Specification Brand : precisespring BulletPoint : The constant force spring is an excellent device for applications where a constant load is required. Some of the many applications of constant force springs ar1e in counterbalances, door closers, cable retractors, hose retrievers, tool head returns, cabinet furniture components, gym equipment, hair dryers, toys, electric motors, appliances, space vehicles, and other long-motion functions. BulletPoint1 : Durable and High-Quality: Our Constant Force wire springs are made from premium quality stainless steel, ensuring durability, corrosion-resistance, and long-term use. BulletPoint2 : Various Sizes: These springs come in 5PCS/10PCS sets and have a wire diameter of 0.5mm to 1.2mm, making them suitable for use in tractors, agriculture, industry, metal construction, vintage cars, house, yard, and much more. BulletPoint3 : Easy to Install: The springs are equipped with hooks, making them easy to install and use in a wide range of applications. BulletPoint4 : Excellent Tension: These springs offer excellent tension, ensuring that they can hold up large loads without breaking or losing elasticity. BulletPoint5 : Versatile: Our Stainless Steel Springs can be used for various applications that require wire springs. With their high-quality construction, these springs are ideal for both commercial and DIY use. ExternallyAssignedProductIdentifier1 : 0762736837007 ExternallyAssignedProductIdentifier2 : 762736837007 ItemName : SUS301 Constant Force Spring,Load 1.48 lbs,ID 0.44",OD 0.52",Total Length 20.98",EXTANDED Length 17.99",Material Wideness 0.38",Material Thickness 0.0059",Pack of 5 ItemPackageDimensions_Height : 3 inches ItemPackageDimensions_Length : 5 inches ItemPackageDimensions_Width : 3 inches ItemPackageQuantity : 1 ItemTypeKeyword : constant-force-springs Manufacturer : shanghai precisespring co.,ltd NumberOfBoxes : 1 NumberOfItems : 5 PartNumber : JCF067-025 ProductDescription : The extension type of Constant Force Spring represents the most basic, yet most versatile, type of constant force spring. It is a pre-stressed flat strip of spring material which is formed into virtually constant radius coils around itself or on a drum. When the strip is extended (deflected) the inherent stress resists the loading force, the same as a common extension spring, but at a nearly constant (zero) rate. A constant torque is obtained when the outer end of the spring is attached to another spool and caused to wind in either the reverse or same direction as it is originally wound. The full rated load of the spring is reached after being deflected to a length equal to 1.25 times its diameter. Thereafter, it maintains a relatively constant force regardless of extension length. The load is basically determined by the thickness and width of the material and the diameter of the coil. preciseSpring offers Stock Constant Force Springs in four Life Cycle ranges: 2500, 4000, 13000 and 25000. Each spring is a roll of high yield Type 301 Stainless Steel strip exerting a nearly constant restraining force to resist uncoiling. We can also provide Custom Constant Force Springs, made to your specification. Guide to Mounting Constant Force Springs A Constant Force Spring is usually mounted by first tightly wrapping it on a drum, then attaching the free end to the loading force such as in a counterbalance application. This relationship can also be reversed. The drum diameter should be 10% to 20% larger than its natural inside diameter. One and one-half wraps should remain on the drum at maximum extension. The strip becomes unstable at long extensions and should be guided to prevent twisting or kinking on recoil. Idler pulleys must be larger in diameter than the natural diameter and should never be used to cause back-bending against the natural radius of curvature. ProductSiteLaunchDate : 2024-09-24T07:00:00.000Z Size : 1.2x10x50mm SupplierDeclaredDgHzRegulation : not_applicable UnspscCode : 31160000