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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
Item Code Price range Availability Loaded Length Spring Rate Initial Tension Overall Length Material Load at Load Length Outside Diameter View
1217499 £ 1.715 - £ 1.8568 Request the lead time here
1.85 N
69.9 mm
Stainless Steel
19.64 N
£ 1.8284 - £ 1.9844 Request the lead time here
7.56 N
114.3 mm
Carbon Steel
83.63 N
£ 2.4663 - £ 2.6789 Request the lead time here
12.32 N
63.5 mm
Carbon Steel
137.09 N
£ 2.7923 - £ 3.0333 Request the lead time here
12.32 N
101.6 mm
Carbon Steel
137.09 N
£ 1.9844 - £ 2.1545 Request the lead time here
3.04 N
38.1 mm
Stainless Steel
33.57 N
£ 1.9844 - £ 2.1545 Request the lead time here
3.04 N
63.5 mm
Stainless Steel
33.57 N
£ 1.9844 - £ 2.1545 Request the lead time here
5.19 N
28.5 mm
Stainless Steel
58.54 N
£ 1.9844 - £ 2.1545 Request the lead time here
5.19 N
44.5 mm
Stainless Steel
58.54 N
1217525 £ 1.9844 - £ 2.1545 Request the lead time here
5.19 N
69.9 mm
Stainless Steel
58.54 N
£ 1.9844 - £ 2.1545 Request the lead time here
3.04 N
76.2 mm
Stainless Steel
33.57 N
£ 1.9844 - £ 2.1545 Request the lead time here
5.19 N
34.8 mm
Stainless Steel
58.54 N
£ 1.9844 - £ 2.1545 Request the lead time here
5.19 N
57.2 mm
Stainless Steel
58.54 N
£ 1.9844 - £ 2.1545 Request the lead time here
1.48 N
31.8 mm
Stainless Steel
16.30 N
£ 2.3245 - £ 2.5372 Request the lead time here
6.30 N
63.5 mm
Stainless Steel
69.66 N
£ 2.4663 - £ 2.6789 Request the lead time here
6.30 N
101.6 mm
Stainless Steel
69.66 N
£ 3.5577 - £ 3.8554 Request the lead time here
10.26 N
57.2 mm
Stainless Steel
114.20 N
£ 3.8695 - £ 4.2097 Request the lead time here
10.28 N
88.9 mm
Stainless Steel
114.19 N
£ 3.9546 - £ 4.2948 Request the lead time here
23.22 N
50.8 mm
Stainless Steel
258.22 N
£ 1.9844 - £ 2.1545 Request the lead time here
5.19 N
31.8 mm
Stainless Steel
58.54 N
£ 1.9844 - £ 2.1545 Request the lead time here
5.19 N
50.8 mm
Stainless Steel
58.54 N
  • of 10
Extension Spring 6.1 mm 0.28 Nmm Stainless Steel

1217499

Price Range
£ 1.8568 - £ 1.715

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
    69.9 mm
  • Material
    Stainless Steel
Extension Spring 12.7 mm 0.84 Nmm Carbon Steel

1217452

Price Range
£ 1.9844 - £ 1.8284

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
    114.3 mm
  • Material
    Carbon Steel
Extension Spring 19.1 mm 3.33 Nmm Carbon Steel

1217456

Price Range
£ 2.6789 - £ 2.4663

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
    63.5 mm
  • Material
    Carbon Steel
Extension Spring 19.1 mm 1.44 Nmm Carbon Steel

1217460

Price Range
£ 3.0333 - £ 2.7923

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
    101.6 mm
  • Material
    Carbon Steel
Extension Spring 10.6 mm 1.01 Nmm Stainless Steel

1217509

Price Range
£ 2.1545 - £ 1.9844

Stock Levels
Request the lead time here
Attributes
  • Initial Tension
    3.04 N
  • Load at Load Length
    33.57 N
  • Maximum Application Temperature
    260 °C
  • Overall Length
    38.1 mm
  • Material
    Stainless Steel
Extension Spring 10.6 mm 0.42 Nmm Stainless Steel

1217513

Price Range
£ 2.1545 - £ 1.9844

Stock Levels
Request the lead time here
Attributes
  • Initial Tension
    3.04 N
  • Load at Load Length
    33.57 N
  • Maximum Application Temperature
    260 °C
  • Overall Length
    63.5 mm
  • Material
    Stainless Steel
Extension Spring 10.6 mm 5.66 Nmm Stainless Steel

