Wave Spring Introduction All Springs Are Not Equal® Product Performance Smalley Wave Springs offer the unique advantage of space savings when used to replace coil springs. By reducing spring operating height, wave springs also produce a ­ decrease in the spring cavity. With a smaller assembly size and less material used in the manufacturing process, a cost savings is realized. Wave springs operate as load bearing devices. They take up play and compensate for dimensional variations within assemblies. A virtually unlimited range of forces ­ can be produced whereby loads build either gradually or abruptly to reach a predetermined working height. This establishes a precise spring rate in which load is proportional to deflection. Functional requirements are necessary for both dynamic and static spring applications. Special performance characteristics are individually built into each spring to satisfy a variety of precise operating conditions. Typically, a wave spring will occupy an extremely small area for the amount of work it performs. The use of this product is demanded, but not limited to tight axial and radial space constraints. SMALLEY WAVE SPRING With their smooth, circular coiled sinusoidal wave form, and rolled round edges of pre-tempered raw material, Smalley’s edgewound Wave Springs offer many advantages over die stamped products. Loads and spring rates are more accurate, more predictable, and may be toleranced better than 50 percent tighter than stampings. The force of a Smalley Wave Spring will increase at a uniform rate throughout most of its available deflection. By any criteria, Smalley Wave Springs offer their users higher dependability and better performance. Since they are produced from full hard, pre-tempered raw material, there is no risk of distorting the spring during a hardening heat treatment. By contrast, subsequent manufacturing procedures for stamped wavy washers can lead to problems such as fatigue cracking and inaccurate or inconsistent loading between springs. All told, the metallurgy, the mechanical properties and the uniform dimensional stability of the Smalley edgewound Wave Spring provide a component for precision quality applications. COIL SPRING

Wave Spring Introduction Wave Spring Types Gap & Overlap Type Conventional Gap and Overlap Type Wave Springs are used in a wide variety of applications. For short deflections and low-medium forces, they function with precision and dependability. Gap Type Wave Spring Overlap Type Wave Spring These two types of Smalley Wave Springs permit radial expansion or growth in diameter within a cavity, without the binding or hang-up normally associated with die stamped wave washers. Just as their terms imply, the gap type is split to retain a gap between the ends, while the overlap type has overlapping...

Wave Spring Introduction Wave Spring Types (cont’d) Crest-to-Crest with Optional Shim Ends Crest-to-Crest Wave Springs are also available with squared-shim ends. Shim ends ­ provide a 360˚ contact surface when compared to the wave point contact of plain ends. The shim-ends, under load, more evenly distribute the spring’s force upon adjacent components. This feature is similar to the ­ oncept of double-disc grinding springs for a c flat surface. Shim ends have also been used to affix springs to mating components, as a flat locating surface that may be attached by various methods in the assembly....

Wave Spring Applications B. Face Seal A. Pressure Relief Valve D. Bayonet Connector E. Multi-Tooth Cutter A. Pressure Relief Valve B. Face Seal An exact load applied to the top sealing plate was accomplished using a flat wire wave spring. Air pressure entering the top slots forces the plate away from the sealing surface providing the pressure relief mechanism. Pressure on the round belt is produced by compressing the Wavo Spring through the sheave halves. The top threaded cap rotates to adjust the Wavo compression. The Wavo can produce a high force in a tight radial cavity. Overlap Type Wave...

Wave Spring Applications F. Slip Clutch J. Sprinkler Valve I. Low Voltage Connector Clutch drives when the “V”-detents are in the “V”-slots. A Smalley Wave Spring maintains pressure to hold this position. As torque is in­ reased, the “V”-detents c will ride up and out the “V”-slots, depressing the wave spring and developing the slip mechanism. When torque is decreased, the wave spring forces the “V”-detents firmly into the “V”-slots to drive again. One of the most common wave spring applications world-wide is a bearing p ­ reload arrangement as i ­llustrated. Having the proper load will often...

Wave Spring Applications L. Ball Valve M. Quick Disconnect The force provided by the Crest-to-Crest Wave Spring in this oil valve application precisely regulates the amount of oil that is released. The Crest-to-Crest spring provides accurate resistance in a small space, allowing the overall size of the valve to be greatly reduced. A Smalley Crest-to-Crest Wave Spring is used to reduce the overall spring height in this application. The wave spring allows the seat to oscillate on the ball, keeping a tight seal in the operating position. The reduction in spring height and resulting smaller spring...

SSR Series - Standard Section Springs Stock Items in carbon steel and 17-7 PH stainless steel. Springs listed below are 3 wave, Overlap Type. Smalley Part Number 1, 4 SSR-0050 SSR-0062 SSR-0075 SSR-0087 SSR-0100 SSR-0112 SSR-0125 SSR-0137 SSR-0150 SSR-0162 Clears Shaft Diameter Load Work Free (lb) Height Height 2 Radial Wall Add suffix “-S17” for 17-7 stainless steel. Reference dimension. Theoretical dimension; measured in lb/in. 4 See pages 132-133 for How to Order. 1 2 3 Simplify your design process by downloading CAD models of standard retaining rings and wave springs at www.smalley.com/cad-models....

Clears Shaft Diameter Load Work Free (lb) Height Height 2 Radial Wall GAP TYPE SSR-0175 to SSR-1600 Product Dimensions All dimensions in inches unless otherwise specified. MULTI-WAVE (SEE TABLE) RADIAL WALL CLEARS SHAFT DIAMETER LOAD AT WORK HEIGHT OPERATES IN BORE DIAMETER Add suffix “-S17” for 17-7 stainless steel. Reference dimension. 3 Theoretical dimension; measured in lb/in. 4 See pages 132-133 for How to Order. 1 2