Compression springs are designed for creating resistance to a compressive force. The bodies are open - coiled, helical shaped, and usually coiled with a constant - diameter. Round wire is most often used in fabricating compression springs, as it is most adaptable to standar... 

Tension Springs are designed to absorb and store energy by creating a resistance to a pulling force. Tension Spring ends include threaded inserts, extended twist or cross loops, hooks or eyes at varying distances from the spring body, expanded and reduced eyes, teardrop - sh... 

Torsion Springs are designed to offer resistance to externally applied torque. This type of spring is most often made of round wire, can be closed or open wound, and is usually designed to wind up. The ends can be bent, twisted, hooked, or looped to suit the application. A u...