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Nested Spirawave® Springs for Higher Forces

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Smalley's Nested Spirawave® Springs are flat wire wave springs with multiple turns, coiled in parallel to produce higher forces. Nested springs can be used to replace stacks of single-turn wave springs which in turn reduces misalignment, counting errors, and simplifies installation and removal. These springs are the perfect solution for applications like heavy-duty bearing pre-load, that require high forces in tight radial and axial spaces.

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Nested Spirawave® Springs for Higher Forces

  1. 1. Nested Spirawave Wave Springs for Higher Forces ® © 2019 SMALLEY STEEL RING COMPANY. ALL RIGHTS RESERVED. Nestedsprings.com
  2. 2. What are they? © 2019 SMALLEY STEEL RING COMPANY. ALL RIGHTS RESERVED.
  3. 3. ISO 13485:2016 Certified Nestedsprings.com Nested Springs What are they? Flat wire wave springs with multiple turns, coiled in parallel to produce higher forces Who can I purchase them from? Smalley is the only manufacturer with a standard nested wave spring series Three-Turn Carbon Steel Click here to request a free sample © 2019 SMALLEY STEEL RING COMPANY. ALL RIGHTS RESERVED.
  4. 4. Why use nested springs? © 2019 SMALLEY STEEL RING COMPANY. ALL RIGHTS RESERVED.
  5. 5. Nestedsprings.com Nested Spring Advantages Two to three times the force of a standard single-turn spring Can replace stacks of single-turn wave springs • Eliminates misalignment and inconsistent loading • Lower cost over stacks • Quick, simple assembly and installation © 2019 SMALLEY STEEL RING COMPANY. ALL RIGHTS RESERVED.
  6. 6. Nestedsprings.com Nested Spring Advantages Sturdy and tangle-resistant design for automated handling Smalley offers fast delivery on standard carbon and stainless parts • From .500 to 4" (16 to 100 mm) • Thousands available from stock for next day shipping • Three week lead time on standard parts in non-stock quantities © 2019 SMALLEY STEEL RING COMPANY. ALL RIGHTS RESERVED.
  7. 7. Nestedsprings.com Nested Spring Advantages Custom parts from .157 to 120" (4 to 3000 mm) available in carbon, stainless, and exotic alloys with No-Tooling-Charges™ © 2019 SMALLEY STEEL RING COMPANY. ALL RIGHTS RESERVED.
  8. 8. ISO 13485:2016 Certified Nestedsprings.com Standard Nested Spirawave • .500 to 4" • 16 to 100 mm Materials Sizes Configurations Two-Turn Carbon Steel Three-Turn Stainless Steel Click here to request a free sample • Two-Turn • Three-Turn • Carbon steel (CST) • 17-7 PH stainless steel ® © 2019 SMALLEY STEEL RING COMPANY. ALL RIGHTS RESERVED.
  9. 9. ISO 13485:2016 Certified Nestedsprings.com Custom Nested Spirawave • .157 to 120" • 4 to 3000 mm Materials Sizes Configurations • Quantity of turns varies based on required force • Carbon steel (CST) • 17-7 PH stainless steel • Exotic alloys • Elgiloy®, Inconel-X750, MP35N, & more Smalley has been manufacturing nested springs as a custom for over 30 years. ® Custom Designs © 2019 SMALLEY STEEL RING COMPANY. ALL RIGHTS RESERVED.
  10. 10. Who can use them? © 2019 SMALLEY STEEL RING COMPANY. ALL RIGHTS RESERVED.
  11. 11. Nestedsprings.com Industries Served • Easy automated handling • Carbon steel standards available from stock • Direct savings over stacks of single-turn springs • 17-7 PH stainless steel standards in stock • Tangle-resistant design • Eliminates miscounted stacks of single-turn springs • Exotic alloys available • Consistent loading • Heaviest load capabilities of any wave spring © 2019 SMALLEY STEEL RING COMPANY. ALL RIGHTS RESERVED.
