Seals for 1 1/2" Shafts | McMaster-Carr

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Seal OD

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Diluted Salt Solutions

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Color

Maximum Temperature

Rotation Speed

2,000 rpm to 2,999 rpm

3,000 rpm to 9,999 rpm

10,000 rpm to 19,999 rpm

Hardness Rating

Maximum Pressure

Spring Material

Case Material

Diaphragm Material

Viton® Fluoroelastomer

U.S.–Mexico–Canada Agreement (USMCA) Qualifying

Yes

Manufacturer/Brand Equivalent

Sealol Type 43 CE Long

Sealol Type 43 CE Short

Sealol Type 43 CU Short

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Exempt

Export Control Classification Number (ECCN)

EAR99

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47 Products

Spring-Loaded Rotary Shaft Seals with Wiper Lip


Side 1	Side 2	Profile

Used to retain oil on rotating shafts in motors, pumps, bearings, and gearboxes, these seals have a secondary lip that blocks contaminants. Also known as oil seals, a spring secures the lip against the shaft, preventing messy leaks. Press-fit seals into the bore around the shaft. Seals with a maximum pressure of 50 psi should be secured with a retaining ring.

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

Acrylic-Coated Case—Seals with an acrylic-coated case have a coating that compensates for surface imperfections in the housing bore for a tight seal on the OD.

		Seal			For Bore							Case
	For Shaft Dia.	ID	OD	Wd.	Dia.	Min.Wd.	Max. Rotation Speed, rpm	Max. Pressure, psi	Temp. Range, ° F	Hardness	Color	Finish	Color	Specs. Met		Each
Buna-N with Steel Case and Steel Spring



		1 1/2"	1.500"	1.983"	0.250"	1.983"	0.266"	3,300	10	-40 to 210	Durometer 80A (Hard)	Black	Acrylic Coated	Green	DIN 3760, ISO 6194	5154T842	00000


		1 1/2"	1.500"	2.125"	0.313"	2.125"	0.329"	3,300	10	-40 to 210	Durometer 80A (Hard)	Black	Acrylic Coated	Green	DIN 3760, ISO 6194	5154T159	00000
		1 1/2"	1.500"	2.328"	0.500"	2.328"	0.516"	3,300	50	-40 to 210	Durometer 80A (Hard)	Black	Acrylic Coated	Green	DIN 3760, ISO 6194	5154T95	00000

Rotary Shaft Seals for Grease


Side 1	Side 2	Profile

Also known as grease seals, these are designed to retain thick lubricant at low pressure in motors, pumps, bearings, and gearboxes. They have a light grip on the shaft that creates less friction than spring-loaded seals. Press-fit seals into the bore around the shaft.

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

Acrylic-Coated Case—Seals with an acrylic-coated case have a coating that compensates for surface imperfections in the housing bore for a tight seal on the OD.

		Seal			For Bore							Case
	For Shaft Dia.	ID	OD	Wd.	Dia.	Min.Wd.	Max. Rotation Speed, rpm	Max. Pressure, psi	Temp. Range, ° F	Hardness	Color	Finish	Color	Specs. Met		Each
Buna-N with Steel Case



		1 1/2"	1.500"	1.875"	0.250"	1.875"	0.266"	3,300	10	-40 to 210	Durometer 75A (Hard)	Black	Acrylic Coated	Green	DIN 3760, ISO 6194	5154T85	000000


		1 1/2"	1.500"	2.000"	0.250"	2.000"	0.266"	3,300	10	-40 to 210	Durometer 75A (Hard)	Black	Acrylic Coated	Green	DIN 3760, ISO 6194	5154T86	00000

Heavy Duty Shaft-Mounted Rotary Shaft Seals


Side 1	Side 2	Profile

These seals are fluoroelastomer, so they have excellent chemical resistance and withstand temperatures up to 390° F. Also known as V-rings and flingers, they protect shaft bearings by blocking dust and other contaminants while retaining lubricant. To install, stretch the seal over your shaft and press it firmly against the face plate.

