The Rotor Clip E-50ST ZD is a radially assembled, external 'E' retaining ring designed for 0.5" shaft diameters. Manufactured from carbon steel (SAE 1060-1090) and finished with a zinc dichromate coating, this ring offers enhanced corrosion resistance and durability. Its three-pronged design ensures effective retention of assemblies by making contact with the bottom of the groove, providing a shoulder for secure component positioning. The E-50ST ZD is ideal for applications requiring reliable component retention without the need for lug holes, facilitating easy installation using appropriate retaining ring applicators. This design choice also accommodates lower thrust loadings compared to axial retaining rings, making it suitable for various industrial applications where space constraints and ease of installation are critical. The ring's specifications include a groove diameter of 0.396" to 0.399", a groove width of 0.038" to 0.041", and a groove depth of 0.052". It has a maximum load capacity of 1,110 lbs and can operate at speeds up to 14,000 rpm. The E-50ST ZD is packaged in stacks of 200 rings, each with a weight of 0.025 lbs, facilitating efficient storage and handling. This retaining ring is an economical alternative to axially assembled external tapered section rings, offering a cost-effective solution without compromising performance. Its design and material composition make it a reliable choice for securing bearings, gears, and other components in place, ensuring operational efficiency and longevity.