Rotor Clip SH-25ST Mcd External Retaining Ring 1/4 in

Product Description

The ROTOR CLIP SH-25ST MCD is an external retaining ring designed to secure components on shafts in mechanical assemblies. Manufactured from SAE 1060-1090 spring steel with a cadmium plating finish, this ring fits a 1/4 inch (0.25 inch) shaft diameter and seats in a groove measuring 0.23 inches in diameter and 0.029 inches wide. The ring is 0.025 inches thick and carries a hardness rating of 69.5 to 73 HRC, providing reliable retention under dynamic and static load conditions. It meets Military Specification MS 16624-1025 and conforms to SAE 1060-1090 and UNS G10600-G10900 standards. Mechanical technicians and maintenance professionals install this ring where precise axial retention is required on small-diameter shafts.

This external retaining ring is suited for use in light mechanical, hydraulic, pneumatic, and electromechanical assemblies where a 1/4 inch shaft is present and groove dimensions match the specified tolerances. Common applications include motors, pumps, actuators, valves, and similar precision assemblies found in industrial and commercial equipment. The cadmium finish provides corrosion resistance in moderate-exposure environments. This ring is sold individually but must be ordered in multiples of 100 units per the minimum order quantity requirement.

Key Features

• Fits 1/4 inch (0.25 inch) shaft diameter with 0.23 inch groove diameter
• SAE 1060-1090 spring steel construction, hardness 69.5-73 HRC
• Cadmium plating finish for corrosion resistance
• Meets Military Specification MS 16624-1025
• Conforms to SAE 1060-1090, UNS G10600-G10900, and ISO 13485:2015 standards
• Ring thickness of 0.025 inches with tight tolerance of plus or minus 0.002 inches

Compatibility

Designed as a standard external retaining ring for mechanical assemblies using a 1/4 inch shaft with a groove diameter of 0.23 inches, groove width of 0.029 inches, and groove depth of 0.01 inches.

Installation Notes

External retaining rings of this type are installed by qualified mechanical technicians using appropriate snap ring pliers sized for the ring ends. De-energize and lock out all power to the assembly before disassembly or ring installation. Inspect the shaft groove for burrs or damage before seating the ring to ensure proper retention and prevent ring failure under load. Do not over-expand the ring during installation, as spring steel at this hardness is susceptible to fracture if stressed beyond its elastic limit.