Extension Springs

An extension spring or tension spring is a length of tightly coiled metal, usually steel with hooks or loops at either end. Extension springs absorb and store energy. You can find out more in our extension springs guide.

What does it do?

An extension spring is a component that creates a resis...

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RS PRO, 59 mm
RS PRO, 59 mm
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RS Stock No.751-916BrandRS PRO

AED 116.84

AED 11.684 Each (In a Pack of 10) (ex VAT)

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RS Pro
-
-
59mm
98.6mm
-
1.2mm
9.34N
1.35N/mm
-
RS PRO, 50 mm
RS PRO, 50 mm
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RS Stock No.751-865BrandRS PRO

AED 77.52

AED 7.752 Each (In a Pack of 10) (ex VAT)

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RS Pro
-
-
50mm
142.2mm
-
0.9mm
2.8N
0.23N/mm
-
RS PRO Steel Extension Spring, 44.6 mm x 9 mm OD
RS Stock No.751-837BrandRS PRO

AED 85.39

AED 8.539 Each (In a Pack of 10) (ex VAT)

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RS Pro
Extension Spring
Steel
44.6mm
130.2mm
9mm
0.8mm
19N
0.19N/mm
BS 1408 CR3, DIN 17223, RoHS
RS PRO Stainless Steel Extension Spring, 37.7 mm x 5.5 mm OD
RS Stock No.821-453BrandRS PRO

AED 80.33

AED 8.033 Each (In a Pack of 10) (ex VAT)

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RS Pro
Extension Spring
Stainless Steel
37.7mm
116.1mm
5.5mm
0.5mm
6.5N
0.07N/mm
DIN 17223, BS 1408 CR3, RoHS
RS PRO, 77.8 mm
RS PRO, 77.8 mm
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RS Stock No.121-359BrandRS PRO

AED 83.42

AED 16.684 Each (In a Pack of 5) (ex VAT)

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RS Pro
-
-
77.8mm
97.4mm
-
2.5mm
48.48N
13.7N/mm
-
RS PRO Stainless Steel Extension Spring, 35 mm x 7 mm OD
RS Stock No.821-504BrandRS PRO

AED 73.58

AED 7.358 Each (In a Pack of 10) (ex VAT)

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RS Pro
Extension Spring
Stainless Steel
35mm
101.5mm
7mm
0.63mm
1N
0.13N/mm
BS 1408 CR3, DIN 17223, RoHS
RS PRO Steel Extension Spring, 27.2 mm x 4 mm OD
RS Stock No.751-663BrandRS PRO

AED 75.83

AED 7.583 Each (In a Pack of 10) (ex VAT)

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RS Pro
Extension Spring
Steel
27.2mm
95.7mm
4mm
0.36mm
4.26N
0.06N/mm
DIN 17223, RoHS, BS 1408 CR3
RS PRO, 39.7 mm
RS PRO, 39.7 mm
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RS Stock No.751-944BrandRS PRO

AED 109.54

AED 10.954 Each (In a Pack of 10) (ex VAT)

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RS Pro
-
-
39.7mm
58.4mm
-
1.6mm
17.13N
5.02N/mm
-
RS PRO Steel Extension Spring, 87.7 mm x 17 mm OD
RS Stock No.751-950BrandRS PRO

AED 53.59

AED 53.59 1 Pack of 5 (ex VAT)

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RS Pro
Extension Spring
Steel
87.7mm
224.7mm
17mm
1.6mm
11N
0.46N/mm
RoHS, DIN 17223, BS 1408 CR3
RS PRO, 85.5 mm
RS PRO, 85.5 mm
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RS Stock No.121-365BrandRS PRO

AED 123.87

AED 24.774 Each (In a Pack of 5) (ex VAT)

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RS Pro
-
-
85.5mm
133.1mm
-
2.5mm
35.02N
4.27N/mm
-
RS PRO Stainless Steel Extension Spring, 24.5 mm x 3.5 mm OD
RS Stock No.821-431BrandRS PRO

AED 70.22

AED 7.022 Each (In a Pack of 10) (ex VAT)

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RS Pro
Extension Spring
Stainless Steel
24.5mm
41.8mm
3.5mm
0.5mm
10N
0.49N/mm
DIN 17223, BS 1408 CR3, RoHS
RS PRO, 44.1 mm
RS PRO, 44.1 mm
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RS Stock No.751-859BrandRS PRO

AED 71.90

AED 7.19 Each (In a Pack of 10) (ex VAT)

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RS Pro
-
-
44.1mm
73.8mm
-
0.9mm
5.62N
1.06N/mm
-
RS PRO Steel Extension Spring, 32.6 mm x 9 mm OD
RS Stock No.751-821BrandRS PRO

AED 88.20

AED 8.82 Each (In a Pack of 10) (ex VAT)

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RS Pro
Extension Spring
Steel
32.6mm
86.1mm
9mm
0.8mm
19N
0.3N/mm
DIN 17223, RoHS, BS 1408 CR3
RS PRO Steel Gate Spring, 200 mm
RS Stock No.894-6803BrandRS PRO

AED 51.96

AED 51.96 Each (ex VAT)

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RS Pro
Gate Spring
Steel
200mm
-
-
-
-
-
No
RS PRO, 34.4 mm
RS PRO, 34.4 mm
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RS Stock No.751-893BrandRS PRO

AED 87.07

AED 8.707 Each (In a Pack of 10) (ex VAT)

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RS Pro
-
-
34.4mm
76.7mm
-
1.1mm
5.35N
0.72N/mm
-
RS PRO Stainless Steel Extension Spring, 27.7 mm x 5.5 mm OD
RS Stock No.821-447BrandRS PRO

AED 73.58

AED 7.358 Each (In a Pack of 10) (ex VAT)

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RS Pro
Extension Spring
Stainless Steel
27.7mm
80mm
5.5mm
0.5mm
6.5N
0.11N/mm
DIN 17223, RoHS, BS 1408 CR3
RS PRO Steel Extension Spring, 25 mm x 5 mm OD
RS Stock No.751-691BrandRS PRO

AED 66.29

AED 6.629 Each (In a Pack of 10) (ex VAT)

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RS Pro
Extension Spring
Steel
25mm
80.8mm
5mm
0.45mm
6.48N
0.11N/mm
DIN 17223, RoHS, BS 1408 CR3
RS PRO, 75.4 mm
RS PRO, 75.4 mm
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RS Stock No.751-887BrandRS PRO

AED 96.62

AED 9.662 Each (In a Pack of 10) (ex VAT)

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RS Pro
-
-
75.4mm
224.4mm
-
1mm
4.27N
0.17N/mm
-
RS PRO Stainless Steel Extension Spring, 30.4 mm x 6 mm OD
RS Stock No.821-475BrandRS PRO

AED 73.58

AED 7.358 Each (In a Pack of 10) (ex VAT)

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RS Pro
Extension Spring
Stainless Steel
30.4mm
86.6mm
6mm
0.55mm
7.9N
0.12N/mm
BS 1408 CR3, DIN 17223, RoHS
RS PRO Steel Extension Spring, 35 mm x 7 mm OD
RS Stock No.751-770BrandRS PRO

AED 69.66

AED 6.966 Each (In a Pack of 10) (ex VAT)

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RS Pro
Extension Spring
Steel
35mm
101.5mm
7mm
0.63mm
12.2N
0.16N/mm
DIN 17223, RoHS, BS 1408 CR3