Rotor Clip KG-375ST Oil Internal Spiral Retaining Ring

Product Description

The ROTOR CLIP KG-375ST OIL is a steel internal spiral retaining ring designed for securing components within a bore. It seats in a machined groove to hold shafts, bearings, or assemblies in place without requiring threaded fasteners or welding. The ring has a 3.75-inch bore diameter, a free outer diameter of 4.002 inches, and a ring thickness of 0.111 inches. Manufactured from 1060/1090 grade steel with an oil finish for corrosion resistance, this ring is installed by machinists, maintenance technicians, and mechanical assemblers working with precision-fitted bore applications.

This internal spiral retaining ring is suited for industrial and mechanical assembly applications where a reliable axial retention method is required within a housing or bore. It fits into a groove with a width of 0.12 inches and a depth of 0.112 inches. The oil finish makes it appropriate for environments with light lubrication or moderate moisture exposure. It is typically used in gearboxes, pumps, motors, and similar rotating or reciprocating machinery where bore retention is necessary.

Key Features

• Internal spiral design seats directly into a machined bore groove for tool-free retention of shafts and assemblies
• 3.75-inch bore diameter with a 4.002-inch free outer diameter for precise fitment
• Ring thickness of 0.111 inches with a tight tolerance of plus or minus 0.003 inches
• Groove width of 0.12 inches and groove depth of 0.112 inches for defined seating geometry
• Thrust load capacity of 29,690 pounds at groove safety factor and 52,310 pounds at ring safety factor
• Oil finish on 1060/1090 steel provides light corrosion resistance suitable for lubricated assemblies

Compatibility

Designed for use in bores requiring an internal spiral retaining ring with a 3.75-inch bore diameter, a 0.12-inch groove width, and a 0.112-inch groove depth machined to standard tolerances.

Installation Notes

Installation requires a properly machined groove meeting the specified width and depth tolerances before the ring is seated. Use the appropriate spiral ring installation tool to avoid deforming the ring during assembly. Ensure all rotating machinery is fully de-energized and locked out before servicing components that use this retaining ring. Inspect the groove for burrs or surface damage prior to installation to prevent improper seating or premature failure.