Rotor Clip DHO-20SG Metric Internal Snap Retaining Ring

Product Description

The ROTOR CLIP DHO-20SG is a metric internal snap retaining ring designed for a 20mm bore diameter with a 21mm nominal size. Made from steel with a phosphate finish, this ring seats into a machined groove to retain components axially within a bore. It carries a thrust load capacity of 1,213.92 pounds at the groove safety factor and 1,618.56 pounds at the ring safety factor. With a 1mm ring thickness and a free outside diameter of 21.5mm, the DHO-20SG provides reliable retention in precision assemblies. Machinists, maintenance technicians, and mechanical assemblers work with this ring in production and repair applications.

This retaining ring is suited for use in mechanical assemblies requiring internal bore retention, including gearboxes, motors, pumps, and hydraulic components. It is applied wherever a machined internal groove is present to accept a metric snap ring. The 1.1mm groove width and 0.5mm groove depth specifications make it compatible with standard metric groove profiles. Sold in a package quantity of 2 with a minimum order quantity of 1.

Key Features

• 20mm bore diameter with 21mm nominal size for standard metric groove fitment
• Steel construction, material grade SAE 1060-1090 for consistent hardness and spring characteristics
• Phosphate finish for corrosion resistance in typical industrial environments
• Rockwell 30N hardness rating of 66-72 for durability under load
• Groove safety factor thrust load capacity: 1,213.92 pounds; ring safety factor: 1,618.56 pounds
• Groove width 1.1mm, groove depth 0.5mm, ring thickness 1mm for precise dimensional fit

Compatibility

Designed as a standard metric internal snap retaining ring for 20mm bore applications using a groove width of 1.1mm and groove depth of 0.5mm per metric snap ring groove standards.

Installation Notes

Installation requires snap ring pliers sized for internal rings; using incorrect tooling risks distorting the ring or damaging the groove. Ensure the bore groove dimensions match the ring specifications before installation. Confirm the assembly is de-energized and depressurized before servicing any component that contains this ring. Do not re-use a ring that has been removed, as repeated expansion may compromise retention force.