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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 28,436 - R 34,4075 Request the lead time here
0.85 N
28.5 mm
Carbon Steel
9.21 N
R 28,712 - R 34,7416 Request the lead time here
2.22 N
31.8 mm
Carbon Steel
23.58 N
R 28,436 - R 34,4075 Request the lead time here
0.85 N
44.5 mm
Carbon Steel
9.21 N
10439128 R 28,712 - R 34,7416 Request the lead time here
0.85 N
50.8 mm
Carbon Steel
9.21 N
R 36,5649 - R 44,2435 Request the lead time here
7.56 N
88.9 mm
Carbon Steel
83.63 N
R 28,712 - R 34,7416 Request the lead time here
2.22 N
38.1 mm
Carbon Steel
23.58 N
R 34,3281 - R 34,3281 Request the lead time here
2.22 N
44.5 mm
Carbon Steel
23.58 N
R 30,1785 - R 36,516 Request the lead time here
3.65 N
34.8 mm
Carbon Steel
40.30 N
R 53,1029 - R 64,2545 Request the lead time here
12.32 N
76.2 mm
Carbon Steel
137.09 N
R 28,712 - R 34,7416 Request the lead time here
2.22 N
69.9 mm
Carbon Steel
23.58 N
R 28,712 - R 34,7416 Request the lead time here
2.22 N
63.5 mm
Carbon Steel
23.58 N
R 37,2058 - R 45,0191 Request the lead time here
2.22 N
114.3 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
R 30,1785 - R 36,516 Request the lead time here
3.65 N
31.8 mm
Carbon Steel
40.30 N
R 29,8883 - R 36,1648 Request the lead time here
3.65 N
28.5 mm
Carbon Steel
40.30 N
R 30,1785 - R 36,516 Request the lead time here
3.65 N
50.8 mm
Carbon Steel
40.30 N
R 30,1785 - R 36,516 Request the lead time here
3.65 N
44.5 mm
Carbon Steel
40.30 N
R 30,1785 - R 36,516 Request the lead time here
6.23 N
38.1 mm
Carbon Steel
70.28 N
R 30,1785 - R 36,516 Request the lead time here
3.65 N
69.9 mm
Carbon Steel
40.30 N
R 30,1785 - R 36,516 Request the lead time here
6.23 N
63.5 mm
Carbon Steel
70.28 N
  • of 10
Extension Spring 6.1 mm 0.19 Nmm Carbon Steel

10439081

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
    28.5 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 0.11 Nmm Carbon Steel

10645284

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
    44.5 mm
  • Material
    Carbon Steel
Extension Spring 6.1 mm 0.09 Nmm Carbon Steel

10439128

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
    50.8 mm
  • Material
    Carbon Steel
Extension Spring 12.7 mm 1.16 Nmm Carbon Steel

10439531

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
    88.9 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 0.60 Nmm Carbon Steel

10335130

Price Range
R 34,3281 - R 34,3281

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
    44.5 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 19.1 mm 2.31 Nmm Carbon Steel

10423660

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
    76.2 mm
  • Material
    Carbon 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 6.1 mm 0.39 Nmm Carbon Steel

10439210

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
    63.5 mm
  • Material
    Carbon Steel
Extension Spring 6.1 mm 0.19 Nmm Carbon Steel

10439265

Price Range
R 45,0191 - R 37,2058

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
    114.3 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 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 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 10.6 mm 0.72 Nmm Carbon Steel

10419663

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
    50.8 mm
  • Material
    Carbon Steel
Extension Spring 10.6 mm 0.89 Nmm Carbon Steel

10418970

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
    44.5 mm
  • Material
    Carbon Steel
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 10.6 mm 0.44 Nmm Carbon Steel

10439326

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
    69.9 mm
  • Material
    Carbon 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