Rotor Clip KG-118SJ Internal Spiral Retaining Ring

Product Description

The ROTOR CLIP KG-118SJ is an internal spiral retaining ring designed for a 1-3/16 inch bore diameter. Made from AISI 302 stainless steel, this ring seats into a machined internal groove to retain components on a shaft or inside a housing without requiring a separate fastener. The ring measures 1.271 inches free outer diameter with a thickness of 0.05 inches. Groove width is 0.056 inches and groove depth is 0.037 inches. Thrust load capacity reaches 3,110 pounds at the groove safety factor and 7,840 pounds at the ring safety factor. Machinists, maintenance technicians, and assembly professionals install this type of ring in mechanical assemblies where a low-profile, lightweight retention solution is required.

This retaining ring is suited for use in mechanical subassemblies across industrial, HVAC, and rotating equipment applications. It is appropriate for installations where stainless steel corrosion resistance is required, such as in wet environments, food-adjacent equipment, or chemically exposed assemblies. The spiral design allows tool-free installation in some configurations and eliminates the ear protrusions found on standard stamped rings, making it useful in space-constrained bores.

Key Features

• Internal spiral design seats into a machined groove for secure component retention
• AISI 302 stainless steel construction per AMS-5866 for corrosion resistance
• Groove safety factor thrust load capacity of 3,110 pounds; ring safety factor of 7,840 pounds
• Groove width of 0.056 inches with a tolerance of 0.000 to 0.004 inches
• Ring thickness of 0.05 inches with a tolerance of -0.002 to 0.002 inches
• Meets ISO 13485:2016 and AISI 302 material standards

Compatibility

Designed as an OEM-style internal spiral retaining ring for mechanical assemblies requiring a 1-3/16 inch bore diameter groove per AISI 302 and AMS-5866 specifications.

Installation Notes

Installation and removal should be performed by a qualified machinist or maintenance technician using appropriate spiral ring installation tools. Ensure the internal groove dimensions match the ring specifications before installation, as groove diameter tolerance is -0.004 to 0.004 inches. Remove all rotational load and de-energize the assembly before servicing components retained by this ring. Do not reuse a ring that has been removed, as re-installation may compromise retention integrity.