1217517

Price Range
£ 2.1545 - £ 1.9844

Stock Levels
Request the lead time here
Attributes
  • Initial Tension
    5.19 N
  • Load at Load Length
    58.54 N
  • Maximum Application Temperature
    260 °C
  • Overall Length
    28.5 mm
  • Material
    Stainless Steel
Extension Spring 10.6 mm 2.14 Nmm Stainless Steel

1217521

Price Range
£ 2.1545 - £ 1.9844

Stock Levels
Request the lead time here
Attributes
  • Initial Tension
    5.19 N
  • Load at Load Length
    58.54 N
  • Maximum Application Temperature
    260 °C
  • Overall Length
    44.5 mm
  • Material
    Stainless Steel
Extension Spring 10.6 mm 1.08 Nmm Stainless Steel

1217525

Price Range
£ 2.1545 - £ 1.9844

Stock Levels
Request the lead time here
Attributes
  • Initial Tension
    5.19 N
  • Load at Load Length
    58.54 N
  • Maximum Application Temperature
    260 °C
  • Overall Length
    69.9 mm
  • Material
    Stainless Steel
Extension Spring 10.6 mm 0.34 Nmm Stainless Steel

1217515

Price Range
£ 2.1545 - £ 1.9844

Stock Levels
Request the lead time here
Attributes
  • Initial Tension
    3.04 N
  • Load at Load Length
    33.57 N
  • Maximum Application Temperature
    260 °C
  • Overall Length
    76.2 mm
  • Material
    Stainless Steel
Extension Spring 10.6 mm 3.43 Nmm Stainless Steel

1217519

Price Range
£ 2.1545 - £ 1.9844

Stock Levels
Request the lead time here
Attributes
  • Initial Tension
    5.19 N
  • Load at Load Length
    58.54 N
  • Maximum Application Temperature
    260 °C
  • Overall Length
    34.8 mm
  • Material
    Stainless Steel
Extension Spring 10.6 mm 1.43 Nmm Stainless Steel

1217523

Price Range
£ 2.1545 - £ 1.9844

Stock Levels
Request the lead time here
Attributes
  • Initial Tension
    5.19 N
  • Load at Load Length
    58.54 N
  • Maximum Application Temperature
    260 °C
  • Overall Length
    57.2 mm
  • Material
    Stainless Steel
Extension Spring 12.7 mm 0.41 Nmm Stainless Steel

1217527

Price Range
£ 2.1545 - £ 1.9844

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

1217546

Price Range
£ 2.5372 - £ 2.3245

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 12.7 mm 0.80 Nmm Stainless Steel

1217550

Price Range
£ 2.6789 - £ 2.4663

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
    101.6 mm
  • Material
    Stainless Steel
Extension Spring 19.1 mm 3.56 Nmm Stainless Steel

1217554

Price Range
£ 3.8554 - £ 3.5577

Stock Levels
Request the lead time here
Attributes
  • Initial Tension
    10.26 N
  • Load at Load Length
    114.20 N
  • Maximum Application Temperature
    260 °C
  • Overall Length
    57.2 mm
  • Material
    Stainless Steel
Extension Spring 19.1 mm 1.47 Nmm Stainless Steel

1217558

Price Range
£ 4.2097 - £ 3.8695

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
    88.9 mm
  • Material
    Stainless Steel
Extension Spring 19.1 mm 22.04 Nmm Stainless Steel

1217562

Price Range
£ 4.2948 - £ 3.9546

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
    50.8 mm
  • Material
    Stainless Steel
Extension Spring 10.6 mm 4.23 Nmm Stainless Steel

1217518

Price Range
£ 2.1545 - £ 1.9844

Stock Levels
Request the lead time here
Attributes
  • Initial Tension
    5.19 N
  • Load at Load Length
    58.54 N
  • Maximum Application Temperature
    260 °C
  • Overall Length
    31.8 mm
  • Material
    Stainless Steel
Extension Spring 10.6 mm 1.72 Nmm Stainless Steel

1217522

Price Range
£ 2.1545 - £ 1.9844

Stock Levels
Request the lead time here
Attributes
  • Initial Tension
    5.19 N
  • Load at Load Length
    58.54 N
  • Maximum Application Temperature
    260 °C
  • Overall Length
    50.8 mm
  • Material
    Stainless Steel