Rotor Clip RE-43ST Pa Reinforced E Retaining Ring 7/16 in

Product Description

The ROTOR CLIP RE-43ST PA is an external reinforced E style retaining ring designed to secure components on shafts in demanding fastener applications. Manufactured from SAE 1060-1090 steel with a phosphate finish, this ring fits a 7/16 inch (0.4375 inch decimal) shaft diameter and seats into a groove with a 0.343 inch diameter. The three-prong reinforced E style design provides positive retention with easy side-load installation, making it a practical choice for assemblers and maintenance technicians working on shafts where circlip access is limited. Hardness is rated at 47-52 HRC for reliable holding force under mechanical load.

This retaining ring is suited for use in mechanical assemblies across industrial, HVAC, and general trade applications where external shaft retention is required. The phosphate coating provides a baseline level of corrosion resistance and paint adhesion for environments with light moisture exposure. Its compact profile and standardized groove dimensions make it a common fit for OEM production and aftermarket repair work on rotating equipment, motors, and drive components. Installation requires no specialized tools beyond standard retaining ring pliers sized for E style rings.

Key Features

• Reinforced E style design with 3 prongs for secure side-load installation on external shafts
• Fits 7/16 inch shaft diameter with a 0.343 inch groove diameter
• SAE 1060-1090 steel construction rated at 47-52 HRC hardness
• Phosphate finish for light corrosion resistance and surface protection
• Ring thickness of 0.035 inches with tight tolerance control (-0.002 to +0.002 inches)
• Meets SAE 1060-1090 and UNS G10600-G10900 material standards; ISO 13485:2015 referenced

Compatibility

Designed as an OEM-style external retaining ring for shafts requiring a 7/16 inch shaft diameter and a 0.343 inch groove diameter with a 0.040 inch groove width. Confirm groove dimensions against assembly drawings before installation.

Installation Notes

Installation is typically performed by mechanical assemblers or maintenance technicians using E style retaining ring pliers matched to the prong spacing of this ring. Disengage power and de-energize any rotating equipment before servicing shaft assemblies. Verify groove diameter and width match the ring specifications prior to installation to avoid improper seating or ring failure under load. Do not reuse a ring that has been removed, as repeated installation cycles can affect retention force.