Rotor Clip HO-300ST Pd Internal Snap Retaining Ring 3in

Product Description

The ROTOR CLIP HO-300ST PD is an internal snap retaining ring designed for 3-inch nominal bore applications. Manufactured from 1060/1090 grade spring steel with a phosphate finish, this ring seats into a machined groove to axially retain components inside a bore without the need for threaded fasteners or pressed shoulders. It measures 3.325 inches free outer diameter with a ring thickness of 0.093 inches and is engineered to withstand thrust loads up to 23,150 pounds at the groove safety factor and up to 40,093 pounds at the ring safety factor. Maintenance technicians and machine builders working on rotating assemblies, pumps, gearboxes, and hydraulic components typically specify this type of ring for reliable axial retention.

This internal retaining ring is suited for industrial and mechanical assemblies where a 3-inch bore diameter is present. Common install scenarios include pump housings, gearbox bores, motor end bells, and hydraulic cylinder assemblies across commercial and industrial applications. The groove accepts a width of 0.103 inches with a depth of 0.091 inches. The ring is sold individually but carries a minimum order quantity of 5 units, making it practical for both single-unit repairs and small-batch production runs.

Key Features

• 3-inch nominal bore size with a free outer diameter of 3.325 inches for consistent groove seating
• Spring steel construction, material grade 1060/1090, for high tensile strength and snap-fit retention
• Phosphate finish provides corrosion resistance and surface lubricity during installation
• Groove safety factor thrust load capacity of 23,150 pounds and ring safety factor of 40,093 pounds
• Groove width tolerance of -0.000 to 0.005 inches and ring thickness tolerance of -0.003 to 0.003 inches for precise fitment
• Meets SAE 1060-1090 and ISO 13485:2016 standards

Compatibility

Designed as an OEM-style internal snap retaining ring for assemblies with a 3-inch nominal bore diameter and a groove width of 0.103 inches by 0.091 inches groove depth machined to standard tolerances.

Installation Notes

Installation and removal of internal snap retaining rings requires snap ring pliers sized for internal rings. Always de-energize, depressurize, and lock out the equipment before disassembling any rotating or hydraulic assembly. Confirm the groove dimensions and tolerances match the ring specifications before installation to avoid ring ejection under load. Refer to applicable ANSI and OEM assembly standards for proper groove machining requirements.