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Tension Springs - Configurable Lengths (Part Numbers)

Tension Springs - Configurable Lengths
  • Spec Expansion

•Type: Standard Type
For complete product overview and details on Tension Springs - Configurable Lengths see the sections below:

  • inCAD Components

(i)Caution

  • Please check the content on our website as the PDF does not contain the most up-to-date information.
Extension Springs - Configurable Lengths:Related Image
Type [ M ]Material
WFSP Spring Steel (ASTM A228)
UFSP 304 Stainless Steel
Type [ M ]Material
BWFSP Spring Steel (ASTM A228)
BUFSP 304 Stainless Steel

Specifications

Part Number-d-S
WFSP3
UFSP20
-
-
0.3
2.6
-
-
10
498
[ ! ]Maximum deflection factor is a numerical value for static loads.
    When applying a dynamic load, use the maximum deflection factor × 0.65.
[ ! ]For the maximum deflection, the Web specifications show a percentage, and the catalog PDF shows the value when the S dimension is 50.
Both values give the same result when used.
[ ! ]For the standard spring constant, the Web specifications show a value where the S dimension is 10,and the catalog PDF shows the value when the S dimension is 50.
Part NumberWire
Dia.
d mm
S 1mm IncrementMaximum deflection factor (S)
Standard Spring Constant
(When S = 10)
N/mm
Initial Tension
N
TypeDWFSPUFSPWFSPUFSPWFSPUFSP
BWFSPBUFSPBWFSPBUFSPBWFSPBUFSP
WFSP
UFSP
BWFSP
BUFSP
30.310〜300176%174%0.130.110.180.21
0.482%84%0.600.500.530.64
40.4172%174%0.200.200.310.38
0.596%92%0.750.650.770.92
50.510〜500168%164%0.350.300.490.59
0.6100%102%0.900.801.011.21
60.6158%164%0.500.450.710.85
0.872%72%2.352.052.132.55
70.7140%132%0.650.600.961.15
0.970%64%2.602.252.943.5
80.8148%152%0.900.801.261.51
182%84%2.902.553.044.26
9110〜550112%114%1.951.702.453.43
1.266%66%5.254.654.416.17
101148%140%1.351.201.962.74
1.288%86%3.653.254.316.03
1.458%56%8.507.507.6410.7
111160%152%1.000.851.452.01
1.292%90%2.652.353.244.51
1.462%60%6.205.406.398.87
121232%226%0.750.651.181.65
1.2142%140%1.951.752.843.98
1.492%92%4.554.005.397.55
1.662%60%9.408.308.7212.21
131240%234%0.550.500.931.29
1.2144%142%1.551.352.173.01
1.494%94%3.503.053.955.49
1.664%62%7.106.207.7510.76
141.2208%192%1.201.052.062.88
1.4138%130%2.702.403.825.35
1.694%90%5.554.906.669.32
1.868%66%10.509.3010.614.84
151.2212%196%0.950.851.52.09
1.4140%132%2.151.903.034.21
1.696%92%4.403.804.746.59
1.870%68%8.457.359.2512.85
161.4192%182%1.751.553.044.26
1.6132%130%3.553.155.17.14
1.896%94%6.655.908.3311.66
268%70%11.8510.5012.617.64
171.4194%184%1.451.252.213.08
1.6134%132%2.902.504.035.6
1.898%96%5.554.856.749.37
270%72%9.908.6510.915.13
181.6176%174%2.402.104.025.63
1.8128%128%4.504.006.479.06
294%96%7.957.001014
2.362%60%17.0015.0518.726.18
201.8168%156%3.152.805.17.14
2122%120%5.554.957.9411.12
2.382%80%11.8510.5015.221.28
2.658%58%23.2020.5023.633.04
222150%148%4.053.607.3510.3
2.3106%104%8.607.6011.816.5
2.674%74%16.7514.8019.627.4
2.954%54%30.4526.9533.346.6
252.3144%144%5.604.959.813.7
2.6100%104%10.859.6015.722
2.976%72%19.6517.4022.531.5
3.256%54%33.7529.8534.348
282.6138%128%7.456.6012.717.8
2.9102%98%13.4511.9017.624.6
3.278%74%22.9020.2527.438.4
3.562%58%37.4533.1039.254.9
 
