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
	R 30,782 - R 37,2463	Request the lead time here	3.65 N 3.65 N	2.752 in 69.9 mm	Carbon Steel	40.30 N 40.30 N

	R 30,4861 - R 36,8881	Request the lead time here	6.23 N 6.23 N	2 in 50.8 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	1.752 in 44.5 mm	Carbon Steel	19.57 N 19.57 N

10335147		Request the lead time here	1.78 N 1.78 N	4.5 in 114.3 mm	Carbon Steel	19.57 N 19.57 N

	R 35,4172 - R 42,8548	Request the lead time here	7.56 N 7.56 N	2.5 in 63.5 mm	Carbon Steel	83.63 N 83.63 N

	R 50,2415 - R 60,7923	Request the lead time here	12.32 N 12.32 N	2.252 in 57.2 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 in 50.8 mm	Carbon Steel	309.98 N 309.98 N

	R 59,2415 - R 71,6822	Request the lead time here	27.89 N 27.89 N	5 in 127.0 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	1.252 in 31.8 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	0.622 in 15.8 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	1.752 in 44.5 mm	Stainless Steel	19.64 N 19.64 N

	R 42,1679 - R 51,0231	Request the lead time here	1.85 N 1.85 N	4.5 in 114.3 mm	Stainless Steel	19.64 N 19.64 N

	R 40,4102 - R 48,8963	Request the lead time here	3.04 N 3.04 N	2 in 50.8 mm	Stainless Steel	33.57 N 33.57 N

	R 40,4102 - R 48,8963	Request the lead time here	5.19 N 5.19 N	1.37 in 34.8 mm	Stainless Steel	58.54 N 58.54 N

	R 40,4486 - R 48,9428	Request the lead time here	1.48 N 1.48 N	1.252 in 31.8 mm	Stainless Steel	16.30 N 16.30 N

	R 40,4486 - R 48,9428	Request the lead time here	1.48 N 1.48 N	3 in 76.2 mm	Stainless Steel	16.30 N 16.30 N

		Request the lead time here	6.30 N 6.30 N	1.752 in 44.5 mm	Stainless Steel	69.66 N 69.66 N

	R 50,2032 - R 60,7458	Request the lead time here	6.30 N 6.30 N	4.5 in 114.3 mm	Stainless Steel	69.66 N 69.66 N

	R 82,9354 - R 100,3518	Request the lead time here	10.28 N 10.28 N	4 in 101.6 mm	Stainless Steel	114.19 N 114.19 N

	R 78,785 - R 95,3298	Request the lead time here	23.22 N 23.22 N	3.5 in 88.9 mm	Stainless Steel	258.22 N 258.22 N