  12. 12. Nestedsprings.com Industries Served • Flexible design to achieve desired loads • Sample parts available from stock • Easy to install and remove What if my industry wasn’t listed? Nested Wave Springs can be used in many applications that require a high force. Visit our website to learn how we support other markets: smalley.com/industries © 2019 SMALLEY STEEL RING COMPANY. ALL RIGHTS RESERVED.
  13. 13. Application Examples © 2019 SMALLEY STEEL RING COMPANY. ALL RIGHTS RESERVED.
  14. 14. Nestedsprings.com Application: Bearing Preload Customer problem: • Heavy-duty bearing • High pre-load force required • Currently stacking three single-turn springs • Misaligning stacks reduces bearing life © 2019 SMALLEY STEEL RING COMPANY. ALL RIGHTS RESERVED.
  15. 15. Nestedsprings.com Application: Bearing Preload Smalley solution: • Three-turn nested spring • High force needs met • Single filament of wire eliminates misalignments • Consistent loading improves bearing life • Direct cost savings vs. three single-turn springs © 2019 SMALLEY STEEL RING COMPANY. ALL RIGHTS RESERVED.
  16. 16. Nestedsprings.com Application: Electrical Connector Customer problem: • High-vibration environment connector • Needs high forces to maintain connection • Currently stacking two single-turn springs • Tangling in vibratory feeder slows sorting • Need to carefully align springs slows assembly © 2019 SMALLEY STEEL RING COMPANY. ALL RIGHTS RESERVED.
  17. 17. Nestedsprings.com Application: Electrical Connector Smalley solution: • Two-turn nested spring • Single part replaces stack for each unit • Eliminates miscounted stacks • No assembly alignment concerns • Multi-turn design prevents vibratory tangling • Faster assembly leads to cost savings © 2019 SMALLEY STEEL RING COMPANY. ALL RIGHTS RESERVED.
  18. 18. Nestedsprings.com Application: Ball Valve Seal Customer problem: • Currently using exotic alloy spring washer • High pressure seal • Requires high forces to maintain seal • Imprecise load at maximum work height leads to leaks • Extremely corrosive environment © 2019 SMALLEY STEEL RING COMPANY. ALL RIGHTS RESERVED.
  19. 19. Nestedsprings.com Application: Ball Valve Seal Smalley solution: • Three-turn nested spring • High nominal load met • Custom load specs guarantee sealing despite wear • Fast, free samples make redesign prototyping easier • No scrap manufacturing process – less expensive vs. exotic alloy stamped springs © 2019 SMALLEY STEEL RING COMPANY. ALL RIGHTS RESERVED.
  20. 20. Nestedsprings.com The Smalley Advantage For more information or to request a free sample, please visit nestedsprings.com Two-Turn Carbon SteelThree-Turn Stainless Steel © 2019 SMALLEY STEEL RING COMPANY. ALL RIGHTS RESERVED.
  21. 21. About Smalley © 2019 SMALLEY STEEL RING COMPANY. ALL RIGHTS RESERVED.
  22. 22. Nestedsprings.com The Smalley Advantage Smalley Design Engineers provide: • Design collaboration and expertise • Engineered solutions • Unmatched customer service Quality certifications: • ISO 13485 • ISO 9001 • IATF 16949 • AS9100 • ISO 14001 • RoHS AND Reach • DFARS Standard or custom, Smalley will get you the right part, in the right material with No Tooling Charges™ © 2019 SMALLEY STEEL RING COMPANY. ALL RIGHTS RESERVED.
  23. 23. Nestedsprings.com Springs and Rings Smalley Wave Springs: • Reduce spring height by up to 50% • Weight savings from less material and a smaller spring cavity • Fit tight radial and axial spaces Spirolox Retaining Rings: • No Ears to Interfere with mating assembly components • No gap or lugs, ideal for tight radial applications • Interchangeable with stamped ring grooves • No special tools needed for installation and removal • Stainless is standard: 302 & 316 from stock ® ® © 2019 SMALLEY STEEL RING COMPANY. ALL RIGHTS RESERVED.
  24. 24. Nestedsprings.com The Smalley Advantage For more information please visit: Smalley.com © 2019 SMALLEY STEEL RING COMPANY. ALL RIGHTS RESERVED.

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