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Extension Springs

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Extension springs are helical coil springs designed to absorb energy while resisting pulling forces. The further they are stretched, the more force is generate, making them ideal for bringing two components together.

Common applications include Throttle Turn Mechanisms in Automotive, Trampolines, Fitness Equipment and Vibration Dampening Systems.

It is available in both Music Wire material, which is ideal for temperatures between -30 C and +120 C and for use in dry environments, and stainless Steel material, which is ideal for temperatures between -200 C and +250 C and for use in both dry and humid or wet environments. Key Factors to consider when choosing a spring for an application include Spring Material and the Working Environment, Spring Dimensions in both extended and non-extended states. Material: Stainless Steel, Carbon Steel Series Code:

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198 results
Product SKUs information
Essentra Part Number Price range Availability Loaded Length Spring Rate Initial Tension Overall Length Material Load at Load Length Outside Diameter View
R 39,6178 - R 47,9376 Request the lead time here
3.04 N
69.9 mm
Stainless Steel
33.57 N
10439128 R 28,712 - R 34,7416 Request the lead time here
0.85 N
50.8 mm
Carbon Steel
9.21 N
R 46,738 - R 56,553 Request the lead time here
6.30 N
76.2 mm
Stainless Steel
69.66 N
R 77,506 - R 84,2902 Request the lead time here
23.22 N
50.8 mm
Stainless Steel
258.22 N
R 28,712 - R 34,7416 Request the lead time here
2.22 N
57.2 mm
Carbon Steel
23.58 N
R 28,436 - R 34,4075 Request the lead time here
0.85 N
44.5 mm
Carbon Steel
9.21 N
R 85,553 - R 103,5191 Request the lead time here
23.22 N
127.0 mm
Stainless Steel
258.22 N
R 28,712 - R 34,7416 Request the lead time here
2.22 N
25.4 mm
Carbon Steel
23.58 N
R 31,9498 - R 38,6593 Request the lead time here
7.56 N
31.8 mm
Carbon Steel
83.63 N
R 28,712 - R 34,7416 Request the lead time here
2.22 N
63.5 mm
Carbon Steel
23.58 N
R 28,712 - R 34,7416 Request the lead time here
0.85 N
34.8 mm
Carbon Steel
9.21 N
R 28,712 - R 34,7416 Request the lead time here
2.22 N
19.1 mm
Carbon Steel
23.58 N
R 46,2886 - R 56,0093 Request the lead time here
6.30 N
69.9 mm
Stainless Steel
69.66 N
R 28,436 - R 34,4075 Request the lead time here
0.85 N
38.1 mm
Carbon Steel
9.21 N
R 28,436 - R 34,4075 Request the lead time here
2.22 N
50.8 mm
Carbon Steel
23.58 N
R 71,1599 - R 86,1034 Request the lead time here
10.28 N
63.5 mm
Stainless Steel
114.19 N
R 30,1785 - R 36,516 Request the lead time here
6.23 N
63.5 mm
Carbon Steel
70.28 N
R 28,712 - R 34,7416 Request the lead time here
2.22 N
22.4 mm
Carbon Steel
23.58 N
R 35,5633 - R 43,0316 Request the lead time here
1.78 N
127.0 mm
Carbon Steel
19.57 N
R 30,0302 - R 36,3366 Request the lead time here
1.78 N
34.8 mm
Carbon Steel
19.57 N
  • of 10
Extension Spring 10.6 mm 0.37 Nmm Stainless Steel

10439852

Price Range
R 47,9376 - R 39,6178

Stock Levels
Request the lead time here
Attributes
  • Initial Tension
    3.04 N
  • Load at Load Length
    33.57 N
  • Maximum Application Temperature
    260 °C
  • Overall Length
    69.9 mm
  • Material
    Stainless Steel
Extension Spring 6.1 mm 0.09 Nmm Carbon Steel

10439128

Price Range
R 34,7416 - R 28,712

Stock Levels
Request the lead time here
Attributes
  • Initial Tension
    0.85 N
  • Load at Load Length
    9.21 N
  • Maximum Application Temperature
    121 °C
  • Overall Length
    50.8 mm
  • Material
    Carbon Steel
Extension Spring 12.7 mm 1.18 Nmm Stainless Steel

10440100

Price Range
R 56,553 - R 46,738

Stock Levels
Request the lead time here
Attributes
  • Initial Tension
    6.30 N
  • Load at Load Length
    69.66 N
  • Maximum Application Temperature
    260 °C
  • Overall Length
    76.2 mm
  • Material
    Stainless Steel
Extension Spring 19.1 mm 22.04 Nmm Stainless Steel

10641910

Price Range
R 84,2902 - R 77,506

Stock Levels
Request the lead time here
Attributes
  • Initial Tension
    23.22 N
  • Load at Load Length
    258.22 N
  • Maximum Application Temperature
    230 °C
  • Overall Length
    50.8 mm
  • Material
    Stainless Steel
Extension Spring 6.1 mm 0.44 Nmm Carbon Steel

10439203

Price Range
R 34,7416 - R 28,712

Stock Levels
Request the lead time here
Attributes
  • Initial Tension
    2.22 N
  • Load at Load Length
    23.58 N
  • Maximum Application Temperature
    121 °C
  • Overall Length
    57.2 mm
  • Material
    Carbon Steel
Extension Spring 6.1 mm 0.11 Nmm Carbon Steel

