retaining ring is used in housings, gearboxes, pumps, and similar assemblies where a reliable internal groove retention method is required. The spiral design eliminates the need for installation tooling ears, allowing full 360-degree contact around the groove. It is suited to both light-duty and moderate-load applications in industrial, commercial, and trade service environments where corrosion resistance is a priority.

Key Features

• AISI 302 stainless steel construction per AMS-5866 for corrosion resistance
• 7/8-inch bore diameter with 0.943-inch free outside diameter
• Groove width of 0.046 inches with a groove depth of 0.028 inches
• Ring thickness of 0.042 inches with tight tolerance of plus or minus 0.002 inches
• Thrust load capacity of 1,730 lb at groove safety factor and 5,310 lb at ring safety factor
• Compliant with ISO 13485:2016 and AISI 302 / AMS-5866 standards

Compatibility

Designed as an OEM-style internal spiral retaining ring for assemblies requiring a 7/8-inch bore diameter internal groove retention solution.

Installation Notes

Installation is typically performed by qualified mechanics or assembly technicians. Before servicing any assembly, ensure all power sources are de-energized and rotating equipment is fully stopped. Spiral retaining rings are installed by winding into the internal groove rather than snapping into place, so confirm the groove diameter tolerance and groove width match the specifications of this ring before installation. Inspect the groove for burrs or contamination prior to seating the ring.