Why More Design Engineers Are Specifying Compression Wave Springs
The Spirolox part search cross-references similar Spirolox and Smalley part numbers, if the part you searched for cannot be found, Smalley offers several additional series of Wave Springs. To find the best spring for your application, please consult the Smalley website at www.smalley.com
Contact Smalley Engineering for exact dimensions, some small differences exist
TR Springs - Standard Single Turn: This space saving series can function as a spring member and take up axial play, all while maintaining a precise spring force. Designed to fit bore sizes ranging from .50" to 16.00". Standard materials are carbon steel and 17-7 stainless steel. Other materials are available.
TB Spring - Bearing Preload: Designed to lightly contact the housing, these springs eliminate diametral clearance within a bearing. This series was designed to correspond with popular metric bearing sizes. Size range from 16mm to 580mm bore diameter. Carbon, stainless, and other materials are available.
Peak-to-Peak Springs: These springs are lighter and offer a space savings over round wire coiled springs, with the same spring force. Sizes range from .625" bore diameter to 2.00" bore diameter. This series uses multiple turns to achieve varying working heights. A wide variety of materials are available. Standard materials are carbon steel and 17-7 stainless steel.
Instead of conventional round wire springs, coil springs, or wavy washers, more and more design engineers are specifying compression wave springs for dimensional variations in tight radial dynamic conditions. Reason: compared to those alternatives, compact wave springs save space and provide more precise load deflection characteristics. This allows engineers to design smaller assemblies with lower frees lengths and/or lower operating heights - sometimes by as much as 50% - while improving deflection characteristics.
And today, more and more design engineers are specifying Smalley wave springs for two very good reasons.
First, we maintain a large supply of all popular sizes of wave springs that are ready for delivery within 24 hours of ordering. This off-the-shelf delivery means on-time assembly for you, and on-time shipments for your customers. What's more, we maintain a nationwide network of over 900 distributors. That means you can get the wave springs you want, in the quantity you want, where your want, and when you want.
The other reason design engineers prefer Smalley is because they know that as an ISO 9001-certified company, our quality assurance program in second-to-none. Achieving ISO certification in no small task, and Smalley takes great pride in this accomplishment. And in many ways, it's a natural extension of our entire quality program. ISO 9001-certification - one of the most sought-after quality certifications by companies around the world - means that we not only meet our own quality standards, but our quality assurance programs also meet the standards of external auditors.
In practical terms, ISO certification means greater internal operating and manufacturing efficiencies, which is your guarantee that our products consistently meet high-quality standards. Of course, our customers have always been assured of that. But now it's officially certified!
Certification of conformance for materials used and/or finished parts is available upon request. Certification for special design requirements can also be requested when orders are placed.
WAVE DESIGN CONSIDERATIONS
Specific wave springs applications are extremely diverse. However, there are common denominators shared by most designs that can help you determine which wave spring best suits your needs. They are design envelope, load requirement, and operating conditions.
Design envelope - The design envelope usually consists of a bore in which the spring operates and/or a shaft which the spring clears. The spring may pilot the bore or the shaft, depending on the application. Bearing preload springs are designed to lightly contact the bore. Other wave springs "float" between the bore and the shaft.
All wave springs are designed with radial expansion in mind to prevent interference with a shaft. The distance between the loading surfaces defines the operating height of the spring.
Load requirement - The load requirement may be stated in one of three ways:
Operating conditions - The two most prevalent operating conditions to consider when specifying wave springs are fatigue and environment.
Fatigue - all wave springs suffer fatigue over time due to bending stresses and cyclic loading. Smalley offers preset wave springs for handling increased load capacity and extending service life. Residual stresses are built into wave springs during the manufacturing process.
Environment - Operating environments such as high temperatures and corrosive media can pose many challenges, but with careful wave spring material selections, these problems can be minimized.