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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
10335123 R 29,0047 - R 35,0957 Request the lead time here
0.85 N
19.1 mm
Carbon Steel
9.21 N
R 29,2863 - R 35,4364 Request the lead time here
0.85 N
31.8 mm
Carbon Steel
9.21 N
10439128 R 29,2863 - R 35,4364 Request the lead time here
0.85 N
50.8 mm
Carbon Steel
9.21 N
R 29,2863 - R 35,4364 Request the lead time here
2.22 N
15.8 mm
Carbon Steel
23.58 N
R 29,2863 - R 35,4364 Request the lead time here
2.22 N
28.5 mm
Carbon Steel
23.58 N
R 35,0147 - R 35,0147 Request the lead time here
2.22 N
44.5 mm
Carbon Steel
23.58 N
R 29,2863 - R 35,4364 Request the lead time here
2.22 N
69.9 mm
Carbon Steel
23.58 N
R 37,9499 - R 45,9194 Request the lead time here
2.22 N
114.3 mm
Carbon Steel
23.58 N
R 30,782 - R 37,2463 Request the lead time here
3.65 N
31.8 mm
Carbon Steel
40.30 N
R 30,782 - R 37,2463 Request the lead time here
3.65 N
50.8 mm
Carbon Steel
40.30 N
R 30,782 - R 37,2463 Request the lead time here
3.65 N
76.2 mm
Carbon Steel
40.30 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 30,9282 - R 37,4232 Request the lead time here
1.78 N
31.8 mm
Carbon Steel
19.57 N
R 30,9282 - R 37,4232 Request the lead time here
1.78 N
50.8 mm
Carbon Steel
19.57 N
R 30,9282 - R 37,4232 Request the lead time here
1.78 N
76.2 mm
Carbon Steel
19.57 N
R 36,2746 - R 43,8922 Request the lead time here
1.78 N
127.0 mm
Carbon Steel
19.57 N
R 29,2863 - R 35,4364 Request the lead time here
2.22 N
22.4 mm
Carbon Steel
23.58 N
R 29,2863 - R 35,4364 Request the lead time here
2.22 N
34.8 mm
Carbon Steel
23.58 N
R 29,2863 - R 35,4364 Request the lead time here
2.22 N
57.2 mm
Carbon Steel
23.58 N
  • of 10
Extension Spring 6.1 mm 0.42 Nmm Carbon Steel

10335123

Price Range
R 35,0957 - R 29,0047

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
    19.1 mm
  • Material
    Carbon Steel
Extension Spring 6.1 mm 0.16 Nmm Carbon Steel

10439098

Price Range
R 35,4364 - R 29,2863

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

10439128

Price Range
R 35,4364 - R 29,2863

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 6.1 mm 3.99 Nmm Carbon Steel

10439159

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

10416396

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
    28.5 mm
  • Material
    Carbon Steel
Extension Spring 6.1 mm 0.60 Nmm Carbon Steel

10335130

Price Range
R 35,0147 - R 35,0147

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 6.1 mm 0.33 Nmm Carbon Steel

10439227

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

10439265

Price Range
R 45,9194 - R 37,9499

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 10.6 mm 1.84 Nmm Carbon Steel

10439296

Price Range
R 37,2463 - R 30,782

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 0.72 Nmm Carbon Steel

10419663

Price Range
R 37,2463 - R 30,782

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 0.40 Nmm Carbon Steel

10234518

Price Range
R 37,2463 - R 30,782

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 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 12.7 mm 0.49 Nmm Carbon Steel

10439371

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
    31.8 mm
  • Material
    Carbon Steel
Extension Spring 12.7 mm 0.18 Nmm Carbon Steel

10439418

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
    50.8 mm
  • Material
    Carbon Steel
Extension Spring 12.7 mm 0.09 Nmm Carbon Steel

10439449

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

10439456

Price Range
R 43,8922 - R 36,2746

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

10439173

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

10424568

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

10439203

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
    57.2 mm
  • Material
    Carbon Steel