Rotor Clip E-50ST Pa B100 External E Retaining Ring 1/2 in

Product Description

The ROTOR CLIP E-50ST PA B100 is an external E style retaining ring designed to secure components onto a 1/2-inch shaft. The three-prong E style profile snaps into a machined groove on the shaft exterior, providing axial retention without fasteners. Manufactured from SAE 1060-1090 steel with a phosphate finish, the ring delivers hardness in the 37-43 HRC range for reliable performance under load. The groove diameter is 0.396 inches, ring thickness is 0.042 inches, and the free outside diameter is 0.8 inches. Licensed HVAC technicians, plumbers, pump mechanics, and general industrial maintenance personnel install this type of fastener during shaft assembly and component replacement work.

This retaining ring is suited for shaft assemblies in residential and commercial mechanical equipment where external groove retention is required. Typical applications include motor shafts, pump impeller assemblies, gear train components, and similar rotating or stationary shaft configurations with a 0.5-inch shaft diameter. The phosphate finish provides a base layer of corrosion resistance appropriate for indoor mechanical environments. The ring ships in a minimum order quantity of 100 units per package, making it practical for stocking in maintenance and assembly operations.

Key Features

• E style three-prong external design snaps onto shaft groove without tools in many applications
• 1/2-inch (0.5000 inches) shaft diameter with 0.396-inch groove diameter
• SAE 1060-1090 steel construction with 37-43 HRC hardness rating
• Phosphate finish for base corrosion resistance in indoor mechanical environments
• Ring thickness of 0.042 inches with tolerance of -0.002 to 0.002 inches
• Meets SAE 1060-1090 and UNS G10600-G10900 fastener standards

Compatibility

Designed for external groove applications on 0.5-inch diameter shafts conforming to groove diameter specifications of 0.396 inches with a groove width of 0.046 inches and groove depth of 0.052 inches.

Installation Notes

Installation and removal of E style retaining rings is typically performed by mechanical technicians using retaining ring pliers sized for the prong openings. Always de-energize and lock out equipment before servicing any shaft assembly. Verify groove dimensions match ring specifications before installation to prevent ring dislodgment under load. Follow applicable machinery safety standards and equipment manufacturer guidelines during assembly.