Rotor Clip SH125ST Pa B100 External Retaining Ring

Product Description

The ROTOR CLIP SH125ST PA B100 is an external retaining ring designed for 1-1/4 inch (1.2500 inch decimal) shaft diameters with a groove diameter of 1.176 inches. Manufactured from SAE 1060-1090 carbon steel and beryllium copper stainless steel with a phosphate finish, this ring provides reliable axial retention on shafts in industrial and mechanical assemblies. It measures 0.050 inches in ring thickness and features a hardness rating of 47-52 HRC, making it suitable for demanding load-bearing applications. Licensed machinists, millwrights, and maintenance technicians install this type of ring during shaft assembly or component replacement procedures.

This external retaining ring is used in shaft-and-housing assemblies where a low-profile, snap-in retention method is required. Typical applications include gearboxes, motors, pumps, conveyors, and other rotating machinery requiring positive axial positioning of bearings, gears, or collars. The phosphate finish offers baseline corrosion resistance suitable for indoor mechanical environments. This SKU is sold in a minimum order quantity of 100 rings per package, making it appropriate for production runs, MRO stocking, or high-volume service operations.

Key Features

• External ring style for 1-1/4 inch shaft diameter with 1.176 inch groove diameter
• SAE 1060-1090 carbon steel construction with beryllium copper stainless steel material grade
• Phosphate finish for surface protection and reduced friction during installation
• 47-52 HRC hardness for durable axial load retention
• Groove width of 0.056 inches with tolerance of 0.000 to 0.004 inches for precise fitment
• Compliant with SAE 1060-1090, UNS G10600-G10900, and ISO 13485:2015 standards

Compatibility

Designed as an OEM-style external retaining ring for 1-1/4 inch diameter shafts conforming to SAE 1060-1090 and UNS G10600-G10900 fastener standards in standard inch-measurement assemblies.

Installation Notes

External retaining rings of this type are installed by machinists, millwrights, or maintenance technicians using snap ring pliers sized for external rings. Shaft and groove surfaces should be clean and free of burrs before seating the ring. Always de-energize and lock out the equipment before disassembling shaft components. Do not reuse a retaining ring that has been removed, as repeated expansion can compromise holding force.