Rotor Clip SH-87ST Pa B100 External Snap Ring 7/8 in

Product Description

The ROTOR CLIP SH-87ST PA B100 is an external snap retaining ring designed to secure components on shafts in mechanical assemblies. Manufactured from SAE 1060-1090 spring steel with a phosphate finish, this ring fits a 7/8 inch (0.875 inch) shaft diameter and seats in a groove with a 0.821 inch groove diameter. Ring thickness is 0.042 inches and hardness runs 47-53 HRC, providing reliable retention under load. Licensed machinists, millwrights, and maintenance technicians install these rings using standard snap ring pliers in industrial, HVAC, pump, and power transmission applications.

This external snap ring is suited for shaft-mounted retention in residential and commercial mechanical systems. Typical applications include electric motor shafts, pump assemblies, fan shaft assemblies, and general power transmission equipment where a low-profile, external groove retaining solution is required. The phosphate coating provides a base level of corrosion resistance and improves lubricant adhesion in service. The minimum order quantity is 100 pieces, sold as a package quantity of 1.

Key Features

• Fits 7/8 inch (0.875 inch) shaft diameter with 0.821 inch groove diameter
• SAE 1060-1090 spring steel construction rated to 47-53 HRC hardness
• Phosphate finish for corrosion resistance and lubricant retention
• Ring thickness of 0.042 inches with tight tolerance of plus or minus 0.002 inches
• Groove width of 0.046 inches with tolerance of 0.000 to 0.003 inches
• Meets SAE 1060-1090, UNS G10600-G10900, and ISO 13485:2015 standards

Compatibility

Designed as an OEM-style external snap retaining ring for 7/8 inch shafts with a standard external groove profile. Consult shaft and housing drawings to confirm groove diameter, groove width, and groove depth before installation.

Installation Notes

Installation requires external snap ring pliers sized for the ring free outside diameter of 1.21 inches. Ensure the shaft groove dimensions match the specified groove diameter, width, and depth tolerances before fitting. De-energize and lock out any equipment before servicing shaft assemblies. Do not reuse a snap ring that has been removed, as re-installation can compromise retention force.