Application Spotlight: Smalley Retaining Rings as a Replacement for Multiple Bolts

Bolts are a common fastener used to connect two or more components in an assembly. Although bolts can be used as an inexpensive method of assembly, Smalley Spirolox® Retaining Rings can be used as an alternative in some instances to reduce assembly time, weight, and machining costs. As an added benefit, Spirolox retaining rings provide a more aesthetically pleasing assembly.

Two dozen bolts were replaced with just two Spirolox Retaining Rings in the featured gear assembly application below. The gearbox design was slightly modified to add a groove for the retaining ring to operate in. The WHT series 3-turn ring specified for this application is capable of handling medium to heavy loads. Once installed, the ring retains the two components of the gear assembly together.

The redesigned assembly eliminated all bolts and nuts, which simplified the installation process. Unlike bolts, where each has to be screwed into the assembly, Spirolox retaining ring can be manually wound into the groove with no special tools. This is especially important in applications requiring larger diameter rings; traditional snap rings pose a safety risk during installation as they can fly off of the pliers and cause damage or injury.

Smalley’s Retaining Rings are groove interchangeable with many stamped retaining rings. You can find a groove-interchange chart here, and Smalley Engineers are available to answer any questions you may have about how Smalley Retaining Rings can streamline your assembly.