Buffering Seals | McMaster-Carr

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22 Products

High-Pressure Hydraulic Cylinder Buffering Seals


Side 1	Side 2	Profile

Rated for pressure up to 10,000 psi, these seals withstand the highest pressure of our buffering seals. Use in tandem with rod seals to protect the cylinder from pressure spikes and shock.

Note: Maximum performance values cannot be achieved simultaneously; for example, speed is affected by pressure, temperature, and other operating conditions.

		For Groove
	For Rod Dia.	Dia.	Wd.	Max. Speed, ft/sec	Max. Pressure, psi	Temp. Range, ° F	Hardness	Color	Backup Ring Color		Each
Polyurethane Rubber with Nylon Backup Ring



		1/2"	0.750"	0.206"	1.6	10,000	-65 to 250	Durometer 90A (Hard)	Beige	Gray	2008N32	00000


		3/4"	1.125"	0.206"	1.6	10,000	-65 to 250	Durometer 90A (Hard)	Beige	Gray	2008N33	00000
		1"	1.375"	0.206"	1.6	10,000	-65 to 250	Durometer 90A (Hard)	Beige	Gray	2008N34	00000
		1 1/8"	1.500"	0.206"	1.6	10,000	-65 to 250	Durometer 90A (Hard)	Beige	Gray	2008N35	00000
		1 1/4"	1.625"	0.206"	1.6	10,000	-65 to 250	Durometer 90A (Hard)	Beige	Gray	2008N36	00000
		1 3/8"	1.750"	0.206"	1.6	10,000	-65 to 250	Durometer 90A (Hard)	Beige	Gray	2008N37	00000
		1 1/2"	2.000"	0.275"	1.6	10,000	-65 to 250	Durometer 90A (Hard)	Beige	Gray	2008N38	00000
		1 3/4"	2.250"	0.275"	1.6	10,000	-65 to 250	Durometer 90A (Hard)	Beige	Gray	2008N39	00000
		1 7/8"	2.375"	0.275"	1.6	10,000	-65 to 250	Durometer 90A (Hard)	Beige	Gray	2008N41	00000
		2"	2.500"	0.275"	1.6	10,000	-65 to 250	Durometer 90A (Hard)	Beige	Gray	2008N42	00000
		2 1/2"	3.000"	0.275"	1.6	10,000	-65 to 250	Durometer 90A (Hard)	Beige	Gray	2008N43	00000


		2 3/4"	3.250"	0.275"	1.6	10,000	-65 to 250	Durometer 90A (Hard)	Beige	Gray	2008N44	00000
		3"	3.500"	0.275"	1.6	10,000	-65 to 250	Durometer 90A (Hard)	Beige	Gray	2008N45	00000

High-Speed Hydraulic Cylinder Buffering Seals


Side 1	Side 2	Profile

PTFE gives these seals a slippery surface that facilitates rod speeds over seven times faster than our other buffering seals. Use them in tandem with rod seals to protect the cylinder from pressure spikes and shock.

Note: Maximum performance values cannot be achieved simultaneously; for example, speed is affected by pressure, temperature, and other operating conditions.

		For Groove
	For Rod Dia.	Dia.	Wd.	Max. Speed, ft/sec	Max. Pressure, psi	Temp. Range, ° F	Hardness	Color	O-Ring Hardness	O-Ring Color		Each
Bronze-Filled PTFE with Buna-N O-Ring



		5/8"	0.912"	0.126"	12	5,000	-30 to 230	Durometer 60D (Extra Hard)	Brown	Durometer 70A (Hard)	Black	1415N85	00000


		1"	1.287"	0.126"	12	5,000	-30 to 230	Durometer 60D (Extra Hard)	Brown	Durometer 70A (Hard)	Black	1415N86	0000
		1 1/4"	1.537"	0.126"	12	5,000	-30 to 230	Durometer 60D (Extra Hard)	Brown	Durometer 70A (Hard)	Black	1415N87	0000
		1 1/4"	1.671"	0.165"	12	5,000	-30 to 230	Durometer 60D (Extra Hard)	Brown	Durometer 70A (Hard)	Black	1415N88	0000
		1 1/2"	1.787"	0.126"	12	5,000	-30 to 230	Durometer 60D (Extra Hard)	Brown	Durometer 70A (Hard)	Black	1415N89	0000
		1 3/4"	2.171"	0.165"	12	5,000	-30 to 230	Durometer 60D (Extra Hard)	Brown	Durometer 70A (Hard)	Black	1415N91	0000
		2"	2.421"	0.165"	12	5,000	-30 to 230	Durometer 60D (Extra Hard)	Brown	Durometer 70A (Hard)	Black	1415N92	0000
		2 1/2"	3.094"	0.248"	12	5,000	-30 to 230	Durometer 60D (Extra Hard)	Brown	Durometer 70A (Hard)	Black	1415N95	0000
		3"	3.594"	0.248"	12	5,000	-30 to 230	Durometer 60D (Extra Hard)	Brown	Durometer 70A (Hard)	Black	1415N96	00000