Rotor Clip SH-125ST Mcd External Retaining Ring 1-1/4 in

Product Description

The ROTOR CLIP SH-125ST MCD is an external retaining ring designed for shaft retention applications requiring a secure, low-profile fastening solution. Manufactured from SAE 1060-1090 spring steel with a cadmium finish, this ring seats into a machined groove on a 1-1/4 inch shaft and provides axial retention of components such as bearings, gears, and housings. The ring measures 0.05 inches thick and 0.056 inches in groove width, with a hardness rating of 47-52 HRC. It meets Military Specification MS 16624-1125 and conforms to SAE 1060-1090 and UNS G10600-G10900 standards. Machinists, maintenance technicians, and mechanical assembly professionals install this ring using standard external retaining ring pliers.

This retaining ring is suited for rotating and stationary shaft assemblies in industrial machinery, power transmission equipment, pumps, motors, and drive systems where a 1-1/4 inch shaft diameter is present. The cadmium plating provides corrosion resistance in moderate service environments. It is appropriate for applications that require compliance with military or aerospace-adjacent fastener standards, including those governed by MS 16624-1125. The compact groove depth of 0.037 inches keeps shaft material removal minimal.

Key Features

• Fits 1-1/4 inch (31.75 mm) shaft diameter with 1.176 inch groove diameter
• SAE 1060-1090 spring steel construction with 47-52 HRC hardness
• Cadmium finish for corrosion resistance
• Meets Military Specification MS 16624-1125
• Conforms to SAE 1060-1090, UNS G10600-G10900, and ISO 13485:2015
• Ring thickness of 0.05 inches with tight tolerance of plus or minus 0.002 inches

Compatibility

Designed as an OEM-style external retaining ring for 1-1/4 inch shaft diameter applications requiring a grooved shaft seat. Verify groove diameter, groove width, and groove depth against shaft specifications before installation.

Installation Notes

Installation and removal require external retaining ring pliers sized for this ring diameter. Power down and de-energize any equipment before servicing shaft assemblies. Inspect the shaft groove for burrs or damage that could prevent proper ring seating or cause premature disengagement. Do not hammer or pry the ring into position, as this can deform the ring and compromise retention capacity.