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    Tension spring is designed and manufactured according to high precision standard, which can be widely used in test, research and development, trial production and maintenance. All tension springs have the same diameter of spring body and are made of bending ring with the same diameter of spring body. There is tension at the beginning of winding, and some force is needed at the beginning of separating the coil.

    Find the right spring（Please separate the search scope with the middle cross bar, for example: 0.14-0.32）

    • (in)      (mm)

    Part No. Wire
    Diameter    		 Outside
    Diameter    		 Free Length
    Approx    		 Ext. Load SpringRate Initial
    Tension    		 Contrast Download
    in mm in mm in mm in mm lb N lb/in N/mm lb N
    L3810-0376-12700-M 0.148 3.76 1.5 38.1 5 127 8.62 218.95 74.49 331.35 18.7 3.27 6.7 29.8
    L3810-0376-13970-M 0.148 3.76 1.5 38.1 5.5 139.7 9.94 252.48 74.49 331.35 15.3 2.68 6.7 29.8
    L3810-0376-15240-M 0.148 3.76 1.5 38.1 6 152.4 11.26 286 74.49 331.35 12.9 2.26 6.7 29.8
    L3810-0376-16510-M 0.148 3.76 1.5 38.1 6.5 165.1 12.58 319.53 74.49 331.35 11.2 1.961 6.7 29.8
    L3810-0376-17780-M 0.148 3.76 1.5 38.1 7 177.8 13.9 353.06 74.49 331.35 9.8 1.716 6.7 29.8
    L3810-0376-19050-M 0.148 3.76 1.5 38.1 7.5 190.5 15.22 386.59 74.49 331.35 8.8 1.541 6.7 29.8
    L3810-0376-20320-M 0.148 3.76 1.5 38.1 8 203.2 16.54 420.12 74.49 331.35 7.9 1.384 6.7 29.8
    L3810-0450-11430-M 0.177 4.5 1.5 38.1 4.5 114.3 6.35 161.29 121.9 542.24 59.9 10.49 10.97 48.79
    L3810-0450-12700-M 0.177 4.5 1.5 38.1 5 127 7.37 187.2 121.9 542.24 46.9 8.21 10.97 48.79
    L3810-0450-13970-M 0.177 4.5 1.5 38.1 5.5 139.7 8.38 212.85 121.9 542.24 38.5 6.74 10.97 48.79
    L3810-0450-15240-M 0.177 4.5 1.5 38.1 6 152.4 9.4 238.76 121.9 542.24 32.7 5.73 10.97 48.79
    L3810-0450-16510-M 0.177 4.5 1.5 38.1 6.5 165.1 10.41 264.41 121.9 542.24 28.4 4.97 10.97 48.79
    L3810-0450-17780-M 0.177 4.5 1.5 38.1 7 177.8 11.42 290.07 121.9 542.24 25.1 4.4 10.97 48.79
    L3810-0450-19050-M 0.177 4.5 1.5 38.1 7.5 190.5 12.44 315.98 121.9 542.24 22.5 3.94 10.97 48.79
    L3810-0450-20320-M 0.177 4.5 1.5 38.1 8 203.2 13.45 341.63 121.9 542.24 20.3 3.56 10.97 48.79
    L4000-0360-09210-M 0.142 3.6 1.575 40 3.626 92.1 6.496 165 68.34 304 20.2 3.54 10.29 45.79
    L4000-0360-11400-M 0.142 3.6 1.575 40 4.488 114 9.094 231 68.34 304 12.7 2.22 10.29 45.79
    L4000-0360-14600-M 0.142 3.6 1.575 40 5.748 146 12.913 328 68.34 304 8.1 1.42 10.29 45.79
    L4000-0360-20000-M 0.142 3.6 1.575 40 7.874 200 19.37 492 68.34 304 5 0.88 10.29 45.79
    L4000-0360-27200-M 0.142 3.6 1.575 40 10.709 272 27.913 709 68.34 304 3.4 0.59 10.29 45.79
    L4445-0376-12700-M 0.148 3.76 1.75 44.45 5 127 8.9 226.06 64.33 286.15 15 2.63 5.79 25.75
    L4445-0376-13970-M 0.148 3.76 1.75 44.45 5.5 139.7 10.58 268.73 64.33 286.15 11.5 2.01 5.79 25.75
    L4445-0376-15240-M 0.148 3.76 1.75 44.45 6 152.4 12.26 311.4 64.33 286.15 9.4 1.646 5.79 25.75
    L4445-0376-16510-M 0.148 3.76 1.75 44.45 6.5 165.1 13.93 353.82 64.33 286.15 7.9 1.384 5.79 25.75
    L4445-0376-17780-M 0.148 3.76 1.75 44.45 7 177.8 15.61 396.49 64.33 286.15 6.8 1.191 5.79 25.75
    L4445-0376-19050-M 0.148 3.76 1.75 44.45 7.5 190.5 17.29 439.17 64.33 286.15 6 1.051 5.79 25.75
    L4445-0376-20320-M 0.148 3.76 1.75 44.45 8 203.2 18.97 481.84 64.33 286.15 5.3 0.928 5.79 25.75
    L4445-0376-22860-M 0.148 3.76 1.75 44.45 9 228.6 22.33 567.18 64.33 286.15 4.4 0.771 5.79 25.75
    L4445-0450-12700-M 0.177 4.5 1.75 44.45 5 127 7.62 193.55 105.51 469.33 36.6 6.41 9.5 42.26
    L4445-0450-13970-M 0.177 4.5 1.75 44.45 5.5 139.7 8.87 225.3 105.51 469.33 28.5 4.99 9.5 42.26
    L4445-0450-15240-M 0.177 4.5 1.75 44.45 6 152.4 10.12 257.05 105.51 469.33 23.3 4.08 9.5 42.26
    L4445-0450-16510-M 0.177 4.5 1.75 44.45 6.5 165.1 11.37 288.8 105.51 469.33 19.7 3.45 9.5 42.26
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