Rotor Clip HO-31ST Zd Internal Snap Retaining Ring

Product Description

The ROTOR CLIP HO-31ST ZD is a heavy-duty internal snap retaining ring designed to secure components within bored housings and assemblies. Manufactured from 1060/1090 spring steel with a zinc finish, this ring delivers reliable axial retention in demanding mechanical applications. The ring measures 0.346 inches free outer diameter with a thickness of 0.015 inches. It installs into a precision groove with a width of 0.02 inches and a depth of 0.009 inches. This type of retaining ring is commonly installed by machinists, maintenance technicians, and assembly professionals working on shafts, housings, pumps, motors, and gearboxes where secure component retention is required.

The HO-31ST ZD is suited for use in bores with a 5/16-inch diameter in both light industrial and commercial mechanical assemblies. It provides a thrust load capacity of 240 pounds at the groove safety factor and 538 pounds at the ring safety factor, making it appropriate for moderate-load retention applications. Its zinc finish offers basic corrosion protection for use in standard indoor mechanical environments. This ring is sold individually with a minimum order quantity of 100 units, making it appropriate for production and maintenance supply purchasing.

Key Features

• Internal snap ring design for 5/16-inch bore diameter applications
• Spring steel construction, material grade 1060/1090 for consistent elasticity and strength
• Zinc finish for corrosion resistance in standard mechanical environments
• Groove thrust load capacity: 240 pounds (groove safety factor), 538 pounds (ring safety factor)
• Rockwell 15N hardness of 86-88 for reliable performance under load
• Meets ISO 13485:2016 and SAE 1060-1090 standards

Compatibility

Designed for installation in bored housings and assemblies requiring a 5/16-inch bore diameter internal snap retaining ring with a groove width of 0.02 inches and groove depth of 0.009 inches.

Installation Notes

Internal snap retaining rings of this type are installed using internal snap ring pliers; use of incorrect tooling can damage the ring or groove. Power down and de-energize any associated equipment before disassembly or ring installation. Verify bore groove dimensions against ring specifications before installation to ensure proper seating and load rating. Dispose of any ring that has been over-expanded or shows signs of deformation, as re-use may compromise retention integrity.