■Accuracy Standards
· D Dimension Tolerance
D/d*1Tolerance
8 or Less±1.5% of D dimension (Min. ±0.2mm)
8~20±2% of D dimension (Min. ±0.3mm)
 *1 D/d = Spring Index
· S Dimension Tolerance
When d≤0.5, ±2x Wire Dia.
(Ex: When d=0.3, ±0.6)
When d≥0.6, ±Wire Dia.
(Ex: When d=1.0, ±1.0)
 
• Calculate the maximum deflection and spring constant using the following formula.
• Maximum deflection
   Maximum deflection (mm) = S × maximum deflection factor (%)
• Spring constant(reference value)
   Spring constant (N/mm) = reference spring constant × 10/S

Example) Calculation of maximum deflection and spring constant of UFSP20-2.6-498
   Maximum deflection(mm) = 498×58% = 288.84Spring constant(N/mm) = 20.50 ×10= 0.41
498
[ ! ]For the maximum deflection, the Web specifications show a percentage, and the catalog PDF shows the value when the S dimension is 50.
Both values give the same result when used.
[ ! ]For the standard spring constant, the Web specifications show a value where the S dimension is 10,and the catalog PDF shows the value when the S dimension is 50.

Part Number 

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Part Number
BUFSP3-0.3-[10-300/1]
BUFSP3-0.4-[10-300/1]
BUFSP4-0.4-[10-300/1]
BUFSP4-0.5-[10-300/1]
BUFSP5-0.5-[10-500/1]
BUFSP5-0.6-[10-500/1]
BUFSP6-0.6-[10-500/1]
BUFSP6-0.8-[10-500/1]
BUFSP7-0.7-[10-550/1]
BUFSP7-0.9-[10-550/1]
BUFSP8-0.8-[10-500/1]
BUFSP8-1.0-[10-500/1]
BUFSP9-1.0-[10-550/1]
BUFSP9-1.2-[10-550/1]
BUFSP10-1.0-[10-550/1]
BUFSP10-1.2-[10-550/1]
BUFSP10-1.4-[10-550/1]
BUFSP11-1.0-[10-550/1]
BUFSP11-1.2-[10-550/1]
BUFSP11-1.4-[10-550/1]
BUFSP12-1.0-[10-550/1]
BUFSP12-1.2-[10-550/1]
BUFSP12-1.4-[10-550/1]
BUFSP12-1.6-[10-550/1]
BUFSP13-1.0-[10-550/1]
BUFSP13-1.2-[10-550/1]
BUFSP13-1.4-[10-550/1]
BUFSP13-1.6-[10-550/1]
BUFSP14-1.2-[10-550/1]
BUFSP14-1.4-[10-550/1]
BUFSP14-1.6-[10-550/1]
BUFSP14-1.8-[10-550/1]
BUFSP15-1.2-[10-550/1]
BUFSP15-1.4-[10-550/1]
BUFSP15-1.6-[10-550/1]
BUFSP15-1.8-[10-550/1]
BUFSP16-1.4-[10-550/1]
BUFSP16-1.6-[10-550/1]
BUFSP16-1.8-[10-550/1]
BUFSP16-2.0-[10-550/1]
BUFSP17-1.4-[10-550/1]
BUFSP17-1.6-[10-550/1]
BUFSP17-1.8-[10-550/1]
BUFSP17-2.0-[10-550/1]
BUFSP18-1.6-[10-550/1]
BUFSP18-1.8-[10-550/1]
BUFSP18-2.0-[10-550/1]
BUFSP18-2.3-[10-550/1]
BUFSP20-1.8-[10-550/1]
BUFSP20-2.0-[10-550/1]
BUFSP20-2.3-[10-550/1]
BUFSP20-2.6-[10-550/1]
BUFSP22-2.0-[10-550/1]
BUFSP22-2.3-[10-550/1]
BUFSP22-2.6-[10-550/1]
BUFSP22-2.9-[10-550/1]
BUFSP25-2.3-[10-550/1]
BUFSP25-2.6-[10-550/1]
BUFSP25-2.9-[10-550/1]
BUFSP25-3.2-[10-550/1]
BUFSP28-2.6-[10-550/1]
BUFSP28-2.9-[10-550/1]
BUFSP28-3.2-[10-550/1]
BUFSP28-3.5-[10-550/1]
BWFSP3-0.3-[10-300/1]
BWFSP3-0.4-[10-300/1]
BWFSP4-0.4-[10-300/1]
BWFSP4-0.5-[10-300/1]
BWFSP5-0.5-[10-500/1]
BWFSP5-0.6-[10-500/1]
BWFSP6-0.6-[10-500/1]
BWFSP6-0.8-[10-500/1]
BWFSP7-0.7-[10-550/1]
BWFSP7-0.9-[10-550/1]
BWFSP8-0.8-[10-500/1]
BWFSP8-1.0-[10-500/1]
BWFSP9-1.0-[10-550/1]
BWFSP9-1.2-[10-550/1]
BWFSP10-1.0-[10-550/1]
BWFSP10-1.2-[10-550/1]
BWFSP10-1.4-[10-550/1]
BWFSP11-1.0-[10-550/1]
BWFSP11-1.2-[10-550/1]
BWFSP11-1.4-[10-550/1]
BWFSP12-1.0-[10-550/1]
BWFSP12-1.2-[10-550/1]
BWFSP12-1.4-[10-550/1]
BWFSP12-1.6-[10-550/1]
BWFSP13-1.0-[10-550/1]
BWFSP13-1.2-[10-550/1]
Part NumberMinimum order quantityVolume DiscountDays to Ship RoHSMaterial Hook Opposing Angle O.D. D
(Ø)
Initial Tension
(N)
Standard Spring Constant
(N/mm)
Wire diameter
(Ø)
S
(mm)
1 Piece(s)

