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Spring are mechanical devices that store and apply kinetic energy. They’ve been around a long time and continue to play essential roles in a wide range of machines, vehicles, and engineering tools.

1. Constant Force Spring 2. Constant Torque Spring 3. Constant Force Spring for Carbon Brush 4. Power Spring and Prestressed Power Spring 5. Variable Force Spring 6. Spring-Strip Tube 7. Assembly and ...

John Evans’ Sons is the international leader in design and manufacturing of constant force springs, constant force spring assemblies and pusher springs (variable force). Our vibration isolators are ...