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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Product SKUs information
Essentra Part Number	Price range	Availability	Initial Tension	Overall Length	Material	Load at Load Length
10335123	R 29,0047 - R 35,0957	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

	R 30,782 - R 37,2463	Request the lead time here	6.23 N 6.23 N	1.37 in 34.8 mm	Carbon Steel	70.28 N 70.28 N

	R 30,9282 - R 37,4232	Request the lead time here	1.78 N 1.78 N	1.252 in 31.8 mm	Carbon Steel	19.57 N 19.57 N

	R 30,9282 - R 37,4232	Request the lead time here	1.78 N 1.78 N	3 in 76.2 mm	Carbon Steel	19.57 N 19.57 N

	R 32,5888 - R 39,4325	Request the lead time here	7.56 N 7.56 N	1.752 in 44.5 mm	Carbon Steel	83.63 N 83.63 N

10439128	R 29,2863 - R 35,4364	Request the lead time here	0.85 N 0.85 N	2 in 50.8 mm	Carbon Steel	9.21 N 9.21 N

	R 29,2863 - R 35,4364	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

	R 40,4102 - R 48,8963	Request the lead time here	3.04 N 3.04 N	1 in 25.4 mm	Stainless Steel	33.57 N 33.57 N

	R 72,583 - R 87,8255	Request the lead time here	10.28 N 10.28 N	2.5 in 63.5 mm	Stainless Steel	114.19 N 114.19 N

	R 80,672 - R 97,6131	Request the lead time here	23.22 N 23.22 N	2.252 in 57.2 mm	Stainless Steel	258.22 N 258.22 N

	R 32,5888 - R 39,4325	Request the lead time here	7.56 N 7.56 N	1.252 in 31.8 mm	Carbon Steel	83.63 N 83.63 N

	R 35,0766 - R 42,4427	Request the lead time here	7.56 N 7.56 N	3 in 76.2 mm	Carbon Steel	83.63 N 83.63 N

	R 54,1649 - R 65,5396	Request the lead time here	12.32 N 12.32 N	2.752 in 69.9 mm	Carbon Steel	137.09 N 137.09 N

	R 51,0227 - R 61,7375	Request the lead time here	27.89 N 27.89 N	2.5 in 63.5 mm	Carbon Steel	309.98 N 309.98 N

	R 68,8736 - R 83,337	Request the lead time here	27.89 N 27.89 N	6 in 152.4 mm	Carbon Steel	309.98 N 309.98 N

	R 34,8855 - R 42,2114	Request the lead time here	0.71 N 0.71 N	1.5 in 38.1 mm	Stainless Steel	7.67 N 7.67 N

	R 34,8855 - R 42,2114	Request the lead time here	1.85 N 1.85 N	0.882 in 22.4 mm	Stainless Steel	19.64 N 19.64 N

	R 34,5501 - R 41,8056	Request the lead time here	1.85 N 1.85 N	2.252 in 57.2 mm	Stainless Steel	19.64 N 19.64 N

	R 37,2962 - R 45,1284	Request the lead time here	7.56 N 7.56 N	4.5 in 114.3 mm	Carbon Steel	83.63 N 83.63 N

	R 56,4252 - R 68,2745	Request the lead time here	12.32 N 12.32 N	4 in 101.6 mm	Carbon Steel	137.09 N 137.09 N