Compression Springs are open-coil helical springs that offers resistance to a compressive force applied axially. Helical compression springs are used to resist applied compression forces or to store energy in a push mode. Compression springs have the most common configuration and are most commonly used in automotive, aerospace and consumer applications. Most compression springs are a straight cylendrical spring made of round wire. Ace Wire Spring & Form, a manufacturer of compression springs produces a variety of compression types, shapes, and specific specifications. Click here for compression springs specifications.
Compression Spring Types: Compression springs from a manufacturer come in a variety of types including: Conical Compression, Barrel, Hourglass and Cylydrical shapes and may have various spacing or no spacing at all between coils.
Wire Selection: rectangular, round, square or special-section. Round being the most adaptable.
Compression Spring Mandatory Specification: the functional design characteristics.
Compression Spring Secondary Specification: the secondary characteristics, which is useful for reference and should be considered advisory data.
Dimensional Limits: governed by the space allotted with regard to allowable solid height and outside and inside diameters.
Spring Stress Level: determined by the dimensional limits together with the load and deflection requirements.Our compression springs are stress-relieved to remove residual bending stresses produced by the coiling operation.
Compression Spring Stress Levels:
A compression spring that can be compressed solid without permanent set, so that an extra operation for removing set is not needed. These springs are designed with torsional stress levels when compressed solid that do not exceed about 40 percent of the minimum tensile strength of the material.
A compression spring which can be compressed solid without further permanent set after set has initially be removed. These may be pre-set by the spring manufacturer as an added operation, or they may be pre-set later by the user prior to or during the assembly operation. These are springs designed with torsional stress levels when compressed solid that do not exceed 60 percent of the minimum tensile strength of the material.
Springs which cannot be compressed solid without some further permanent set taking place because set cannot be completely removed in advanced. These springs involve torsional stress levels which exceed 60 percent of the minimum tensile strength of the material. The spring manufacturer will usually advise the user of the maximum allowable spring deflection without set whenever springs are specified in this category.
Remember: It is extremely important to consider carefully the space allotted to insure that the compression spring will function properly to begin with, thereby avoiding costly design changes.