Stainless Steel Extension Spring, For Industrial Use, Feature : Corrosion Proof, Excellent Quality

Physical properties:

• d (wire diameter): This parameter describes the diameter of wire used as material for spring.
• De (External Diameter): External diameter at large end of the spring. Tolerance for this parameter is (+-)2%(indicative).
• Ds (Internal Diameter): Internal diameter at small end of the spring. Tolerance for this parameter is (+-)2%(indicative)
• B.L (Body length): Body length of Extension springs is measured in its uncompressed state Tolerance for this parameter is (+-)2%(indicative).
• F.L (Free length) : Free length means distance between two hooks .(Inside Hooks)
• R (spring rate): This parameter determines spring’s resistance, while it is working. It is measured in 1 DaN/mm = 10 N/mm. Tolerance for this parameter is (+-)15%(indicative).