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

	For Shaft			Seal
	Dia.	Dia. Range	For Faceplate Dia.	ID	OD	Wd.	Max. Rotation Speed, rpm	Max. Pressure, psi	Temp. Range, ° F	Hardness	Color		Each
Fluoroelastomer



		1 1/2", 1 5/8"	1.496" to 1.693"	2.087" to 2.283"	1.417"	1.811"	0.354"	4,200	5	5 to 390	Durometer 60A (Medium)	Brown	1670N22	000000

Spring-Loaded Rotary Shaft Seals


Side 1	Side 2	Profile

Also known as oil seals, use these to retain oil on rotating shafts in motors, pumps, bearings, and gearboxes. A spring secures the lip against the shaft, preventing messy leaks. Press-fit seals into the bore around the shaft. Seals with a maximum pressure of 50 psi should be secured with a retaining ring.

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

Acrylic-Coated Case—Seals with an acrylic-coated case have a coating that compensates for surface imperfections in the housing bore for a tight seal on the OD.

		Seal			For Bore							Case
	For Shaft Dia.	ID	OD	Wd.	Dia.	Min.Wd.	Max. Rotation Speed, rpm	Max. Pressure, psi	Temp. Range, ° F	Hardness	Color	Finish	Color	Specs. Met		Each
Buna-N with Steel Case and Steel Spring



		1 1/2"	1.500"	2.000"	0.313"	2.000"	0.329"	3,300	10	-40 to 210	Durometer 75A (Hard)	Black	Acrylic Coated	Green	DIN 3760, ISO 6194	5154T305	000000

Shaft-Mounted Rotary Shaft Seals


Side 1	Side 2	Profile

Also known as V-rings and flingers, these seals protect shaft bearings by blocking dust and other contaminants while retaining lubricant. They’re Buna-N for excellent resistance to oil and grease. To install, stretch the seal over your shaft and press it firmly against the faceplate. The Seal OD and Seal Width listed are the dimensions of the seal after it is installed.

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

	For Shaft			Seal
	Dia.	Dia. Range	For Faceplate Dia.	ID	OD	Wd.	Max. Rotation Speed, rpm	Max. Pressure, psi	Temp. Range, ° F	Hardness	Color		Each
Buna-N



		1 1/2"	1.500" to 1.700"	2.100" to 2.300"	1.380"	2.109"	0.375"	4,300	100	-20 to 225	Durometer 85A (Hard)	Black	9562K48	00000

Spring-Loaded Rotary Shaft Seals for Misaligned Shafts


Side 1	Side 2	Profile

Designed with an extended lip, these seals have the flexibility to accommodate shaft misalignment up to 0.125". Also known as clipper seals, they retain oil on rotating shafts in motors, pumps, bearings, and gearboxes. A spring secures the lip to prevent leaks. Press-fit seals into the housing bore around the shaft; they fit tight for installation without a cover plate.

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

		Seal			For Bore
	For Shaft Dia.	ID	OD	Wd.	Dia.	Min.Wd.	Max. Rotation Speed, rpm	Max. Pressure, psi	Temp. Range, ° F	Hardness	Color	Case Color		Each
Buna-N with Aramid Case and Stainless Steel Spring



		1 1/2"	1.530"	2.755"	0.500"	2.750"	0.500"	2,500	7	-20 to 250	Durometer 75A (Hard)	Black	Black	1885N12	000000

High-Speed Rotary Shaft Seals


Side 1	Side 2	Profile

A slippery PTFE surface allows these seals to function at speeds at least 25% faster than other rotary shaft seals. Also known as oil seals, use these to retain oil on rotating shafts in motors, pumps, bearings, and gearboxes. An O-ring secures the lips to prevent leaks, while sealing against the housing. Press-fit seals into the bore around the shaft.