10 Days or more

10Stainless Steel (SUS304-WPB)90°30.210.110.310 ~ 300
1 Piece(s)

10 Days or more

10Stainless Steel (SUS304-WPB)90°30.640.50.410 ~ 300
1 Piece(s)

10 Days or more

10Stainless Steel (SUS304-WPB)90°40.380.20.410 ~ 300
1 Piece(s)

10 Days or more

10Stainless Steel (SUS304-WPB)90°40.920.650.510 ~ 300
1 Piece(s)

10 Days or more

10Stainless Steel (SUS304-WPB)90°50.590.30.510 ~ 500
1 Piece(s)

10 Days or more

10Stainless Steel (SUS304-WPB)90°51.210.80.610 ~ 500
1 Piece(s)

10 Days or more

10Stainless Steel (SUS304-WPB)90°60.850.450.610 ~ 500
1 Piece(s)

10 Days or more

10Stainless Steel (SUS304-WPB)90°62.552.050.810 ~ 500
1 Piece(s)

10 Days or more

10Stainless Steel (SUS304-WPB)90°71.150.60.710 ~ 550
1 Piece(s)

10 Days or more

10Stainless Steel (SUS304-WPB)90°73.502.250.910 ~ 550
1 Piece(s)

10 Days or more

10Stainless Steel (SUS304-WPB)90°81.510.80.810 ~ 500
1 Piece(s)

10 Days or more

10Stainless Steel (SUS304-WPB)90°84.262.55110 ~ 500
1 Piece(s)

10 Days or more

10Stainless Steel (SUS304-WPB)90°93.431.7110 ~ 550
1 Piece(s)

10 Days or more

10Stainless Steel (SUS304-WPB)90°96.174.651.210 ~ 550
1 Piece(s)

10 Days or more

10Stainless Steel (SUS304-WPB)90°102.741.2110 ~ 550
1 Piece(s)

10 Days or more

10Stainless Steel (SUS304-WPB)90°106.033.251.210 ~ 550
1 Piece(s)

10 Days or more

10Stainless Steel (SUS304-WPB)90°1010.707.51.410 ~ 550
1 Piece(s)

10 Days or more

10Stainless Steel (SUS304-WPB)90°112.010.85110 ~ 550
1 Piece(s)

