Rotor Clip SE-118ST Pa External E Style Retaining Ring

Product Description

The ROTOR CLIP SE-118ST PA is an external E style retaining ring designed for 1-3/16 inch shaft diameters with a groove diameter of 1.079 inches. Made from SAE 1060-1090 spring steel, this three-prong ring delivers consistent radial retention on shafts where a full-diameter snap ring is not practical. The phosphate finish provides baseline corrosion resistance and lubricant retention. With a hardness rating of 47-52 HRC and a ring thickness of 0.062 inches, this part is suited for moderate-load applications across mechanical assemblies. Licensed tradespeople and MRO maintenance technicians install this type of hardware in pump shafts, motor assemblies, and related rotating equipment.

E style retaining rings are used where axial access is limited and radial installation from the side of the shaft is required. This ring fits shafts measuring 1-3/16 inches in diameter and seats into a groove that is 0.068 inches wide and 0.054 inches deep. Typical applications include HVAC blower motor shafts, pump impeller shafts, and industrial drive assemblies where a compact external ring is specified. The minimum order quantity for this part is 100 units, making it appropriate for stocking in service shops, mechanical contractors, and OEM production environments.

Key Features

• E style external ring with three prongs for secure radial snap-on installation
• 1060-1090 spring steel construction rated to 47-52 HRC hardness
• Phosphate finish for corrosion resistance and improved lubricant adhesion
• Groove diameter of 1.079 inches with a tolerance of 0.000 to 0.005 inches
• Ring thickness of 0.062 inches with a tolerance of -0.003 to 0.003 inches
• Meets SAE 1060-1090, UNS G10600-G10900, and ISO 13485:2015 standards

Compatibility

Designed as an OEM-style replacement or maintenance stock E style retaining ring for shafts with a 1-3/16 inch diameter and a groove width of 0.068 inches conforming to SAE 1060-1090 and UNS G10600-G10900 specifications.

Installation Notes

E style retaining rings require external snap ring pliers or a dedicated E ring seating tool for proper installation and removal. Always de-energize and lock out any rotating equipment before servicing shaft components. Inspect the shaft groove for burrs or wear that could affect ring seating before installing a new ring. Do not reuse a ring that has been removed, as the prongs may be fatigued.