10645284

Price Range
R 34,4075 - R 28,436

Stock Levels
Request the lead time here
Attributes
  • Initial Tension
    0.85 N
  • Load at Load Length
    9.21 N
  • Maximum Application Temperature
    121 °C
  • Overall Length
    44.5 mm
  • Material
    Carbon Steel
Extension Spring 19.1 mm 4.41 Nmm Stainless Steel

10642016

Price Range
R 103,5191 - R 85,553

Stock Levels
Request the lead time here
Attributes
  • Initial Tension
    23.22 N
  • Load at Load Length
    258.22 N
  • Maximum Application Temperature
    230 °C
  • Overall Length
    127.0 mm
  • Material
    Stainless Steel
Extension Spring 6.1 mm 1.31 Nmm Carbon Steel

10416389

Price Range
R 34,7416 - R 28,712

Stock Levels
Request the lead time here
Attributes
  • Initial Tension
    2.22 N
  • Load at Load Length
    23.58 N
  • Maximum Application Temperature
    121 °C
  • Overall Length
    25.4 mm
  • Material
    Carbon Steel
Extension Spring 12.7 mm 8.21 Nmm Carbon Steel

10439463

Price Range
R 38,6593 - R 31,9498

Stock Levels
Request the lead time here
Attributes
  • Initial Tension
    7.56 N
  • Load at Load Length
    83.63 N
  • Maximum Application Temperature
    121 °C
  • Overall Length
    31.8 mm
  • Material
    Carbon Steel
Extension Spring 6.1 mm 0.39 Nmm Carbon Steel

10439210

Price Range
R 34,7416 - R 28,712

Stock Levels
Request the lead time here
Attributes
  • Initial Tension
    2.22 N
  • Load at Load Length
    23.58 N
  • Maximum Application Temperature
    121 °C
  • Overall Length
    63.5 mm
  • Material
    Carbon Steel
Extension Spring 6.1 mm 0.14 Nmm Carbon Steel

10439104

Price Range
R 34,7416 - R 28,712

Stock Levels
Request the lead time here
Attributes
  • Initial Tension
    0.85 N
  • Load at Load Length
    9.21 N
  • Maximum Application Temperature
    121 °C
  • Overall Length
    34.8 mm
  • Material
    Carbon Steel
Extension Spring 6.1 mm 2.42 Nmm Carbon Steel

10439166

Price Range
R 34,7416 - R 28,712

Stock Levels
Request the lead time here
Attributes
  • Initial Tension
    2.22 N
  • Load at Load Length
    23.58 N
  • Maximum Application Temperature
    121 °C
  • Overall Length
    19.1 mm
  • Material
    Carbon Steel
Extension Spring 12.7 mm 1.34 Nmm Stainless Steel

10440094

Price Range
R 56,0093 - R 46,2886

Stock Levels
Request the lead time here
Attributes
  • Initial Tension
    6.30 N
  • Load at Load Length
    69.66 N
  • Maximum Application Temperature
    260 °C
  • Overall Length
    69.9 mm
  • Material
    Stainless Steel
Extension Spring 6.1 mm 0.12 Nmm Carbon Steel

10439111

Price Range
R 34,4075 - R 28,436

Stock Levels
Request the lead time here
Attributes
  • Initial Tension
    0.85 N
  • Load at Load Length
    9.21 N
  • Maximum Application Temperature
    121 °C
  • Overall Length
    38.1 mm
  • Material
    Carbon Steel
Extension Spring 6.1 mm 0.51 Nmm Carbon Steel

10439197

Price Range
R 34,4075 - R 28,436

Stock Levels
Request the lead time here
Attributes
  • Initial Tension
    2.22 N
  • Load at Load Length
    23.58 N
  • Maximum Application Temperature
    121 °C
  • Overall Length
    50.8 mm
  • Material
    Carbon Steel
Extension Spring 19.1 mm 2.77 Nmm Stainless Steel

10638132

Price Range
R 86,1034 - R 71,1599

Stock Levels
Request the lead time here
Attributes
  • Initial Tension
    10.28 N
  • Load at Load Length
    114.19 N
  • Maximum Application Temperature
    230 °C
  • Overall Length
    63.5 mm
  • Material
    Stainless Steel
Extension Spring 10.6 mm 1.47 Nmm Carbon Steel

10421598

Price Range
R 36,516 - R 30,1785

Stock Levels
Request the lead time here
Attributes
  • Initial Tension
    6.23 N
  • Load at Load Length
    70.28 N
  • Maximum Application Temperature
    121 °C
  • Overall Length
    63.5 mm
  • Material
    Carbon Steel
Extension Spring 6.1 mm 1.73 Nmm Carbon Steel

10439173

Price Range
R 34,7416 - R 28,712

Stock Levels
Request the lead time here
Attributes
  • Initial Tension
    2.22 N
  • Load at Load Length
    23.58 N
  • Maximum Application Temperature
    121 °C
  • Overall Length
    22.4 mm
  • Material
    Carbon Steel
Extension Spring 12.7 mm 0.04 Nmm Carbon Steel

10439456

Price Range
R 43,0316 - R 35,5633

Stock Levels
Request the lead time here
Attributes
  • Initial Tension
    1.78 N
  • Load at Load Length
    19.57 N
  • Maximum Application Temperature
    121 °C
  • Overall Length
    127.0 mm
  • Material
    Carbon Steel
Extension Spring 12.7 mm 0.37 Nmm Carbon Steel

10439388

Price Range
R 36,3366 - R 30,0302

Stock Levels
Request the lead time here
Attributes
  • Initial Tension
    1.78 N
  • Load at Load Length
    19.57 N
  • Maximum Application Temperature
    121 °C
  • Overall Length
    34.8 mm
  • Material
    Carbon Steel