10 Days or more

10Stainless Steel (SUS304-WPB)90°114.512.351.210 ~ 550
1 Piece(s)

10 Days or more

10Stainless Steel (SUS304-WPB)90°118.875.41.410 ~ 550
1 Piece(s)

10 Days or more

10Stainless Steel (SUS304-WPB)90°121.650.65110 ~ 550
1 Piece(s)

10 Days or more

10Stainless Steel (SUS304-WPB)90°123.981.751.210 ~ 550
1 Piece(s)

10 Days or more

10Stainless Steel (SUS304-WPB)90°127.5541.410 ~ 550
1 Piece(s)

10 Days or more

10Stainless Steel (SUS304-WPB)90°1212.218.31.610 ~ 550
1 Piece(s)

10 Days or more

10Stainless Steel (SUS304-WPB)90°131.290.5110 ~ 550
1 Piece(s)

10 Days or more

10Stainless Steel (SUS304-WPB)90°133.011.351.210 ~ 550
1 Piece(s)

10 Days or more

10Stainless Steel (SUS304-WPB)90°135.493.051.410 ~ 550
1 Piece(s)

10 Days or more

10Stainless Steel (SUS304-WPB)90°1310.766.21.610 ~ 550
1 Piece(s)

10 Days or more

10Stainless Steel (SUS304-WPB)90°142.881.051.210 ~ 550
1 Piece(s)

10 Days or more

10Stainless Steel (SUS304-WPB)90°145.352.41.410 ~ 550
1 Piece(s)

10 Days or more

10Stainless Steel (SUS304-WPB)90°149.324.91.610 ~ 550
1 Piece(s)

10 Days or more

10Stainless Steel (SUS304-WPB)90°1414.849.31.810 ~ 550
1 Piece(s)

10 Days or more

10Stainless Steel (SUS304-WPB)90°152.090.851.210 ~ 550
1 Piece(s)

10 Days or more

10Stainless Steel (SUS304-WPB)90°154.211.91.410 ~ 550
1 Piece(s)

10 Days or more

10Stainless Steel (SUS304-WPB)90°156.593.81.610 ~ 550
1 Piece(s)

10 Days or more

10Stainless Steel (SUS304-WPB)90°1512.857.351.810 ~ 550
1 Piece(s)

10 Days or more

10Stainless Steel (SUS304-WPB)90°164.261.551.410 ~ 550
1 Piece(s)

10 Days or more

10Stainless Steel (SUS304-WPB)90°167.143.151.610 ~ 550
1 Piece(s)

10 Days or more

10Stainless Steel (SUS304-WPB)90°1611.665.91.810 ~ 550
1 Piece(s)

10 Days or more

10Stainless Steel (SUS304-WPB)90°1617.6410.5210 ~ 550
1 Piece(s)

10 Days or more

10Stainless Steel (SUS304-WPB)90°173.081.251.410 ~ 550
1 Piece(s)

10 Days or more

10Stainless Steel (SUS304-WPB)90°175.602.51.610 ~ 550
1 Piece(s)

10 Days or more

10Stainless Steel (SUS304-WPB)90°179.374.851.810 ~ 550
1 Piece(s)

10 Days or more

10Stainless Steel (SUS304-WPB)90°1715.138.65210 ~ 550
1 Piece(s)

10 Days or more

10Stainless Steel (SUS304-WPB)90°185.632.11.610 ~ 550
1 Piece(s)

10 Days or more

10Stainless Steel (SUS304-WPB)90°189.0641.810 ~ 550
1 Piece(s)

10 Days or more

10Stainless Steel (SUS304-WPB)90°18147210 ~ 550
1 Piece(s)

10 Days or more

10Stainless Steel (SUS304-WPB)90°1826.1815.052.310 ~ 550
1 Piece(s)

10 Days or more

10Stainless Steel (SUS304-WPB)90°207.142.81.810 ~ 550
1 Piece(s)

10 Days or more

10Stainless Steel (SUS304-WPB)90°2011.124.95210 ~ 550
1 Piece(s)

10 Days or more

10Stainless Steel (SUS304-WPB)90°2021.2810.52.310 ~ 550
1 Piece(s)

