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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 29,2863 - R 35,4364 Request the lead time here
2.22 N
38.1 mm
Carbon Steel
23.58 N
R 30,9282 - R 37,4232 Request the lead time here
1.78 N
57.2 mm
Carbon Steel
19.57 N
R 34,0304 - R 41,1767 Request the lead time here
1.78 N
88.9 mm
Carbon Steel
19.57 N
R 32,5888 - R 39,4325 Request the lead time here
7.56 N
31.8 mm
Carbon Steel
83.63 N
R 32,5888 - R 39,4325 Request the lead time here
7.56 N
50.8 mm
Carbon Steel
83.63 N
R 35,0766 - R 42,4427 Request the lead time here
7.56 N
76.2 mm
Carbon Steel
83.63 N
R 37,2962 - R 45,1284 Request the lead time here
7.56 N
127.0 mm
Carbon Steel
83.63 N
R 54,1649 - R 65,5396 Request the lead time here
12.32 N
69.9 mm
Carbon Steel
137.09 N
R 56,973 - R 68,9373 Request the lead time here
12.32 N
114.3 mm
Carbon Steel
137.09 N
R 30,782 - R 37,2463 Request the lead time here
6.23 N
34.8 mm
Carbon Steel
70.28 N
R 30,4861 - R 36,8881 Request the lead time here
6.23 N
57.2 mm
Carbon Steel
70.28 N
R 50,2415 - R 60,7923 Request the lead time here
12.32 N
57.2 mm
Carbon Steel
137.09 N
R 53,6441 - R 64,9094 Request the lead time here
12.32 N
88.9 mm
Carbon Steel
137.09 N
R 51,0227 - R 61,7375 Request the lead time here
27.89 N
50.8 mm
Carbon Steel
309.98 N
R 53,7377 - R 65,0226 Request the lead time here
27.89 N
76.2 mm
Carbon Steel
309.98 N
R 59,2415 - R 71,6822 Request the lead time here
27.89 N
127.0 mm
Carbon Steel
309.98 N
R 34,5501 - R 41,8056 Request the lead time here
0.71 N
19.1 mm
Stainless Steel
7.67 N
R 34,8855 - R 42,2114 Request the lead time here
0.71 N
31.8 mm
Stainless Steel
7.67 N
R 34,8855 - R 42,2114 Request the lead time here
0.71 N
50.8 mm
Stainless Steel
7.67 N
R 34,8855 - R 42,2114 Request the lead time here
1.85 N
15.8 mm
Stainless Steel
19.64 N
  • of 10
Extension Spring 6.1 mm 0.74 Nmm Carbon Steel

10439180

Price Range
R 35,4364 - R 29,2863

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 12.7 mm 0.14 Nmm Carbon Steel

10423905

Price Range
R 37,4232 - R 30,9282

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 0.07 Nmm Carbon Steel

10412084

Price Range
R 41,1767 - R 34,0304

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
    88.9 mm
  • Material
    Carbon Steel
Extension Spring 12.7 mm 8.21 Nmm Carbon Steel

10439463

Price Range
R 39,4325 - R 32,5888

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 12.7 mm 2.59 Nmm Carbon Steel

10439500

Price Range
R 39,4325 - R 32,5888

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 12.7 mm 1.42 Nmm Carbon Steel

10439524

Price Range
R 42,4427 - R 35,0766

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 12.7 mm 0.74 Nmm Carbon Steel

10415047

Price Range
R 45,1284 - R 37,2962

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 19.1 mm 2.73 Nmm Carbon Steel

10439586

Price Range
R 65,5396 - R 54,1649

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 1.21 Nmm Carbon Steel

10632925

Price Range
R 68,9373 - R 56,973

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 10.6 mm 4.12 Nmm Carbon Steel

10234525

Price Range
R 37,2463 - R 30,782

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
    34.8 mm
  • Material
    Carbon Steel
Extension Spring 10.6 mm 1.72 Nmm Carbon Steel

10439357

Price Range
R 36,8881 - R 30,4861

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 19.1 mm 4.27 Nmm Carbon Steel

10439579

Price Range
R 60,7923 - R 50,2415

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
Extension Spring 19.1 mm 1.77 Nmm Carbon Steel

10413654

Price Range
R 64,9094 - R 53,6441

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
    88.9 mm
  • Material
    Carbon Steel
Extension Spring 19.1 mm 26.46 Nmm Carbon Steel

10439593

Price Range
R 61,7375 - R 51,0227

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
    50.8 mm
  • Material
    Carbon Steel
Extension Spring 19.1 mm 11.47 Nmm Carbon Steel

10439630

Price Range
R 65,0226 - R 53,7377

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 19.1 mm 5.29 Nmm Carbon Steel

10632932

Price Range
R 71,6822 - R 59,2415

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
    127.0 mm
  • Material
    Carbon Steel
Extension Spring 6.1 mm 0.35 Nmm Stainless Steel

10420577

Price Range
R 41,8056 - R 34,5501

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 6.1 mm 0.13 Nmm Stainless Steel

10420256

Price Range
R 42,2114 - R 34,8855

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 6.1 mm 0.07 Nmm Stainless Steel

10424711

Price Range
R 42,2114 - R 34,8855

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
    50.8 mm
  • Material
    Stainless Steel
Extension Spring 6.1 mm 3.32 Nmm Stainless Steel

10439692

Price Range
R 42,2114 - R 34,8855

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