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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 28,712 - R 34,7416 Request the lead time here
0.85 N
69.9 mm
Carbon Steel
9.21 N
R 28,712 - R 34,7416 Request the lead time here
2.22 N
38.1 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
10439968 R 39,6555 - R 47,9831 Request the lead time here
1.48 N
50.8 mm
Stainless Steel
16.30 N
R 28,712 - R 34,7416 Request the lead time here
2.22 N
76.2 mm
Carbon Steel
23.58 N
R 46,4574 - R 56,2135 Request the lead time here
1.48 N
114.3 mm
Stainless Steel
16.30 N
R 30,1785 - R 36,516 Request the lead time here
3.65 N
76.2 mm
Carbon Steel
40.30 N
R 30,1785 - R 36,516 Request the lead time here
3.65 N
34.8 mm
Carbon Steel
40.30 N
R 30,1785 - R 36,516 Request the lead time here
3.65 N
31.8 mm
Carbon Steel
40.30 N
R 116,8734 - R 141,4168 Request the lead time here
23.22 N
152.4 mm
Stainless Steel
258.22 N
R 46,9085 - R 56,7593 Request the lead time here
1.48 N
127.0 mm
Stainless Steel
16.30 N
R 46,738 - R 56,553 Request the lead time here
6.30 N
63.5 mm
Stainless Steel
69.66 N
R 29,8883 - R 36,1648 Request the lead time here
6.23 N
25.4 mm
Carbon Steel
70.28 N
R 28,712 - R 34,7416 Request the lead time here
2.22 N
28.5 mm
Carbon Steel
23.58 N
R 77,585 - R 93,8779 Request the lead time here
10.28 N
69.9 mm
Stainless Steel
114.19 N
R 39,6555 - R 47,9831 Request the lead time here
1.48 N
44.5 mm
Stainless Steel
16.30 N
R 28,712 - R 34,7416 Request the lead time here
2.22 N
69.9 mm
Carbon Steel
23.58 N
10633830 R 79,0902 - R 95,6991 Request the lead time here
23.22 N
63.5 mm
Stainless Steel
258.22 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
0.85 N
63.5 mm
Carbon Steel
9.21 N
  • of 10
Extension Spring 6.1 mm 0.05 Nmm Carbon Steel

10636695

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
    69.9 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 0.23 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 12.7 mm 0.15 Nmm Stainless Steel

10439968

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
    50.8 mm
  • Material
    Stainless Steel
Extension Spring 6.1 mm 0.30 Nmm Carbon Steel

10439234

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
    76.2 mm
  • Material
    Carbon Steel
Extension Spring 12.7 mm 0.04 Nmm Stainless Steel

10440018

Price Range
R 56,2135 - R 46,4574

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
    114.3 mm
  • Material
    Stainless Steel
Extension Spring 10.6 mm 0.40 Nmm Carbon Steel

10234518

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
    76.2 mm
  • Material
    Carbon Steel
Extension Spring 10.6 mm 1.47 Nmm Carbon Steel

10439302

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
    34.8 mm
  • Material
    Carbon Steel
Extension Spring 10.6 mm 1.84 Nmm Carbon Steel

10439296

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
    31.8 mm
  • Material
    Carbon Steel
Extension Spring 19.1 mm 3.49 Nmm Stainless Steel

10635094

Price Range
R 141,4168 - R 116,8734

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
    152.4 mm
  • Material
    Stainless Steel
Extension Spring 12.7 mm 0.03 Nmm Stainless Steel

10440025

Price Range
R 56,7593 - R 46,9085

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
    127.0 mm
  • Material
    Stainless Steel
Extension Spring 12.7 mm 1.52 Nmm Stainless Steel

10440087

Price Range
R 56,553 - R 46,738

Stock Levels
Request the lead time here
Attributes
  • Initial Tension
    6.30 N
  • Load at Load Length
    69.66 N
  • Maximum Application Temperature
    260 °C
  • Overall Length
    63.5 mm
  • Material
    Stainless Steel
Extension Spring 10.6 mm 9.91 Nmm Carbon Steel

10632918

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
    25.4 mm
  • Material
    Carbon Steel
Extension Spring 6.1 mm 1.14 Nmm Carbon Steel

10416396

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
    28.5 mm
  • Material
    Carbon Steel
Extension Spring 19.1 mm 2.28 Nmm Stainless Steel

10641811

Price Range
R 93,8779 - R 77,585

Stock Levels
Request the lead time here
Attributes
  • Initial Tension
    10.28 N
  • Load at Load Length
    114.19 N
  • Maximum Application Temperature
    230 °C
  • Overall Length
    69.9 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 6.1 mm 0.33 Nmm Carbon Steel

10439227

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
    69.9 mm
  • Material
    Carbon Steel
Extension Spring 19.1 mm 13.03 Nmm Stainless Steel

10633830

Price Range
R 95,6991 - R 79,0902

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
    63.5 mm
  • Material
    Stainless 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 0.05 Nmm Carbon Steel

10439142

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
    63.5 mm
  • Material
    Carbon Steel