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SRA Backup Rings

SRI Backup Rings

1 - 30 of 648 results

Item no.	Width (t)	Thickness (b)	Material	Design	Stock	Price
97732	1.5	5.1	PTFE		?	€ 52,88	Details	Quotation
49312424	1.5	5.1	PTFE		135	On request	Details	Quotation
49373751	1	2.6	PTFE		?	On request	Details	Quotation
49349612	1.4	3.2	PTFE		339	On request	Details	Quotation
49346793	2	3.95	POM		100	On request	Details	Quotation
49337573	4	3.95	POM		250	On request	Details	Quotation
49325419	1.5	3.96	PTFE		?	On request	Details	Quotation
354473	1	1.45	PTFE		?	On request	Details	Quotation
11044658			PTFE	SRI U	468	€ 27,83	Details
11041741			PTFE	SRI U	74	€ 89,74	Details
49312162			PTFE	SRI U	30	€ 89,74	Details
49307527			PTFE	SRI U	?	€ 102,12	Details	Quotation
24921269			PTFE	SRI U	30	€ 27,83	Details
11038205			PTFE	SRI U	8	€ 27,83	Details
49300381			PTFE	SRI U	1007	€ 27,83	Details
11042223			PTFE	SRI U	1090	€ 27,83	Details
49300102			PTFE	SRI U	100	€ 167,09	Details
11040654			PTFE	SRI U	200	€ 27,83	Details
11044581			PTFE	SRI U	47	€ 27,83	Details
11044536			PTFE	SRI U	1147	€ 30,94	Details
49300365			PTFE	SRI U	259	€ 30,94	Details
11039834			PTFE	SRI U	?	€ 30,94	Details	Quotation
24920961			PTFE	SRI U	94	€ 30,94	Details
24920496			PTFE	SRI U	20	€ 30,94	Details
49300244			PTFE	SRI U	10	€ 34,05	Details
11045040			PTFE	SRI U	140	€ 34,05	Details
24920044			PTFE	SRI U	19	€ 43,32	Details
11041833			PTFE	SRI U	10	€ 43,32	Details
49307534			PTFE	SRI U	6	€ 46,42	Details
49313011			PTFE	SRI U	1	€ 46,42	Details

Compare

Backup Rings in combination with O-rings

Backup rings are a perfect complement in use with O-rings, they serve as a protection of O-rings for a longer life. They also ensure that the O-rings retain their round shape even at high pressures and thus withstand even high pressure loads without damage. This is done by mounting the ring behind the O-ring on the low pressure side under a one-sided pressure load. In situations with changing pressure directions, we recommend the use of two backup rings, used on both sides of the O-ring.

Discover the benefits of Backup rings: Protection and support for O-rings

Backup rings themselves have no sealing function, but are used in conjunction with O-rings to protect them from damage. They provide a high level of protection against damage to O-rings. For example, they serve as a supporting element to prevent gaps between radical seals and O-rings. Back Rings are widely used in hydraulics, for example in hydraulic valves and hydraulic pumps. They also provide exceptionally reliable sealing of ball valves or cylinder bottoms and heads as required in general industrial applications.

Extreme temperature resistance: Discover the durable PTFE backup rings

Most backup rings are made of PTFE and can therefore easily withstand extreme temperatures from -200 °C to 260 °C. In addition, there are elastomer Back Rings that can be stretched and thus easily mounted in installation grooves. Freudenberg guarantees the highest quality, durability and the best materials.

The range of Backup Rings

The complete range including product and material information sheets, ordering options, prices and availability can be found on our website.

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Backup Rings

Backup Rings in combination with O-rings

Discover the benefits of Backup rings: Protection and support for O-rings

Extreme temperature resistance: Discover the durable PTFE backup rings

The range of Backup Rings

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