Compression springs are helical designed springs for compression and tension whereby the spring gets compressed (shorter) as more weight is applied.Extension springs are helical designed springs to work with a tension load whereby the spring stretches as more load is added.Torsion springs are helical designed springs used to exert a rotary force.Attributes:• Springs meet or exceed current standards and material grades.• RoHS compliant• Performance-basedApplication:Consult your owner’s manual or contact your local Cat Dealer for more information.