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Extension Springs

In production

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 29,8883 - R 36,1648 Request the lead time here
6.23 N
57.2 mm
Carbon Steel
70.28 N
R 30,3218 - R 36,6894 Request the lead time here
1.78 N
31.8 mm
Carbon Steel
19.57 N
R 30,3218 - R 36,6894 Request the lead time here
1.78 N
50.8 mm
Carbon Steel
19.57 N
R 30,3218 - R 36,6894 Request the lead time here
1.78 N
76.2 mm
Carbon Steel
19.57 N
R 35,5633 - R 43,0316 Request the lead time here
1.78 N
127.0 mm
Carbon Steel
19.57 N
R 34,2015 - R 41,3838 Request the lead time here
1.85 N
28.5 mm
Stainless Steel
19.64 N
R 33,8726 - R 40,9859 Request the lead time here
1.85 N
44.5 mm
Stainless Steel
19.64 N
R 28,436 - R 34,4075 Request the lead time here
0.85 N
22.4 mm
Carbon Steel
9.21 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
0.85 N
57.2 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 28,712 - R 34,7416 Request the lead time here
2.22 N
25.4 mm
Carbon Steel
23.58 N
R 28,712 - R 34,7416 Request the lead time here
2.22 N
38.1 mm
Carbon Steel
23.58 N
R 28,712 - R 34,7416 Request the lead time here
2.22 N
63.5 mm
Carbon Steel
23.58 N
R 37,5671 - R 45,4561 Request the lead time here
2.22 N
101.6 mm
Carbon Steel
23.58 N
R 29,8883 - R 36,1648 Request the lead time here
3.65 N
28.5 mm
Carbon Steel
40.30 N
R 30,1785 - R 36,516 Request the lead time here
3.65 N
44.5 mm
Carbon Steel
40.30 N
R 30,1785 - R 36,516 Request the lead time here
3.65 N
69.9 mm
Carbon Steel
40.30 N
R 30,1785 - R 36,516 Request the lead time here
6.23 N
31.8 mm
Carbon Steel
70.28 N
R 29,8883 - R 36,1648 Request the lead time here
6.23 N
50.8 mm
Carbon Steel
70.28 N
  • of 10
Extension Spring 10.6 mm 1.72 Nmm Carbon Steel

10439357

Price Range
R 36,1648 - R 29,8883

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
    57.2 mm
  • Material
    Carbon Steel
Extension Spring 12.7 mm 0.49 Nmm Carbon Steel

10439371

Price Range
R 36,6894 - R 30,3218

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
    31.8 mm
  • Material
    Carbon Steel
Extension Spring 12.7 mm 0.18 Nmm Carbon Steel

10439418

Price Range
R 36,6894 - R 30,3218

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
    50.8 mm
  • Material
    Carbon Steel
Extension Spring 12.7 mm 0.09 Nmm Carbon Steel

10439449

Price Range
R 36,6894 - R 30,3218

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
    76.2 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 6.1 mm 0.95 Nmm Stainless Steel

10234587

Price Range
R 41,3838 - R 34,2015

Stock Levels
Request the lead time here
Attributes
  • Initial Tension
    1.85 N
  • Load at Load Length
    19.64 N
  • Maximum Application Temperature
    260 °C
  • Overall Length
    28.5 mm
  • Material
    Stainless Steel
Extension Spring 6.1 mm 0.50 Nmm Stainless Steel

10439739

Price Range
R 40,9859 - R 33,8726

Stock Levels
Request the lead time here
Attributes
  • Initial Tension
    1.85 N
  • Load at Load Length
    19.64 N
  • Maximum Application Temperature
    260 °C
  • Overall Length
    44.5 mm
  • Material
    Stainless Steel
Extension Spring 6.1 mm 0.30 Nmm Carbon Steel

10234488

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
    22.4 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 0.07 Nmm Carbon Steel

10439135

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
    57.2 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 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 6.1 mm 0.74 Nmm Carbon Steel

10439180

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
    38.1 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 0.23 Nmm Carbon Steel

10439258

Price Range
R 45,4561 - R 37,5671

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
    101.6 mm
  • Material
    Carbon Steel
Extension Spring 10.6 mm 2.52 Nmm Carbon Steel

10413906

Price Range
R 36,1648 - R 29,8883

Stock Levels
Request the lead time here
Attributes
  • Initial Tension
    3.65 N
  • Load at Load Length
    40.30 N
  • Maximum Application Temperature
    121 °C
  • Overall Length
    28.5 mm
  • Material
    Carbon Steel
Extension Spring 10.6 mm 0.89 Nmm Carbon Steel

10418970

Price Range
R 36,516 - R 30,1785

Stock Levels
Request the lead time here
Attributes
  • Initial Tension
    3.65 N
  • Load at Load Length
    40.30 N
  • Maximum Application Temperature
    121 °C
  • Overall Length
    44.5 mm
  • Material
    Carbon Steel
Extension Spring 10.6 mm 0.44 Nmm Carbon Steel

10439326

Price Range
R 36,516 - R 30,1785

Stock Levels
Request the lead time here
Attributes
  • Initial Tension
    3.65 N
  • Load at Load Length
    40.30 N
  • Maximum Application Temperature
    121 °C
  • Overall Length
    69.9 mm
  • Material
    Carbon Steel
Extension Spring 10.6 mm 5.08 Nmm Carbon Steel

10439333

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
    31.8 mm
  • Material
    Carbon Steel
Extension Spring 10.6 mm 2.07 Nmm Carbon Steel

10439340

Price Range
R 36,1648 - R 29,8883

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
    50.8 mm
  • Material
    Carbon Steel