External Lugs

External lugs, a specific feature of some snap rings or spiral rings, are designed to fit into the bottom of the groove within a cylindrical bore or housing. These inverted lugs offer several advantages, including providing greater clearance on a shaft or within a housing. The design of external lugs allows them to sit flush with the bottom of the groove, maximizing available space on the shaft or within the housing. This feature is particularly beneficial when retaining bearings or other components with large corner radii or chamfers, as it ensures optimal clearance without interference. Additionally, external lugs often feature grip holes, which allow for quick and easy installation or removal of the snap ring using circlip pliers or similar tools. This facilitates efficient assembly and maintenance tasks, reducing downtime and enhancing productivity.