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Smalley’s new Nested Spirawave® Wave Springs can be used in applications across many different industries. They are used to replace a stack of single-turn wave springs or when a single-turn spring cannot produce the forces necessary within an application. Below are just a few examples of how nested springs can be used.

Applications for Nested Spirawave Wave Springs Bearing Preload

– Valve

– Connector

– Cable

– Push Seal

Nested Spirawave springs produce two to three times more force than a single-turn wave spring. In very high load applications, a three-turn nested spring is able to produce the high forces necessary for heavy duty bearing preload. This is necessary in order to reduce play, and also to limit noise and vibration within an assembly.

Nested springs can provide a high spring force with a low profile in a valve where space is limited. When pressure is applied to the sealing surface, the spring will compress to keep the seal closed. When the seal begins to wear, the spring keeps pressing the seal tight against the surface.

In a connector, the male end rotates, following the groove contour in the female end, with the Nested Spirawave providing the preload between the two halves. The nested spring provides the high load needed in a very tight radial and axial space.

A two-turn nested spring replaces a stack of single-turn wave springs to provide the needed spring force to hold the ends together. A small amount of travel allows for the movement necessary to disconnect the ends when required.

A Nested Spirawave can provide a higher force than a single-turn wave spring while maintaining the precise spring rate necessary to preserve a proper seal. The exact pressure of the face against the sealing surface is essential to avoid excessive wear while maintaining this proper seal.

Smalley’s Nested Spirawave springs have been available as a custom for over 30 years, but are now available as a standard series! They are available in carbon and 17-7 PH stainless steel from .500 to 4″ or 16 to 100 mm, with thousands available for next day shipping. Smalley engineers are available to consult on how a custom or standard nested spring can benefit your application.

Need more information about Smalley’s Nested Spirawave springs? Standard or custom, TFC will provide you with the right part, in the right material, with No Tooling ChargesTM. Smalley’s Nested Spirawave springs have been available as a custom for over 30 years, but are now available as a standard series! They are available in carbon and 17-7 PH stainless steel from .500 to 4′′ or 16 to 100 mm, with thousands available for next day shipping. Smalley engineers are available to consult on how a custom or standard nested spring can benefit your application. Need more information about Smalley’s Nested Spirawave springs?

For further information contact our Smalley Technical team on +44 (0)1435 866011 today.

Visit TFC for more information

TFC Europe Ltd is one of the leading suppliers of technical fastener components to industry, with an unrivalled reputation for delivering innovative products, supply solutions, and exemplary service, to help our customers achieve breakthroughs in product development and productivity.

From the very beginning TFC’s founders in Heathfield, UK were determined to help equipment designers by supplying technical fasteners enabling them to design a better product and to generate more profits for their companies. Half a century later this same approach means that TFC helps not only the designer but also the buyer, and the operations teams by providing a wide variety of fastener and related components via automated and sophisticated supply systems that enable lean manufacturing goals to be met and our customers to improve their profits.

In so doing TFC has become one of the leading fastener distribution businesses in Europe supplying over 3,000 customers, employing over 100 people, working out of a national and European network of logistic service centres as well as being able to support global customers in their manufacturing plants anywhere in the world.

Whether it is a simple threaded bolt or a complex bespoke product made to customer drawing specifications, our quality assured fasteners are guaranteed to provide the perfect solution to your fastening needs.

– Bolts & Socket Screws in various grades
– Smalley Wave Springs and Spirolox Retaining Rings
– Nuts, Washers, Rivets & Screws of all types
– Sheet Metal Fasteners – self-clinch & rivet bushes
– Circlips, Springs, Keys and Seals
– Threaded Inserts – for plastics, timber & metal
– Electronic Hardware – standoffs, handles, ferrules
– Construction Fixings – anchors, through bolts, resin
– Panel, Wire & Pipe Fasteners
– Machined and turned parts to specification

Supply Chain Services – Our supply chain expertise provides significant benefits to customers by reducing costs associated with the purchase, stockholding and handling of a wide range of low-cost fastening and ancillary items. With a flexible inventory managed system; DLF, Kanban or VMI to reduce the supplier base, minimise inventory, direct to the line quality approved products immediately at hand, customers are able to remove a whole variety of hidden administration and transaction costs.

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