10 Days or more

10Stainless Steel (SUS304-WPB)90°2033.0420.52.610 ~ 550
1 Piece(s)

10 Days or more

10Stainless Steel (SUS304-WPB)90°2210.33.6210 ~ 550
1 Piece(s)

10 Days or more

10Stainless Steel (SUS304-WPB)90°2216.57.62.310 ~ 550
1 Piece(s)

10 Days or more

10Stainless Steel (SUS304-WPB)90°2227.414.82.610 ~ 550
1 Piece(s)

10 Days or more

10Stainless Steel (SUS304-WPB)90°2246.626.952.910 ~ 550
1 Piece(s)

10 Days or more

10Stainless Steel (SUS304-WPB)90°2513.704.952.310 ~ 550
1 Piece(s)

10 Days or more

10Stainless Steel (SUS304-WPB)90°2522.009.62.610 ~ 550
1 Piece(s)

10 Days or more

10Stainless Steel (SUS304-WPB)90°2531.5017.42.910 ~ 550
1 Piece(s)

10 Days or more

10Stainless Steel (SUS304-WPB)90°2548.0029.853.210 ~ 550
1 Piece(s)

10 Days or more

10Stainless Steel (SUS304-WPB)90°2817.806.62.610 ~ 550
1 Piece(s)

10 Days or more

10Stainless Steel (SUS304-WPB)90°2824.611.92.910 ~ 550
1 Piece(s)

10 Days or more

10Stainless Steel (SUS304-WPB)90°2838.4020.253.210 ~ 550
1 Piece(s)

10 Days or more

10Stainless Steel (SUS304-WPB)90°2854.9033.13.510 ~ 550
1 Piece(s)

10 Days or more

10SWP-A90°30.180.130.310 ~ 300
1 Piece(s)

10 Days or more

10SWP-A90°30.530.60.410 ~ 300
1 Piece(s)

10 Days or more

10SWP-A90°40.310.20.410 ~ 300
1 Piece(s)

10 Days or more

10SWP-A90°40.770.750.510 ~ 300
1 Piece(s)

10 Days or more

10SWP-A90°50.490.350.510 ~ 500
1 Piece(s)

10 Days or more

10SWP-A90°51.010.90.610 ~ 500
1 Piece(s)

10 Days or more

10SWP-A90°60.710.50.610 ~ 500
1 Piece(s)

10 Days or more

10SWP-A90°62.132.350.810 ~ 500
1 Piece(s)

10 Days or more

10SWP-A90°70.960.650.710 ~ 550
1 Piece(s)

10 Days or more

10SWP-A90°72.942.60.910 ~ 550
1 Piece(s)

10 Days or more

10SWP-A90°81.260.90.810 ~ 500
1 Piece(s)

10 Days or more

10SWP-A90°83.042.9110 ~ 500
1 Piece(s)

10 Days or more

10SWP-A90°92.451.95110 ~ 550
1 Piece(s)

10 Days or more

10SWP-A90°94.415.251.210 ~ 550
1 Piece(s)

10 Days or more

10SWP-A90°101.961.35110 ~ 550
1 Piece(s)

10 Days or more

10SWP-A90°104.313.651.210 ~ 550
1 Piece(s)

10 Days or more

10SWP-A90°107.648.51.410 ~ 550
1 Piece(s)

10 Days or more

10SWP-A90°111.451110 ~ 550
1 Piece(s)

10 Days or more

10SWP-A90°113.242.651.210 ~ 550
1 Piece(s)

10 Days or more

10SWP-A90°116.396.21.410 ~ 550
1 Piece(s)

10 Days or more

10SWP-A90°121.180.75110 ~ 550
1 Piece(s)

10 Days or more

10SWP-A90°122.841.951.210 ~ 550
1 Piece(s)

10 Days or more

10SWP-A90°125.394.551.410 ~ 550
1 Piece(s)

10 Days or more

10SWP-A90°128.729.41.610 ~ 550
1 Piece(s)

10 Days or more

10SWP-A90°130.930.55110 ~ 550
1 Piece(s)

10 Days or more

10SWP-A90°132.171.551.210 ~ 550

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