Rotor Clip SE-21ST Pa B100 E Style Retaining Ring 7/32

Product Description

The ROTOR CLIP SE-21ST PA B100 is an external E-style retaining ring designed to secure components on shafts and in assemblies where a low-profile, three-pronged grip is required. Sized for a 7/32 inch (0.2188 inch) shaft diameter with a 0.188 inch groove diameter, this ring is stamped from SAE 1060-1090 spring steel and finished with a phosphate coating for corrosion resistance. The ring measures 0.025 inches thick and seats in a groove 0.029 inches wide and 0.015 inches deep. It is installed by maintenance technicians, millwrights, and mechanical assemblers working on small-diameter shafts in HVAC equipment, motors, pumps, and similar mechanical assemblies.

This retaining ring is suited for applications requiring a compact external fastener on shafts at or near 7/32 inch diameter. It is commonly used in light-duty mechanical assemblies found in residential and commercial HVAC systems, small electric motors, pump shafts, and precision equipment. The E-style design provides three-prong retention without requiring specialized installation tools beyond standard snap-ring pliers. It ships in minimum order quantities of 100 pieces, making it appropriate for repair shops, assembly lines, and field technicians who carry replacement hardware stock.

Key Features

• E-style external ring with three prongs for positive retention on small-diameter shafts
• Fits 7/32 inch (0.2188 inch) shaft diameter with a 0.188 inch groove diameter
• Stamped from SAE 1060-1090 spring steel for consistent spring-back and holding force
• Phosphate finish provides baseline corrosion resistance in typical indoor mechanical environments
• Hardness rated at 66.5-71 HR30N for reliable retention under dynamic loads
• Conforms to SAE 1060-1090, UNS G10600-G10900, and ISO 13485:2015 standards

Compatibility

Designed as an OEM-style external E-style retaining ring for shafts with a 7/32 inch diameter and a groove diameter of 0.188 inches, suitable for use in any mechanical assembly requiring this groove geometry.

Installation Notes

Installation and removal should be performed by a qualified technician using appropriately sized snap-ring or E-ring pliers to avoid ring distortion or uncontrolled release. De-energize and lock out all equipment before servicing any shaft assembly containing this ring. Do not reuse a ring that has been visibly deformed, over-spread, or removed from service, as repeated flexing may reduce retention force. Follow applicable machinery safety standards and equipment manufacturer procedures when servicing assemblies that contain retaining rings.