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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 28,712 - R 34,7416 Request the lead time here
0.85 N
25.4 mm
Carbon Steel
9.21 N
R 28,436 - R 34,4075 Request the lead time here
0.85 N
22.4 mm
Carbon Steel
9.21 N
R 28,712 - R 34,7416 Request the lead time here
2.22 N
22.4 mm
Carbon Steel
23.58 N
R 28,712 - R 34,7416 Request the lead time here
2.22 N
34.8 mm
Carbon Steel
23.58 N
R 28,436 - R 34,4075 Request the lead time here
0.85 N
38.1 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
R 28,712 - R 34,7416 Request the lead time here
2.22 N
19.1 mm
Carbon Steel
23.58 N
R 28,712 - R 34,7416 Request the lead time here
2.22 N
31.8 mm
Carbon Steel
23.58 N
R 37,5671 - R 45,4561 Request the lead time here
2.22 N
127.0 mm
Carbon Steel
23.58 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 28,712 - R 34,7416 Request the lead time here
0.85 N
57.2 mm
Carbon Steel
9.21 N
R 30,1785 - R 36,516 Request the lead time here
3.65 N
38.1 mm
Carbon Steel
40.30 N
R 28,436 - R 34,4075 Request the lead time here
2.22 N
50.8 mm
Carbon Steel
23.58 N
R 28,712 - R 34,7416 Request the lead time here
2.22 N
57.2 mm
Carbon Steel
23.58 N
R 30,1785 - R 36,516 Request the lead time here
3.65 N
25.4 mm
Carbon Steel
40.30 N
R 30,1785 - R 36,516 Request the lead time here
3.65 N
57.2 mm
Carbon Steel
40.30 N
R 28,712 - R 34,7416 Request the lead time here
0.85 N
34.8 mm
Carbon Steel
9.21 N
10439241 R 37,5671 - R 45,4561 Request the lead time here
2.22 N
88.9 mm
Carbon Steel
23.58 N
R 30,1785 - R 36,516 Request the lead time here
3.65 N
63.5 mm
Carbon Steel
40.30 N
R 28,712 - R 34,7416 Request the lead time here
2.22 N
76.2 mm
Carbon Steel
23.58 N
  • of 10
Extension Spring 6.1 mm 0.23 Nmm Carbon Steel

10234495

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
    25.4 mm
  • Material
    Carbon Steel
Extension Spring 6.1 mm 0.30 Nmm Carbon Steel

10234488

Price Range
R 34,4075 - R 28,436

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
    22.4 mm
  • Material
    Carbon Steel
Extension Spring 6.1 mm 1.73 Nmm Carbon Steel

10439173

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
    22.4 mm
  • Material
    Carbon Steel
Extension Spring 6.1 mm 0.84 Nmm Carbon Steel

10424568

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
    34.8 mm
  • Material
    Carbon Steel
Extension Spring 6.1 mm 0.12 Nmm Carbon Steel

10439111

Price Range
R 34,4075 - R 28,436

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
    38.1 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
Extension Spring 6.1 mm 2.42 Nmm Carbon Steel

10439166

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
    19.1 mm
  • Material
    Carbon Steel
Extension Spring 6.1 mm 0.93 Nmm Carbon Steel

10234501

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
    31.8 mm
  • Material
    Carbon Steel
Extension Spring 6.1 mm 0.18 Nmm Carbon Steel

10439272

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
    127.0 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 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 10.6 mm 1.21 Nmm Carbon Steel

10424148

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
    38.1 mm
  • Material
    Carbon Steel
Extension Spring 6.1 mm 0.51 Nmm Carbon Steel

10439197

Price Range
R 34,4075 - R 28,436

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
    50.8 mm
  • Material
    Carbon Steel
Extension Spring 6.1 mm 0.44 Nmm Carbon Steel

10439203

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
    57.2 mm
  • Material
    Carbon Steel
Extension Spring 10.6 mm 3.85 Nmm Carbon Steel

10439289

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
    25.4 mm
  • Material
    Carbon Steel
Extension Spring 10.6 mm 0.60 Nmm Carbon Steel

10414798

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
    57.2 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 0.26 Nmm Carbon Steel

10439241

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
    88.9 mm
  • Material
    Carbon Steel
Extension Spring 10.6 mm 0.51 Nmm Carbon Steel

10439319

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
    63.5 mm
  • Material
    Carbon 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