Acid Protection Boots | McMaster-Carr

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34 Products

Tapered Round Bellows with Cuff End and Flange End

Attach the cuff end with a hose clamp (not included), and screw mount the flange end. Also known as boots, these bellows are often used on CV joints. All are molded, which means they're airtight to keep contaminants out. Air venting may be necessary in fast-cycling applications. Slide these bellows over moving parts, such as rods and shafts.

0.04" to 0.07" Thick Material—0.04″-0.07″ thick bellows are more durable than 0.02″-0.04″ thick bellows, making them good for applications where parts are constantly moving.

	ID			Lg.
	Cuff	Flange	OD	Extended	Retracted	Travel	Cuff Lg.	Material	Temp. Range, ° F	Mounting Fasteners Included		Each
Protects Against Abrasive Grit, Acid, Cutting Fluid, Dust, Metal Chips, Oil, Salt Water, Synthetic Oil, Water, and Wood Chips







				0.02" to 0.04" Thick Material

				3/8"	2"	2 1/2"	1 3/4"	1/2"	1 1/4"	3/8"	Neoprene	0 to 220	No	9744K19	000000


				1/2"	1 1/4"	1 3/4"	5 1/2"	1 5/16"	4 3/16"	1/4"	Neoprene	0 to 220	No	9744K12	00000
				1"	3 1/2"	4 3/4"	6"	1 1/2"	4 1/2"	1"	Neoprene	0 to 220	No	9744K17	00000




						0.04" to 0.07" Thick Material

						3/8"	2"	3 1/4"	1 3/4"	1/2"	1 1/4"	3/8"	Neoprene	0 to 220	No	9744K21	00000


						1/2"	1 1/4"	2"	5 1/2"	1 5/16"	4 3/16"	1/4"	Neoprene	0 to 220	No	9744K22	00000
						1"	3 1/2"	4 1/2"	6"	1 1/2"	4 1/2"	1"	Neoprene	0 to 220	No	9744K23	00000

Light Duty Round Bellows with Cuff Ends

Thinner than other round bellows with cuff ends, these flexible bellows are meant for light duty applications. All are molded, which means they're airtight to keep contaminants out. Air venting may be necessary in fast-cycling applications. Slide these bellows over moving parts, such as rods and shafts, then secure the cuff ends with hose clamps (not included).

			Lg.
	ID	OD	Extended	Retracted	Travel	Req. ID Clearance	Cuff Lg.	Material	Material Thk.	Temp. Range, ° F		Each
Protects Against Abrasive Grit, Acid, Cutting Fluid, Dust, Metal Chips, Oil, Salt Water, Synthetic Oil, Water, and Wood Chips



		1/4"	5/8"	11"	2 3/4"	8 1/4"	3/8"	1/2"	Neoprene	0.02"	0 to 220	5298K21	000000


		1/4" × 7/16"	7/8"	5 1/2"	1 1/8"	3 3/8"	3/8"	1/2"	Neoprene	0.02"	0 to 220	5298K76	00000
		5/16" × 5/8"	3/4"	1 1/2"	5/16"	13/16"	3/8"	1/8"	Neoprene	0.02"	0 to 220	5298K77	00000
		1/2"	1 1/8"	11"	2 3/4"	8 1/4"	3/8"	1/2"	Neoprene	0.02"	0 to 220	5298K22	00000
		5/8"	1 1/16"	2 1/4"	9/16"	1 11/16"	3/8"	5/16"	Neoprene	0.02"	0 to 220	5298K23	00000
		3/4"	1 5/8"	10 1/2"	2 5/8"	7 7/8"	3/8"	3/4"	Neoprene	0.02"	0 to 220	5298K85	00000
		1"	2 1/8"	10"	2 1/2"	7 1/2"	3/8"	1"	Neoprene	0.02"	0 to 220	5298K24	00000
		1 1/4"	2 3/8"	10"	2 1/2"	7 1/2"	3/8"	1"	Neoprene	0.02"	0 to 220	5298K25	00000
		1 1/2"	1 3/4"	6 5/8"	1 3/4"	5 1/4"	3/8"	3/4"	Neoprene	0.02"	0 to 220	5298K26	00000
		1 1/2"	2 5/8"	10"	2 1/2"	7 1/2"	3/8"	1 1/2"	Neoprene	0.02"	0 to 220	5298K27	00000
		1 3/4"	2 7/8"	9"	2 1/4"	6 3/4"	3/8"	1 1/2"	Neoprene	0.02"	0 to 220	5298K28	00000


		2"	3 1/8"	9"	2 1/4"	6 3/4"	3/8"	1 1/2"	Neoprene	0.02"	0 to 220	5298K29	00000
		2 1/2"	3 7/8"	9"	2 1/4"	6 3/4"	3/8"	1 1/2"	Neoprene	0.02"	0 to 220	5298K71	00000
		3"	4 5/8"	9"	2 1/4"	6 3/4"	3/8"	1 1/2"	Neoprene	0.02"	0 to 220	5298K72	00000
		4"	5 5/8"	9"	2 1/4"	6 3/4"	3/8"	1 1/2"	Neoprene	0.02"	0 to 220	5298K73	00000
		6"	8 1/8"	8"	2"	6"	3/8"	2"	Neoprene	0.02"	0 to 220	5298K74	000000
		8"	10 1/8"	8"	2"	6"	3/8"	2"	Neoprene	0.02"	0 to 220	5298K75	000000

Round Bellows with Cuff End and Flange End

Attach the cuff end with a hose clamp (not included), and screw mount the flange end. These molded bellows are airtight to keep contaminants out. Air venting may be necessary in fast-cycling applications. Slide these bellows over moving parts, such as rods and shafts.

