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.

1. Nested Spirawave
Wave Springs for Higher Forces
®
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Nestedsprings.com

2. What are they?
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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
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4. Why use nested springs?
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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. 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
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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™
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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
®
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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
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10. Who can use them?
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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. 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. Application Examples
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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
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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. 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. 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. 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
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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. 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. About Smalley
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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. 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. Nestedsprings.com
The Smalley Advantage
For more information please visit: Smalley.com
© 2019 SMALLEY STEEL RING COMPANY. ALL RIGHTS RESERVED.