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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Product SKUs information
Essentra Part Number	Price range	Availability	Initial Tension	Overall Length	Material	Load at Load Length
	£ 1.5024 - £ 1.6442	Request the lead time here	6.23 N 6.23 N	2.252 in 57.2 mm	Carbon Steel	70.28 N 70.28 N

	£ 1.4316 - £ 1.5591	Request the lead time here	2.22 N 2.22 N	1.5 in 38.1 mm	Carbon Steel	23.58 N 23.58 N

	£ 1.8851 - £ 2.0411	Request the lead time here	2.22 N 2.22 N	4 in 101.6 mm	Carbon Steel	23.58 N 23.58 N

	£ 1.7717 - £ 1.9418	Request the lead time here	1.78 N 1.78 N	5 in 127.0 mm	Carbon Steel	19.57 N 19.57 N

	£ 1.7292 - £ 1.8851	Request the lead time here	7.56 N 7.56 N	2.752 in 69.9 mm	Carbon Steel	83.63 N 83.63 N

	£ 2.4663 - £ 2.6789	Request the lead time here	12.32 N 12.32 N	2.5 in 63.5 mm	Carbon Steel	137.09 N 137.09 N

	£ 1.5166 - £ 1.6584	Request the lead time here	1.78 N 1.78 N	2.752 in 69.9 mm	Carbon Steel	19.57 N 19.57 N

	£ 1.4316 - £ 1.5591	Request the lead time here	0.85 N 0.85 N	2.752 in 69.9 mm	Carbon Steel	9.21 N 9.21 N

	£ 1.4316 - £ 1.5591	Request the lead time here	0.85 N 0.85 N	0.752 in 19.1 mm	Carbon Steel	9.21 N 9.21 N

	£ 1.4316 - £ 1.5591	Request the lead time here	0.85 N 0.85 N	2 in 50.8 mm	Carbon Steel	9.21 N 9.21 N

	£ 1.4316 - £ 1.5591	Request the lead time here	2.22 N 2.22 N	1.122 in 28.5 mm	Carbon Steel	23.58 N 23.58 N

	£ 1.4316 - £ 1.5591	Request the lead time here	0.85 N 0.85 N	1 in 25.4 mm	Carbon Steel	9.21 N 9.21 N

10439142	£ 1.4316 - £ 1.5591	Request the lead time here	0.85 N 0.85 N	2.5 in 63.5 mm	Carbon Steel	9.21 N 9.21 N

	£ 1.715 - £ 1.8568	Request the lead time here	0.71 N 0.71 N	1.37 in 34.8 mm	Stainless Steel	7.67 N 7.67 N

	£ 1.715 - £ 1.8568	Request the lead time here	0.71 N 0.71 N	0.752 in 19.1 mm	Stainless Steel	7.67 N 7.67 N

	£ 1.715 - £ 1.8568	Request the lead time here	0.71 N 0.71 N	2 in 50.8 mm	Stainless Steel	7.67 N 7.67 N

	£ 3.3876 - £ 3.6711	Request the lead time here	27.89 N 27.89 N	5.5 in 139.7 mm	Carbon Steel	309.98 N 309.98 N

	£ 1.4316 - £ 1.5591	Request the lead time here	2.22 N 2.22 N	1.37 in 34.8 mm	Carbon Steel	23.58 N 23.58 N

	£ 2.6647 - £ 2.8915	Request the lead time here	12.32 N 12.32 N	3.5 in 88.9 mm	Carbon Steel	137.09 N 137.09 N

	£ 2.3104 - £ 2.5088	Request the lead time here	6.30 N 6.30 N	1.37 in 34.8 mm	Stainless Steel	69.66 N 69.66 N