Rotor Clip SH-28ST Pa Snap Retaining Ring 9/32 in

Product Description

The ROTOR CLIP SH-28ST PA is an external snap retaining ring designed to seat in a machined groove on a shaft to axially retain components without threads, pins, or additional fasteners. Built from SAE 1060-1090 spring steel and finished with a phosphate coating, this ring is engineered for consistent snap engagement and corrosion resistance in demanding mechanical assemblies. It fits a 9/32 inch (0.2813 inch) shaft diameter and seats in a groove measuring 0.261 inches in diameter. Hardness runs 69.5 to 73 HRC, giving the ring the spring-back and retention force required in rotating or static shaft applications. Machinists, maintenance technicians, and assembly professionals install this ring using standard snap ring pliers.

This retaining ring is suited for use in light-duty mechanical assemblies across HVAC equipment, pumps, motors, and general industrial components wherever a 9/32 inch shaft external groove is present. Its compact free outside diameter of 0.49 inches makes it appropriate for assemblies with limited radial clearance. It is commonly found in blower motor shaft assemblies, pump impeller retention, and small gearbox applications. The phosphate finish provides a base layer of corrosion resistance and aids in lubrication retention during service.

Key Features

• External snap ring design seats in a shaft groove for reliable axial retention without additional hardware
• SAE 1060-1090 spring steel construction with hardness of 69.5 to 73 HRC for consistent snap engagement
• Phosphate finish provides corrosion resistance and lubrication retention
• Groove diameter of 0.261 inches with tight tolerance of plus or minus 0.002 inches
• Ring thickness of 0.025 inches with tolerance of plus or minus 0.002 inches for precise groove fit
• Meets SAE 1060-1090, UNS G10600-G10900, and ISO 13485:2015 standards

Compatibility

Designed for use on 9/32 inch (0.2813 inch) diameter shafts with an external groove diameter of 0.261 inches and groove width of 0.029 inches. Suitable as an OEM-style replacement or service part in any mechanical assembly matching these groove and shaft specifications.

Installation Notes

Installation and removal require snap ring pliers sized for external rings of this diameter. Ensure the shaft groove is clean and free of burrs before seating the ring to avoid deforming the ring or reducing retention force. Always power down and de-energize any equipment before servicing internal assemblies. Do not reuse a ring that has been over-expanded or shows signs of deformation.