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

		Seal			For Bore							O-Ring
	For Shaft Dia.	ID	OD	Wd.	Dia.	Min.Wd.	Max. Rotation Speed, rpm	Max. Pressure, psi	Temp. Range, ° F	Hardness	Color	Hardness	Color		Each
Graphite Filled PTFE with Buna-N O-Ring



		1 1/2"	1.500"	2.000"	0.313"	2.000"	0.323"	12,700	150	-40 to 250	Durometer 60D (Extra Hard)	Black	Durometer 70A (Hard)	Black	2122N17	000000

Heavy Duty Mechanical Pump Shaft Seals

Multiple internal springs ensure these seals keep the sealing surfaces in contact in demanding applications, such as agricultural, chemical, and mining pumps. Seals come furnished as two pieces—the seal and the seat. The seal is comprised of the case, springs, diaphragm, and washer, and the seat is comprised of the seat and the gasket. Seal Width represents the working height, which is the compressed length when installed.

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

Cannot Be Sold Outside North America—Products cannot be sold outside North America due to restrictions.

			Seal			Seat			Material
	For Shaft Dia.	Mfr./Brand Equiv.	ID	OD	Wd.	ID	OD	Wd.	Washer	Seat	Max. Pressure, psi	Cannot Be Sold To		Each
316 Stainless Steel Case and 316 Stainless Steel Spring with Viton® Fluoroelastomer Diaphragm and Viton® Fluoroelastomer Gasket



		1 1/2"	John Crane Type 8T Pac-Seal Type 8T	1.500"	1.937"	1.125"	1.546"	2.125"	0.437"	Carbon	Silicon Carbide	300	Outside North America	1563N16	000000000

Split Rotary Shaft Seals


Side 1	Side 2	Profile

Replace old seals without disassembling components—these seals come split for easy installation. Also known as clipper seals, they retain oil on rotating shafts in motors, pumps, bearings, and gearboxes. A spring secures the lip to prevent leaks; fasten the hook and eye closure to secure. Press-fit seals into the housing bore; they fit tight for installation without a cover plate.

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

		Seal			For Bore
	For Shaft Dia.	ID	OD	Wd.	Dia.	Min.Wd.	Max. Rotation Speed, rpm	Max. Pressure	Temp. Range, ° F	Hardness	Color	Case Color		Each
Buna-N with Aramid Case and Stainless Steel Spring



		1 1/2"	1.500"	2.250"	0.375"	2.250"	0.375"	5,100	Not Rated	-20 to 250	Durometer 75A (Hard)	Black	Black	1651N17	000000

Mechanical Pump Shaft Seals with Extended Spring

Seal with Conical

Spring

Seal with Retainer

and Straight Spring

For use in waste water, boiler feed, and compressor pumps, these seals have an extra-long spring that accommodates variations in seal cavity length. They come furnished as two pieces—the seal and the seat. The seal is comprised of the case, spring, diaphragm, and washer, which come locked together as one piece. Seal Width represents the working height, which is the compressed length when installed. The seat is comprised of the seat and the gasket.

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

Buna-N Diaphragm—Buna-N diaphragms resist grease and a wide range of oils.

EPDM Diaphragm—EPDM diaphragms are more resistant to water and steam than Buna-N and Viton® fluoroelastomer, but aren’t as resistant to oils and chemicals.

Viton® Fluoroelastomer Diaphragm—Viton® fluoroelastomer diaphragms resist a wider range of chemicals than Buna-N.

Buna-N Gasket—Buna-N gaskets resist grease and a wide range of oils.

Viton® Fluoroelastomer Gasket—Viton® fluoroelastomer gaskets resist a wider range of chemicals than Buna-N.

Carbon Washer—Carbon washers are for use with clean liquids.

Silicon Carbide Washer—Silicon carbide washers have a hard surface that resists scratching, so they can be used with liquids that contain abrasives.

Cannot Be Sold Outside North America—Products cannot be sold outside North America due to restrictions.

