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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 34,2015 - R 41,3838 Request the lead time here
0.71 N
25.4 mm
Stainless Steel
7.67 N
R 34,2015 - R 41,3838 Request the lead time here
0.71 N
38.1 mm
Stainless Steel
7.67 N
R 34,2015 - R 41,3838 Request the lead time here
0.71 N
63.5 mm
Stainless Steel
7.67 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 39,6178 - R 47,9376 Request the lead time here
3.04 N
28.5 mm
Stainless Steel
33.57 N
R 39,6178 - R 47,9376 Request the lead time here
3.04 N
44.5 mm
Stainless Steel
33.57 N
R 39,6178 - R 47,9376 Request the lead time here
3.04 N
69.9 mm
Stainless Steel
33.57 N
R 34,7227 - R 42,0145 Request the lead time here
7.56 N
69.9 mm
Carbon Steel
83.63 N
R 39,2369 - R 47,4766 Request the lead time here
5.19 N
50.8 mm
Stainless Steel
58.54 N
R 39,6178 - R 47,9376 Request the lead time here
5.19 N
76.2 mm
Stainless Steel
58.54 N
R 49,2564 - R 59,6003 Request the lead time here
12.32 N
63.5 mm
Carbon Steel
137.09 N
R 41,341 - R 50,0226 Request the lead time here
1.85 N
88.9 mm
Stainless Steel
19.64 N
R 39,2369 - R 47,4766 Request the lead time here
5.19 N
31.8 mm
Stainless Steel
58.54 N
R 39,6178 - R 47,9376 Request the lead time here
3.04 N
38.1 mm
Stainless Steel
33.57 N
R 39,6178 - R 47,9376 Request the lead time here
3.04 N
63.5 mm
Stainless Steel
33.57 N
R 31,9498 - R 38,6593 Request the lead time here
7.56 N
38.1 mm
Carbon Steel
83.63 N
R 34,7227 - R 42,0145 Request the lead time here
7.56 N
63.5 mm
Carbon Steel
83.63 N
R 36,2133 - R 43,8181 Request the lead time here
7.56 N
101.6 mm
Carbon Steel
83.63 N
R 49,2564 - R 59,6003 Request the lead time here
12.32 N
57.2 mm
Carbon Steel
137.09 N
  • of 10
Extension Spring 6.1 mm 0.19 Nmm Stainless Steel

10234556

Price Range
R 41,3838 - R 34,2015

Stock Levels
Request the lead time here
Attributes
  • Initial Tension
    0.71 N
  • Load at Load Length
    7.67 N
  • Maximum Application Temperature
    260 °C
  • Overall Length
    25.4 mm
  • Material
    Stainless Steel
Extension Spring 6.1 mm 0.10 Nmm Stainless Steel

10439678

Price Range
R 41,3838 - R 34,2015

Stock Levels
Request the lead time here
Attributes
  • Initial Tension
    0.71 N
  • Load at Load Length
    7.67 N
  • Maximum Application Temperature
    260 °C
  • Overall Length
    38.1 mm
  • Material
    Stainless Steel
Extension Spring 6.1 mm 0.04 Nmm Stainless Steel

10439685

Price Range
R 41,3838 - R 34,2015

Stock Levels
Request the lead time here
Attributes
  • Initial Tension
    0.71 N
  • Load at Load Length
    7.67 N
  • Maximum Application Temperature
    260 °C
  • Overall Length
    63.5 mm
  • Material
    Stainless 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 2.10 Nmm Stainless Steel

10424841

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
    28.5 mm
  • Material
    Stainless Steel
Extension Spring 10.6 mm 0.74 Nmm Stainless Steel

10416211

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
    44.5 mm
  • Material
    Stainless Steel
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 12.7 mm 1.61 Nmm Carbon Steel

10439517

Price Range
R 42,0145 - R 34,7227

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
    69.9 mm
  • Material
    Carbon Steel
Extension Spring 10.6 mm 1.72 Nmm Stainless Steel

10439913

Price Range
R 47,4766 - R 39,2369

Stock Levels
Request the lead time here
Attributes
  • Initial Tension
    5.19 N
  • Load at Load Length
    58.54 N
  • Maximum Application Temperature
    260 °C
  • Overall Length
    50.8 mm
  • Material
    Stainless Steel
Extension Spring 10.6 mm 0.96 Nmm Stainless Steel

10439920

Price Range
R 47,9376 - R 39,6178

Stock Levels
Request the lead time here
Attributes
  • Initial Tension
    5.19 N
  • Load at Load Length
    58.54 N
  • Maximum Application Temperature
    260 °C
  • Overall Length
    76.2 mm
  • Material
    Stainless Steel
Extension Spring 19.1 mm 3.33 Nmm Carbon Steel

10414712

Price Range
R 59,6003 - R 49,2564

Stock Levels
Request the lead time here
Attributes
  • Initial Tension
    12.32 N
  • Load at Load Length
    137.09 N
  • Maximum Application Temperature
    121 °C
  • Overall Length
    63.5 mm
  • Material
    Carbon Steel
Extension Spring 6.1 mm 0.22 Nmm Stainless Steel

10439784

Price Range
R 50,0226 - R 41,341

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
    88.9 mm
  • Material
    Stainless Steel
Extension Spring 10.6 mm 4.23 Nmm Stainless Steel

10439876

Price Range
R 47,4766 - R 39,2369

Stock Levels
Request the lead time here
Attributes
  • Initial Tension
    5.19 N
  • Load at Load Length
    58.54 N
  • Maximum Application Temperature
    260 °C
  • Overall Length
    31.8 mm
  • Material
    Stainless Steel
Extension Spring 10.6 mm 1.01 Nmm Stainless Steel

10421154

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
    38.1 mm
  • Material
    Stainless Steel
Extension Spring 10.6 mm 0.42 Nmm Stainless Steel

10439845

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
    63.5 mm
  • Material
    Stainless Steel
Extension Spring 12.7 mm 4.47 Nmm Carbon Steel

10439487

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
    38.1 mm
  • Material
    Carbon Steel
Extension Spring 12.7 mm 1.82 Nmm Carbon Steel

10234549

Price Range
R 42,0145 - R 34,7227

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
    63.5 mm
  • Material
    Carbon Steel
Extension Spring 12.7 mm 0.96 Nmm Carbon Steel

10439548

Price Range
R 43,8181 - R 36,2133

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
    101.6 mm
  • Material
    Carbon Steel
Extension Spring 19.1 mm 4.27 Nmm Carbon Steel

10439579

Price Range
R 59,6003 - R 49,2564

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