Smalley Steel Ring CO.
Smalley manufactures retaining rings and wave springs, including products such as Spirolox, constant section snap rings, WaveRing, Hoopster, Laminar Seal, and self-locking rings, as well as wave springs in various configurations including crest-to-crest, single-turn, nested, and linear designs. The company serves the medical, oil and gas, automotive, aerospace, windpower, consumer, industrial, off-highway, and e-mobility industries. The company offers custom design services for both retaining rings and wave springs, and works with standard and non-standard materials with various finishes.
Their plant
| Facility | City | State | Employees | Status |
|---|---|---|---|---|
| Smalley Steel Ring CO. | Lake Zurich | IL | 500+ | ACTIVE |
Compiled from federal records — EPA, OSHA, SAM.gov and the U.S. Census — and from the company’s own website. Federal source data is public domain. Each plant’s page names the source of every field.