				Seal			Seat			Material
	For Shaft Dia.	Mfr. Equiv. No.	Mfr./Brand Equiv.	ID	OD	Wd.	ID	OD	Wd.	Washer	Seat	Spring Shape	Includes	Max. Pressure, psi	Cannot Be Sold To		Each
304 Stainless Steel Case and 304 Stainless Steel Spring with Buna-N Diaphragm and Buna-N Gasket



		1 1/2"	758	John Crane Type 21 Pac-Seal Type 21 Pac-Seal Type 31 Sealol Type 43 CE Short Sealol Type 43 CU Short	1.500"	2.124"	1.125"	1.546"	2.125"	0.437"	Carbon	Ceramic	Straight	Spring Retainer	250	Outside North America	9281K421	000000


		304 Stainless Steel Case and 304 Stainless Steel Spring with Viton® Fluoroelastomer Diaphragm and Viton® Fluoroelastomer Gasket



				1 1/2"	758V	John Crane Type 21 Pac-Seal Type 21 Pac-Seal Type 31 Sealol Type 43 CE Short Sealol Type 43 CU Short	1.500"	2.124"	1.125"	1.546"	2.125"	0.437"	Carbon	Ceramic	Straight	Spring Retainer	250	Outside North America	9281K77	00000


				1 1/2"	758VSC	John Crane Type 21 Pac-Seal Type 21 Pac-Seal Type 31 Sealol Type 43 CE Short Sealol Type 43 CU Short	1.500"	2.124"	1.125"	1.546"	2.125"	0.437"	Silicon Carbide	Silicon Carbide	Straight	Spring Retainer	250	Outside North America	9281K247	000000
				1 1/2"	11558V	John Crane Type 21 Pac-Seal Type 21 Pac-Seal Type 31 Sealol Type 43 CE Short Sealol Type 43 CU Short	1.500"	2.320"	1.093"	1.546"	2.125"	0.437"	Carbon	Ceramic	Cone	—	250	Outside North America	9281K78	00000


				304 Stainless Steel Case and 304 Stainless Steel Spring with EPDM Diaphragm and EPDM Gasket



						1 1/2"	758E	John Crane Type 21 Pac-Seal Type 21 Pac-Seal Type 31 Sealol Type 43 CE Short Sealol Type 43 CU Short	1.500"	2.124"	1.125"	1.546"	2.125"	0.437"	Carbon	Ceramic	Straight	Spring Retainer	250	Outside North America	9281K238	00000

Narrow-Profile Mechanical Pump Shaft Seals with Extended Spring

With a smaller seal OD than standard seals, these seals have an extended spring that accommodates variations in seal cavity length. They're used in waste water, boiler feed, and compressor pumps. Seals come furnished as two pieces—the seal and the seat. The seal is comprised of the case, spring, diaphragm, and washer, which come locked together as one piece. Seal Width represents the working height, which is the compressed length when installed. The seat is comprised of the seat and the gasket.

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

Cannot Be Sold Outside North America—Products cannot be sold outside North America due to restrictions.

				Seal			Seat			Material
	For Shaft Dia.	Mfr. Equiv. No.	Mfr./Brand Equiv.	ID	OD	Wd.	ID	OD	Wd.	Washer	Seat	Max. Pressure, psi	Cannot Be Sold To		Each
316 Stainless Steel Case and 316 Stainless Steel Spring with Buna-N Diaphragm and Buna-N Gasket



		1 1/2"	305	John Crane Type 1 Pac-Seal Type 51 Sealol Type 43 CE Long	1.500"	1.949"	1.687"	1.546"	2.125"	0.437"	Carbon	Ceramic	150	Outside North America	9281K429	000000

Cartridge Mechanical Shaft Seals

Install these seals faster and with less technical expertise than other mechanical shaft seals that come in two pieces. They come with their seal and seat already assembled. All have a carbon washer that is self-lubricating. However, this means their washer is too soft to be used with abrasive liquids and liquids with harsh additives.

