Rotor Clip SH-81ST Zd External Retaining Ring 13/16 in

Product Description

The ROTOR CLIP SH-81ST ZD is an external retaining ring designed to secure components on a shaft by seating into a machined groove. It fits a 13/16-inch (0.8125-inch) shaft diameter with a groove diameter of 0.762 inches and a ring thickness of 0.042 inches. Manufactured from SAE 1060-1090 carbon steel with a yellow zinc dichromate finish, this ring delivers solid corrosion resistance and a hardness of 66-71 HRC. Mechanical assemblers, maintenance technicians, and industrial tradespeople install these rings in a wide range of rotating and static shaft assemblies across commercial and industrial equipment.

This external retaining ring is suited for use in shaft assemblies where a reliable, low-profile axial fastener is required. It applies in manufacturing, HVAC mechanical assemblies, pump and motor shafts, and general industrial maintenance applications. The ring seats in a groove that is 0.046 inches wide and 0.025 inches deep, providing a stable retention profile. Its free outside diameter of 1.15 inches and free diameter of 0.751 inches allow for controlled installation using standard retaining ring pliers.

Key Features

• Fits 13/16-inch (0.8125-inch) shaft diameter with 0.762-inch groove diameter
• SAE 1060-1090 carbon steel construction with yellow zinc dichromate finish for corrosion resistance
• Hardness rating of 66-71 HRC for durable axial load retention
• Ring thickness of 0.042 inches with groove width of 0.046 inches for precise seating
• Meets SAE 1060-1090 and UNS G10600-G10900 fastener standards
• Minimum order quantity of 100 units — suitable for maintenance stock and production use

Compatibility

Designed as an OEM-style external retaining ring for 13/16-inch shaft diameters with a standard groove profile; verify groove diameter, width, and depth against shaft specifications before installation.

Installation Notes

Installation is performed by qualified mechanical technicians using external retaining ring pliers sized for the ring's lug holes. De-energize and lock out all equipment before servicing any shaft assembly. Ensure the shaft groove dimensions match the ring specifications — groove diameter, width, and depth — before seating the ring. Do not reuse a retaining ring that has been removed, as the material may have been stressed beyond its design limits.