Rotor Clip KG-300SJ Internal Spiral Retaining Ring 3 in

Product Description

The ROTOR CLIP KG-300SJ is an internal spiral retaining ring engineered for use in bores with a 3-inch nominal diameter. Machined from AISI 302 stainless steel, this ring seats into a machined groove to retain components axially within a housing or bore. The spiral design allows the ring to be installed and removed without specialized snap-ring pliers, making it practical for maintenance-intensive applications. With a ring thickness of 0.093 inches and a groove width of 0.103 inches, this ring is precision-dimensioned for reliable retention. Mechanical assemblers, maintenance technicians, and OEM production lines are the typical installers.

This retaining ring is suited for industrial and mechanical assemblies where a bore-installed, axial retention solution is required. Applications include pump housings, gearboxes, motor end bells, hydraulic cylinders, and similar rotating or reciprocating equipment where a reliable internal retaining feature is needed. The stainless steel construction makes it appropriate for environments with moisture exposure, mild chemical contact, or elevated hygiene requirements such as food processing or medical equipment. It is sold individually.

Key Features

• Internal spiral ring design seats in a machined bore groove for axial component retention
• AISI 302 stainless steel construction per AMS-5866 for corrosion resistance
• 3-inch nominal bore diameter with a free outside diameter of 3.204 inches
• Ring thickness of 0.093 inches; groove width of 0.103 inches and groove depth of 0.091 inches
• Thrust load capacity of 18,300 lb (groove safety factor) and 35,060 lb (ring safety factor)
• Spiral profile allows tool-free or low-tool installation without distorting the ring

Compatibility

Designed for installation in bores with a 3-inch nominal diameter machined to the groove width and depth tolerances specified for this ring series. Verify bore groove dimensions before installation.

Installation Notes

Installation should be performed by a qualified mechanical technician. De-energize and lock out all equipment before servicing any assembly containing retaining rings. Confirm the bore groove dimensions match the specified groove width tolerance of 0.000 to 0.005 inches over nominal and groove diameter tolerance of -0.006 to 0.006 inches before installing. Do not reuse a ring that has been removed, as the spiral profile may be deformed during extraction.