Smalley's industry-leading Spirolox® Retaining Rings feature a gapless design with 360° of retaining surface. Unlike other rings, Spirolox has no protruding ears to interfere with mating components in your assembly. The highly versatile Spirolox rings are also groove-interchangeable with circlips, allowing them to replace circlips without any design changes. Are you ready to try the Smalley Advantage?

DEX Expo brings engineers, manufacturers, and solution providers together for focused, high‑value conversations. Discover new technologies, identify relevant exhibitors, and connect directly with experts who can support your next project. With an efficient tabletop format that encourages meaningful discussions, DEX Expo is built for practical insights and real business outcomes. Explore exhibitors and plan your DEX Expo experience.

Design Engineering’s Aerospace theme week has taken off, presented in partnership with Smalley.

From April 27 – May 1, we will be examining the engineering innovations that are driving the next generation of aviation and the evolutions businesses are seeing across the sector.

Visit our landing page for expert insight, evergreen features and in-depth analysis to support engineers and OEMs and ensure they remain competitive in the ever-changing landscape of the aerospace industry.