	ID			Lg.
	Cuff	Flange	OD	Extended	Retracted	Travel	Req. ID Clearance	Cuff Lg.	Material	Material Thk.	Temp. Range, ° F	Mounting Fasteners Included		Each
Protects Against Abrasive Grit, Acid, Cutting Fluid, Dust, Metal Chips, Oil, Salt Water, Synthetic Oil, Water, and Wood Chips



		5/16"	1"	1"	2 1/2"	5/8"	1 7/8"	3/8"	3/8"	Neoprene	0.03"	0 to 220	No	5298K78	000000


		1/2"	11/16"	1 1/16"	1 1/4"	11/16"	9/16"	3/8"	1/2"	Neoprene	0.03"	0 to 220	No	5298K79	00000
		1/2"	1 1/2"	2 1/4"	1 1/2"	3/8"	1 1/8"	3/8"	3/4"	Neoprene	0.03"	0 to 220	No	5298K82	00000
		3/4"	15/16"	1 5/8"	1 1/4"	13/16"	7/16"	3/8"	3/4"	Neoprene	0.03"	0 to 220	No	5298K81	00000
		1 1/4"	1 3/4"	3"	8"	2"	6"	3/8"	1"	Neoprene	0.03"	0 to 220	No	5298K84	00000
		1 1/4"	1 3/4"	3"	10"	2 1/2"	7 1/2"	3/8"	1"	Neoprene	0.03"	0 to 220	No	5298K83	00000

Tapered Rectangular Bellows with Cuff End and Flange End

	Flange				Lg.
	Inside Ht.	Inside Wd.	Outside Ht.	Outside Wd.	Extended	Retracted	Travel	Cuff Lg.	Material	Material Thk.	Temp. Range, ° F	Max. Temp., ° F	Mounting Fasteners Included		Each
Protects Against Abrasive Grit, Acid, Cutting Fluid, Dust, Metal Chips, Oil, Salt Water, Synthetic Oil, Water, and Wood Chips







				1/8" Cuff ID

				1 3/8"	1 3/8"	2"	2 5/8"	2 1/2"	5/8"	1 7/8"	1/2"	Neoprene	0.02" to 0.04"	0 to 220	220	No	9744K16	000000

Tapered Round Bellows with Cuff Ends

Secure the cuff ends with hose clamps (not included). Also known as boots, these rubber bellows are often used on CV joints. All are molded, which means they're airtight to keep contaminants out. Air venting may be necessary in fast-cycling applications. Slide these bellows over moving parts, such as rods and shafts.

	Lg.
	Extended	Retracted	Travel	Cuff Lg.	Material	Material Thk.	Temp. Range, ° F	Max. Temp., ° F		Each
Protects Against Abrasive Grit, Acid, Cutting Fluid, Dust, Metal Chips, Oil, Salt Water, Synthetic Oil, Water, and Wood Chips







				1 3/4" × 3 1/2" ID, 4 1/8" OD

				2 1/2"	5/8"	1 7/8"	1"	Neoprene	0.02" to 0.04"	0 to 220	220	9744K18	000000




						1 3/4" × 4 1/2" ID, 4 5/8" OD

						7 1/8"	1 7/8"	5 1/4"	1/2" × 3/8"	Neoprene	0.02" to 0.04"	0 to 220	220	9744K13	00000

High-Temperature Flat Bellows

These bellows withstand temperatures up to 500° F—more than twice as much as standard flat bellows. Use them to guard flat moving surfaces on machinery. Sewn seams let these bellows breathe, so they retract quickly in fast-cycling applications. The seams will allow small amounts of moisture and dust to pass through.

	Lg.
	Extended, ft.	Retracted	Travel	Material	Material Thk.	Max. Temp., ° F	Mounting Fasteners Included		Each
Protects Against Abrasive Grit, Acid, Coolant, Cutting Fluid, Dust, Hydraulic Fluid, Metal Chips, Solvents, Sparks, Synthetic Oil, Welding Spatter, and Wood Chips







				9/16" Outside Ht. × 12" Outside Wd.

				1	1"	11 3/8"	PTFE-Coated Fiberglass Fabric	0.01"	500	No	2437N11	0000000


				2	1 15/16"	22 1/16"	PTFE-Coated Fiberglass Fabric	0.01"	500	No	2437N12	000000