RZ-001I Extension Spring

Extension springs in 4280 spring sizes for fast delivery from stock made of normal steel EN 10270-1 and stainless steel EN 10270-3-1.4310 from Gutekunst. The extension springs are made of round spring steel wire in a cylindrical shape with a 1/1 German eyelet on each side and a linear spring characteristic in quality grade 2 (medium tolerance range) according to DIN EN 15800. Simply select the right tension spring on www.Federnshop.com and order it directly from Gutekunst via the shopping cart. In addition to its catalog program, Gutekunst produces individual extension springs according to customer specifications in any desired size, design and eyelet shape from 0.2 to 12.0 mm wire diameter from all common types of spring steel in small quantities and large series. In addition to the classic cylindrical extension spring designs with a linear spring characteristic, Gutekunst also produces conical or barrel-shaped tension springs individually as required.

Technical Data Mat EN 10270-3-1.4310 - type of material Wri Left - coiling direction d 0.4 mm Wire diameter Di 1.6 mm inner coil diameter Ditol 0.08 mm (+/-) tolerance of inner coil diameter Dd mm diameter of mandrel Ddmin 1 mm Min. possible mandrel diameter Ddmax 1.3 mm maximum possible mandrel diameter Lk0 1.2 mm length of spring body Ls 20 mm leg length LsH mm leg length of the lever leg LsR mm leg length of the recumbent leg alpha 0 degree leg position when relaxed alpha1 degree prestressed rotational angle alphah degree working rotational angle alphan 23.35 degree maximum

Technical Data Mat EN 10270-1 - type of material d 0.2 mm Wire diameter D 2.9 mm Mean coil diameter Dd 2.3 mm maximum diameter of mandrel De 3.1 mm Outer coil diameter Detol 0.25 mm (+/-) tolerances of outer coil diameter Dh 3.4 mm minimum diameter of bush F1tol N (+/-) tolerance of prestressed spring force F2tol N (+/-) tolerance of loaded spring force Fn 0.46 N maximum force in static use Fntol 0.1 N (+/-) tolerance of maximum force in static use Lk mm buckling length L0 7.5 mm unstressed spring length L0tol 0.96 mm (+/-) tolerance of unstressed spring length

Scaled prices Technical Data Download datasheet CAD data Path-force calculation Scaled prices (Price group: ZG) Quantity Single price [EUR] 1 2.8300 EUR 7 1.9200 EUR 17 0.9600 EUR 37 0.6200 EUR 75 0.4900 EUR 125 0.4518 EUR 175 0.4355 EUR 250 0.4246 EUR 350 0.3975 EUR 450 0.3888 EUR Technical Data Formula symbols Value Unit Description Mat EN 10270-3-1.4310 - type of material s2 mm loaded spring deflection L2 mm loaded spring length F2 N loaded spring force Oefo 1/1 deutsche - loop shape Oest 180 degree loop position Oesttol 37 degree (+/-) tolerance of loop position d 0.2 mm Wire diameter D mm mean coil diameter De 2.7 mm outer coil diameter Detol 0.15 mm (+/-) tolerance of outer coil diameter Dh 3.2 mm minimum bush diameter F0 0.061 N initial tension Fn 1.101 N Maximum spring force Fntol 0.1 N (+/-) tolerance of maximum spring force Lk 5.1 mm length of unstressed spring body L0 8.8 mm length of unstressed spring, measured from inner edge of loop to inner edge of loop L0tol 0.6 mm (+/-) tolerance of unstressed length L1 mm Prestressed spring length Ln mm maximum spring length, inner loop to inner loop sn 28.31 mm Maximum spring deflection Lh 1.85 mm distance of inner edge of loop from the spring body m mm loop opening width R 0.037 N/mm Spring rate nt pc. total number of coils Gew 0.0512 g weight of one spring PG ZG - price group