Rotor Clip HO-31SS B100 Internal Snap Retaining Ring

Product Description

The ROTOR CLIP HO-31SS B100 is a stainless steel internal snap retaining ring designed to secure components within a bored housing by seating into a machined groove. With a 5/16-inch bore diameter and a free outer diameter of 0.346 inches, this ring holds axial position without fasteners or adhesives. Ring thickness is 0.015 inches and groove width is 0.02 inches with a groove depth of 0.009 inches. Machined from 15-7 stainless steel (Grade 632) to AMS-5529 and UNS S15700 standards, it delivers corrosion resistance suitable for demanding environments. Machinists, maintenance technicians, and assembly professionals install this type of ring in precision mechanical assemblies.

The HO-31SS B100 is suited for light-duty to moderate-duty internal retaining applications where a compact ring profile is required in a small-bore housing. Its stainless steel construction makes it appropriate for applications exposed to moisture, mild chemicals, or elevated temperatures where carbon steel rings would corrode. Typical use cases include small shaft assemblies, pneumatic components, hydraulic fittings, and precision instruments requiring reliable axial retention in a 5/16-inch bore.

Key Features

• Internal snap ring design seats into a machined groove inside a bored housing for axial retention
• 15-7 stainless steel (Grade 632) construction meets AMS-5529 and UNS S15700 standards
• Rockwell 15N hardness of 82.5 to 86 for wear resistance under load
• Thrust load capacity of 240 pounds (groove safety factor) and 538 pounds (ring safety factor)
• Tight groove width tolerance of 0.000 to 0.002 inches and groove diameter tolerance of -0.001 to 0.001 inches for precise fitment
• Corrosion-resistant material suitable for wet or chemically exposed environments

Compatibility

Designed as an OEM-style replacement or new-installation internal snap retaining ring for mechanical assemblies with a 5/16-inch bore diameter and a matching groove profile per the specified dimensions.

Installation Notes

Internal snap rings of this type are installed and removed using internal snap ring pliers; do not attempt installation with improvised tools, as the ring can deform or launch unexpectedly. Ensure the bore groove is clean and dimensionally within tolerance before installation. De-energize, depressurize, or disassemble the host assembly fully before servicing retaining rings. Wear eye protection during installation and removal.