Rotor Clip HO-87ST Zd Internal Snap Retaining Ring

Product Description

The ROTOR CLIP HO-87ST ZD is an internal snap retaining ring designed for bore diameters of 7/8 inches. Made from spring steel with a zinc finish, it seats in a machined groove to axially retain shafts, bearings, or other components inside a housing bore. Ring thickness is 0.042 inches, groove width is 0.046 inches, and free outside diameter is 0.971 inches. The zinc finish provides basic corrosion resistance in typical indoor mechanical environments. This ring is installed by machinists, maintenance technicians, and assembly professionals working on rotating or linear motion assemblies where a secure internal retainer is required.

This ring fits applications where an internal groove is cut into a bore to retain a component without the use of threaded fasteners or adhesives. Common use cases include gearboxes, pump housings, electric motor end bells, hydraulic cylinders, and general industrial assemblies. The groove depth of 0.028 inches and groove width of 0.046 inches must be machined to specification for proper seating and rated load capacity. Suitable for both OEM production assembly and MRO replacement service.

Key Features

• Internal snap ring design seats in bore groove to retain components axially
• Spring steel construction with material grade 1060/1090 for consistent snap force and durability
• Zinc finish for basic corrosion protection in standard indoor mechanical environments
• Thrust load capacity rated at 2080 pounds at groove safety factor and 5227 pounds at ring safety factor
• Hardness rated Rockwell 30N 66-71 for reliable spring-back performance
• Conforms to SAE 1060-1090 and ISO 13485:2016 standards

Compatibility

Designed as an OEM-style internal snap retaining ring for 7/8-inch bore applications where groove dimensions of 0.046-inch width and 0.028-inch depth are machined to specification.

Installation Notes

Installation requires snap ring pliers sized for internal rings. The bore groove must be machined to the specified width and depth tolerances before installation. Always relieve all load, pressure, and stored energy from the assembly before removing or installing snap rings. Inspect the ring seating fully in the groove before returning the assembly to service.