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Bazz Houston Co.
12700 Western Avenue
Garden Grove, California 92841
Local: (714) 898-2666
Toll Free: (866) 434-2977
Fax: (714) 898-1389
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Compression Springs |
 COMPRESSION SPRINGS are open-coil helical springs wound or constructed to oppose compression along the axis of wind. Helical Compression Springs are the most common metal spring configuration. Generally, these coil springs are either placed over a rod or fitted inside a hole. When you put a load on a compression coil spring, making it shorter, it pushes back against the load and tries to get back to its original length. Compression springs offer resistance to linear compressing forces (push), and are in fact one of the most efficient energy storage devices available.
Configurations: The most common compression spring, the straight metal coil spring, has the same diameter for the entire length. Other configuration options for compression coil springs include hourglass (concave), conical springs and barrel (convex) types. The straight coil spring configuration is the standard coil type for Stock Compression Springs.
Applications: Compression Metal Springs are found in a wide variety of applications ranging from automotive engines and large stamping presses to major appliances and lawn mowers to medical devices, cell phones, electronics and sensitive instrumentation devices. Cone shape metal springs are generally used in applications requiring low solid height and increased resistance to surging.
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| General Information |
| Capability |
We can coil wire from .004” to .312”. We can also help with smaller as well as larger sizes. |
| Materials |
Compression Springs are manufactured from a wide variety of materials including music wire, hard drawn, oil tempered, galvanized wire, stainless steels, and phosphor bronze, as well as exotics such as pre plated materials (gold, silver, tin), inconel, chrome vanadium and many others, including stainless steel compression springs. |
| Equipment |
State of the art CNC wire forming capability as well as conventional spring coiling machines including: Itaya, Nu Coil, MEC, Sleeper/Hartley, Torrington, and many more. |
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Our Engineering Department can assist you from the design stage through prototype to production of your custom metal stampings, progressive stampings, medical stampings, automotive metal stampings, deep drawn stampings or high speed stampings.
We have a secure FTP website and welcome the use of electronic mail.
Send us your stamping design, drawing or sample and we will be pleased to quote |
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| Addtional Information |
Key Parameters:
Dimensions: Outer Diameter, Inner Diameter, Wire Diameter, Free Length, and Solid Height.
Free Length is the overall length of a spring in the unloaded position. Solid Height is the length of a compression spring under sufficient load to bring all coils into contact with adjacent coils.
Spring Rate (stiffness): Spring Rate is the change in load per unit deflection in pounds per inch (lb. /in.) or Newtons per millimeter (N/mm).
Stress: The dimensions, along with the load and deflection requirements, determine the stresses in the compression spring. When a compression spring is loaded, the coiled wire is stressed in torsion. The stress is greatest at the surface of the wire; as the spring is deflected, the load varies, causing a range of operating stress. Stress and stress range govern the life of the compression spring. The higher the stress range, the lower the maximum stress must be to obtain comparable life. Relatively high stresses may be used when the stress range is low or if the compression spring is subjected to static loads only. The stress at solid height must be high enough to permit presetting, yet low enough to avoid permanent damage since springs are often compressed solid during installation.
Helical compression springs
are used to resist applied compression forces or to store energy in the push mode. They have the most common spring configuration and the are found in many applications such as automotive, aerospace and consumer goods. While the most prevalent forma of compression spring is a straight cylindrical spring made from round wire, many other forms are produced. Conical, barrel, hourglass or cylindrical forms are available, with or without variable spacing between coils. Such configurations are used to reduce solid height, buckling and surging, or to produce nonlinear load deflection characteristics. Energy storage capacity is greater for round wire compression springs than for rectangular wire compression springs and can be increased by nesting. Rectangular wire is sometimes employed to reduce solid height or increase the space efficiency of the design. Most die springs are made from rectangular wire for this reason. |
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