Retaining Rings, Which Are Available In Several Types And Various Sizes, Are Used To Fasten Assemblies On Shafts Or Inside Housings And Bores. The Ring Installs Into A Groove, Thereby Creating A Shoulder That Will Retain The Assembly. They Function With A Minimal Amount Of Surface Prep To Either The Shaft Or The Housing. These Are Only A Few Of The Applications In Which Retaining Rings Are Used, Often Being More Efficient And Cost-Effective Than Traditional Fasteners Such As Cotter Pins, Bolts, Nuts, Washers, Screws And More.