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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 30,1785 - R 36,516 Request the lead time here
6.23 N
38.1 mm
Carbon Steel
70.28 N
R 34,3889 - R 41,6105 Request the lead time here
7.56 N
76.2 mm
Carbon Steel
83.63 N
R 49,2564 - R 59,6003 Request the lead time here
12.32 N
63.5 mm
Carbon Steel
137.09 N
R 29,8883 - R 36,1648 Request the lead time here
3.65 N
28.5 mm
Carbon Steel
40.30 N
R 50,0223 - R 60,527 Request the lead time here
27.89 N
57.2 mm
Carbon Steel
309.98 N
R 53,1029 - R 64,2545 Request the lead time here
12.32 N
69.9 mm
Carbon Steel
137.09 N
R 67,5231 - R 81,703 Request the lead time here
27.89 N
139.7 mm
Carbon Steel
309.98 N
R 50,0223 - R 60,527 Request the lead time here
27.89 N
63.5 mm
Carbon Steel
309.98 N
R 34,2015 - R 41,3838 Request the lead time here
1.85 N
19.1 mm
Stainless Steel
19.64 N
R 29,8883 - R 36,1648 Request the lead time here
6.23 N
50.8 mm
Carbon Steel
70.28 N
10422403 R 30,1785 - R 36,516 Request the lead time here
6.23 N
44.5 mm
Carbon Steel
70.28 N
R 34,2015 - R 41,3838 Request the lead time here
1.85 N
22.4 mm
Stainless Steel
19.64 N
R 34,2015 - R 41,3838 Request the lead time here
1.85 N
50.8 mm
Stainless Steel
19.64 N
R 34,2015 - R 41,3838 Request the lead time here
0.71 N
34.8 mm
Stainless Steel
7.67 N
R 31,9498 - R 38,6593 Request the lead time here
7.56 N
50.8 mm
Carbon Steel
83.63 N
R 67,5231 - R 81,703 Request the lead time here
27.89 N
152.4 mm
Carbon Steel
309.98 N
R 36,5649 - R 44,2435 Request the lead time here
7.56 N
127.0 mm
Carbon Steel
83.63 N
R 34,2015 - R 41,3838 Request the lead time here
0.71 N
38.1 mm
Stainless Steel
7.67 N
R 55,8559 - R 67,5856 Request the lead time here
12.32 N
114.3 mm
Carbon Steel
137.09 N
R 58,0799 - R 70,2767 Request the lead time here
27.89 N
101.6 mm
Carbon Steel
309.98 N
  • of 10
Extension Spring 10.6 mm 3.41 Nmm Carbon Steel

10646021

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
    38.1 mm
  • Material
    Carbon Steel
Extension Spring 12.7 mm 1.42 Nmm Carbon Steel

10439524

Price Range
R 41,6105 - R 34,3889

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
    76.2 mm
  • Material
    Carbon 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 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 19.1 mm 20.22 Nmm Carbon Steel

10439609

Price Range
R 60,527 - R 50,0223

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
    57.2 mm
  • Material
    Carbon Steel
Extension Spring 19.1 mm 2.73 Nmm Carbon Steel

10439586

Price Range
R 64,2545 - R 53,1029

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
    69.9 mm
  • Material
    Carbon Steel
Extension Spring 19.1 mm 4.64 Nmm Carbon Steel

10645277

Price Range
R 81,703 - R 67,5231

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
    139.7 mm
  • Material
    Carbon Steel
Extension Spring 19.1 mm 15.64 Nmm Carbon Steel

10439616

Price Range
R 60,527 - R 50,0223

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
    63.5 mm
  • Material
    Carbon Steel
Extension Spring 6.1 mm 2.02 Nmm Stainless Steel

10635018

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
    19.1 mm
  • Material
    Stainless 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
Extension Spring 10.6 mm 2.57 Nmm Carbon Steel

10422403

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
    44.5 mm
  • Material
    Carbon Steel
Extension Spring 6.1 mm 1.44 Nmm Stainless Steel

10439708

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
    22.4 mm
  • Material
    Stainless Steel
Extension Spring 6.1 mm 0.42 Nmm Stainless Steel

10439746

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
    50.8 mm
  • Material
    Stainless Steel
Extension Spring 6.1 mm 0.12 Nmm Stainless Steel

10439661

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
    34.8 mm
  • Material
    Stainless Steel
Extension Spring 12.7 mm 2.59 Nmm Carbon Steel

10439500

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
    50.8 mm
  • Material
    Carbon Steel
Extension Spring 19.1 mm 4.19 Nmm Carbon Steel

10643389

Price Range
R 81,703 - R 67,5231

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
    152.4 mm
  • Material
    Carbon Steel
Extension Spring 12.7 mm 0.74 Nmm Carbon Steel

10415047

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
    127.0 mm
  • Material
    Carbon 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 19.1 mm 1.21 Nmm Carbon Steel

10632925

Price Range
R 67,5856 - R 55,8559

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
    114.3 mm
  • Material
    Carbon Steel
Extension Spring 19.1 mm 7.16 Nmm Carbon Steel

10643426

Price Range
R 70,2767 - R 58,0799

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
    101.6 mm
  • Material
    Carbon Steel