Rotor Clip BE-12ST Pa Bowed E Retaining Ring 1/8 in

Product Description

The ROTOR CLIP BE-12ST PA is an external bowed E style retaining ring designed for 1/8 inch (0.1250 inch) shaft diameters. The bowed profile generates axial preload against the retained component, reducing end play and preventing loosening under vibration. Manufactured from SAE 1060-1090 steel with a phosphate finish for corrosion resistance, this ring measures 0.0100 inch in thickness and features a 3-prong design for reliable radial retention. It seats into a groove 0.0220 inch wide and 0.0150 inch deep. Machinists, assembly technicians, and maintenance professionals working with small-diameter shafts install this type of fastener in motors, pumps, valves, and precision mechanical assemblies.

This retaining ring is suited for light-duty shaft retention applications where a compact external ring with axial load capability is required. Typical installations include small electric motors, HVAC blower shaft assemblies, pump impeller shafts, and similar precision components found in residential and commercial mechanical equipment. The phosphate finish provides moderate corrosion protection appropriate for indoor and controlled-environment applications. Minimum order quantity is 100 pieces.

Key Features

• Bowed profile applies axial preload to reduce end play and resist vibration-induced loosening
• 3-prong external design for secure radial retention on 1/8 inch shafts
• SAE 1060-1090 steel construction with hardness rated at 84.5-87 HR15N
• Phosphate finish for corrosion resistance in controlled environments
• Groove diameter 0.0950 inch with tolerance of 0.0000 to 0.0020 inch
• Conforms to SAE 1060-1090, UNS G10600-G10900, and ISO 13485:2015 standards

Compatibility

Designed as an OEM-style external retaining ring for 1/8 inch diameter shafts requiring a bowed E style seat. Verify groove width and depth dimensions against application requirements before installation.

Installation Notes

Installation of E style retaining rings requires appropriate external ring pliers or applicator tooling sized for small-diameter rings. Power down and de-energize any equipment before servicing shaft assemblies. Inspect the shaft groove for burrs or damage that could prevent proper ring seating. Do not over-compress the ring during installation, as deformation can reduce retention load and compromise the axial preload function.