John Evans’ Sons is the international leader in the design and manufacturing of constant force springs, constant force spring assemblies and variable force pusher springs. If your application is to counterbalance or to obtain a large amount of torque through a small amount of rotation, our custom spiral torsion springs are well suited. Our vibration isolators are for the ultimate shock and vibration protection. Helical mounts, also known as cable mounts, provide three axis protection in any environmental conditions. Custom design, in-house tooling and precision manufacturing, combined with a wide & varied stock spring selection allows us to serve a wide variety of high tech applications from military to medical and from the depths of the seas to aerospace.
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