Rotor Clip SH-225ST Zd External Retaining Ring 2-1/4 in

Product Description

The ROTOR CLIP SH-225ST ZD is an external retaining ring designed to secure components on a 2-1/4 inch (57.15 mm) shaft by seating into a precision-machined external groove. Manufactured from SAE 1060-1090 carbon steel and finished with a yellow zinc dichromate coating for corrosion resistance, this ring delivers a hardness rating of 47-52 HRC for dependable retention under load. With a groove diameter of 2.12 inches and a ring thickness of 0.078 inches, it is engineered to tight dimensional tolerances. Machinists, maintenance technicians, and mechanical assembly professionals install this type of ring in rotating shaft assemblies, drive trains, and power transmission components.

This external retaining ring is suited for industrial and mechanical applications where a positive, reusable shaft stop is required. Typical installations include pump shafts, gearbox assemblies, motor shafts, and conveyor drive components. The zinc dichromate finish provides a baseline level of environmental protection in moderate-exposure environments. The ring conforms to SAE 1060-1090 and UNS G10600-G10900 fastener standards, and the manufacturing process is aligned with ISO 13485:2015 quality management requirements, making it appropriate for precision-critical assemblies.

Key Features

• Fits 2-1/4 inch (2.2500 inch decimal) shaft diameter with a 2.12 inch groove diameter
• SAE 1060-1090 carbon steel construction rated at 47-52 HRC hardness
• Yellow zinc dichromate finish for corrosion resistance
• Ring thickness of 0.078 inches with a tolerance of plus or minus 0.003 inches for consistent groove fit
• Groove width of 0.086 inches and groove depth of 0.065 inches for precise seating
• Meets SAE 1060-1090, UNS G10600-G10900, and ISO 13485:2015 standards

Compatibility

Designed as an OEM-style external retaining ring for shafts with a 2-1/4 inch nominal diameter and a groove diameter of 2.12 inches machined to SAE standard tolerances.

Installation Notes

External retaining rings of this type are installed and removed using snap ring pliers sized for external rings. Disengage all power and relieve any load on the shaft assembly before servicing. Inspect the shaft groove for burrs or damage before installation, as groove defects can compromise ring retention. Follow applicable machinery safety standards and equipment manufacturer guidelines when working on rotating assemblies.