Looking for Heavy large extension springs | extension springs for 2013? Contact Katy Spring for all your extension springs or custom extension spring
Extension springs take longer to design because consideration must be given to stress due to initial tension, stress and deflection of hooks, special coiling methods, secondary operations, and allowance for overstretching in assembly.
There are many hook configurations to consider in designing extension springs. Katy Spring can assist in making the right choice for a hook. Generally, crossover hooks are easier and less expensive than full loops over center, and if made without sharp radius bends they often last longer than the full loops over center..
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