Fluoroelastomer Diaphragm—Seals with a fluoroelastomer diaphragm can be used with a wider range of chemicals than EPDM diaphragms, including benzene, butyl alcohol, and fuels.

EPDM Diaphragm—Seals with an EPDM diaphragm won’t break down from exposure to water and steam. However, they are for use with fewer chemicals.

		Seal				Fluoroelastomer Diaphragm		EPDM Diaphragm
	For Shaft Dia.	ID	OD	Wd.	Max. Pressure, psi		Each		Each
316 Stainless Steel Case and C276 Nickel Spring with PTFE Gasket



		1 1/2"	1.5"	3.437"	2.815"	220	4887N15	000000000	4887N39	000000000

Screw Conveyors

Add on to an existing screw conveyor or keep it running like new.

Screws

Screws are designed for right-hand operation. Screws with a thicker edge offer longer service life for abrasive materials.

	Lg.	Edge Thk.	Shaft Dia.	Pitch		Each
Steel



	6"	118"	1/16"	1 1/2"	6"	5866K21	0000000


	9"	118"	3/16"	1 1/2"	9"	5866K24	000000


	Stainless Steel



			6"	118"	—	1 1/2"	6"	5866K881	00000000


			9"	118"	—	1 1/2"	9"	5866K882	00000000

Discharge Spouts

Discharge spouts can be welded to a cutout in the trough.

	For Shaft Dia.		Each
Stainless Steel



	6"	1 1/2"	5866K923	0000000

Coupling Shafts

Coupling shafts connect two screws together.

		Each
Steel



	1 1/2"	5866K35	000000


	Stainless Steel



			1 1/2"	5866K914	000000

End Shafts

End shafts support the end conveyor section.

		Each
Steel



	1 1/2"	5866K51	000000


	Stainless Steel



			1 1/2"	5866K918	000000

Coupling Bolts

Coupling bolts connect shafts to the screw.

	Pkg. Qty.		Pkg.
Steel



	1 1/2"	4	5866K37	000000


	Stainless Steel



			1 1/2"	1	5866K928	00000

End-Shaft Seals

End-shaft seals prevent material contamination and discharge.

		Each
Steel



	1 1/2"	5866K72	0000000


	Stainless Steel



			1 1/2"	5866K935	000000

End-Shaft Bearings

End-shaft bearings support the end of the shaft and help the screw rotate.

		Each
Steel



	1 1/2"	5914K51	0000000

Trough Ends

	For Shaft Dia.		Each
Steel



	6"	1 1/2"	5866K11	0000000


	9"	1 1/2"	5866K12	000000


	Stainless Steel



			6"	1 1/2"	5866K898	000000


			9"	1 1/2"	5866K899	000000

Bearing Hangers

Bearing hangers mount inside the trough.

	For Shaft Dia.		Each
Steel



	6"	1 1/2"	5866K31	0000000


	9"	1 1/2"	5866K32	000000


	Stainless Steel



			6"	1 1/2"	5866K893	000000


			9"	1 1/2"	5866K894	000000

Bearings

Hardwood—Hardwood bearings are oil impregnated and are often used in agricultural applications.

Iron—Iron bearings are oil impregnated and offer longer life for abrasive materials.

Bronze—Bronze bearings are oil impregnated.

UHMW Polyethylene—UHMW bearings work well with chemicals and wet environments.

	For Shaft Dia.	Max. Temp., ° F		Each
Hardwood



	6", 9"	1 1/2"	—	5914K44	000000


	UHMW Polyethylene (FDA Compliant 21 CFR 177.1520)



			6", 9"	1 1/2"	—	5914K47	00000


			Iron



					6", 9"	1 1/2"	—	5914K71	00000


					Bronze



							6", 9"	1 1/2"	850	5914K35	000000

Shaft Repair Sleeves

Also known as speedi sleeves, use these to repair and protect worn shafts for a smooth sealing surface without machining. