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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 31,9498 - R 38,6593 Request the lead time here
7.56 N
44.5 mm
Carbon Steel
83.63 N
R 36,5649 - R 44,2435 Request the lead time here
7.56 N
114.3 mm
Carbon Steel
83.63 N
R 28,712 - R 34,7416 Request the lead time here
0.85 N
34.8 mm
Carbon Steel
9.21 N
R 34,2015 - R 41,3838 Request the lead time here
1.85 N
63.5 mm
Stainless Steel
19.64 N
R 33,8726 - R 40,9859 Request the lead time here
1.85 N
25.4 mm
Stainless Steel
19.64 N
R 39,6555 - R 47,9831 Request the lead time here
1.48 N
44.5 mm
Stainless Steel
16.30 N
R 30,1785 - R 36,516 Request the lead time here
6.23 N
63.5 mm
Carbon Steel
70.28 N
R 30,3218 - R 36,6894 Request the lead time here
1.78 N
57.2 mm
Carbon Steel
19.57 N
R 31,9498 - R 38,6593 Request the lead time here
7.56 N
31.8 mm
Carbon Steel
83.63 N
R 34,2015 - R 41,3838 Request the lead time here
0.71 N
31.8 mm
Stainless Steel
7.67 N
R 31,9498 - R 38,6593 Request the lead time here
7.56 N
38.1 mm
Carbon Steel
83.63 N
R 41,341 - R 50,0226 Request the lead time here
1.85 N
114.3 mm
Stainless Steel
19.64 N
R 52,684 - R 63,7476 Request the lead time here
27.89 N
76.2 mm
Carbon Steel
309.98 N
R 33,8726 - R 40,9859 Request the lead time here
0.71 N
19.1 mm
Stainless Steel
7.67 N
R 39,6178 - R 47,9376 Request the lead time here
5.19 N
34.8 mm
Stainless Steel
58.54 N
R 77,9901 - R 94,368 Request the lead time here
23.22 N
69.9 mm
Stainless Steel
258.22 N
R 34,2015 - R 41,3838 Request the lead time here
1.85 N
69.9 mm
Stainless Steel
19.64 N
R 39,6178 - R 47,9376 Request the lead time here
5.19 N
69.9 mm
Stainless Steel
58.54 N
R 30,1785 - R 36,516 Request the lead time here
6.23 N
76.2 mm
Carbon Steel
70.28 N
R 34,2015 - R 41,3838 Request the lead time here
1.85 N
15.8 mm
Stainless Steel
19.64 N
  • of 10
Extension Spring 12.7 mm 3.27 Nmm Carbon Steel

10439494

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
    44.5 mm
  • Material
    Carbon Steel
Extension Spring 12.7 mm 0.84 Nmm Carbon Steel

10439555

Price Range
R 44,2435 - R 36,5649

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
    114.3 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 0.32 Nmm Stainless Steel

10439753

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
    63.5 mm
  • Material
    Stainless Steel
Extension Spring 6.1 mm 1.09 Nmm Stainless Steel

10439715

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
    25.4 mm
  • Material
    Stainless Steel
Extension Spring 12.7 mm 0.18 Nmm Stainless Steel

10439951

Price Range
R 47,9831 - R 39,6555

Stock Levels
Request the lead time here
Attributes
  • Initial Tension
    1.48 N
  • Load at Load Length
    16.30 N
  • Maximum Application Temperature
    260 °C
  • Overall Length
    44.5 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 12.7 mm 0.14 Nmm Carbon Steel

10423905

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
    57.2 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 0.13 Nmm Stainless Steel

10420256

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
    31.8 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 6.1 mm 0.16 Nmm Stainless Steel

10439807

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
    114.3 mm
  • Material
    Stainless Steel
Extension Spring 19.1 mm 11.47 Nmm Carbon Steel

10439630

Price Range
R 63,7476 - R 52,684

Stock Levels
Request the lead time here
Attributes
  • Initial Tension
    27.89 N
  • Load at Load Length
    309.98 N
  • Maximum Application Temperature
    121 °C
  • Overall Length
    76.2 mm
  • Material
    Carbon Steel
Extension Spring 6.1 mm 0.35 Nmm Stainless Steel

10420577

Price Range
R 40,9859 - R 33,8726

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
    19.1 mm
  • Material
    Stainless Steel
Extension Spring 10.6 mm 3.43 Nmm Stainless Steel

10439883

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
    34.8 mm
  • Material
    Stainless Steel
Extension Spring 19.1 mm 11.01 Nmm Stainless Steel

10641828

Price Range
R 94,368 - R 77,9901

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
    69.9 mm
  • Material
    Stainless Steel
Extension Spring 6.1 mm 0.28 Nmm Stainless Steel

10439760

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
    69.9 mm
  • Material
    Stainless Steel
Extension Spring 10.6 mm 1.08 Nmm Stainless Steel

10416082

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
    69.9 mm
  • Material
    Stainless Steel
Extension Spring 10.6 mm 1.16 Nmm Carbon Steel

10234532

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
    76.2 mm
  • Material
    Carbon Steel
Extension Spring 6.1 mm 3.32 Nmm Stainless Steel

10439692

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
    15.8 mm
  • Material
    Stainless Steel