Rotor Clip KG-325ST Oil Internal Spiral Retaining Ring

Product Description

The ROTOR CLIP KG-325ST OIL is a steel internal spiral retaining ring engineered for use in bored housings and assemblies requiring reliable axial retention. With a 3.25-inch bore diameter and a free outside diameter of 3.47 inches, this ring seats into a machined groove to hold components firmly against thrust loads. Ring thickness is 0.111 inches, and the groove width is 0.12 inches with a groove depth of 0.098 inches. The oil finish provides baseline corrosion resistance for general industrial and mechanical applications. Machinists, maintenance technicians, and assembly professionals install this type of ring in production and field service environments.

This internal spiral retaining ring is suited for use in rotating assemblies, gearboxes, pumps, motors, and similar mechanical housings where a standard snap ring or stamped retaining ring is not appropriate. The spiral design allows installation without special snap ring pliers in some configurations, though proper retaining ring tools are recommended for clean seating. Applications span light industrial machinery, fluid handling equipment, and mechanical drivetrain components where a 3.25-inch bore is present.

Key Features

• 3.25-inch bore diameter with a free outside diameter of 3.47 inches
• Ring thickness of 0.111 inches with a tight tolerance of plus or minus 0.003 inches
• Groove width of 0.12 inches, groove depth of 0.098 inches
• Thrust load capacity of 22,510 pounds at groove safety factor and 45,330 pounds at ring safety factor
• Material grade SAE 1060 to 1090 steel with oil finish
• Meets ISO 13485:2016 standard; UNSPSC Code 31163202

Compatibility

Designed as an OEM-style internal spiral retaining ring for mechanical assemblies with a 3.25-inch bore diameter and a matching machined groove accepting a 0.12-inch groove width.

Installation Notes

Installation should be performed by a qualified machinist or mechanical technician familiar with retaining ring procedures. Verify groove dimensions match the specified groove width and depth before installation to ensure proper seating and load transfer. Power down and de-energize any associated equipment before servicing the assembly. Use appropriate retaining ring installation tools to avoid deforming the ring or damaging the groove surface.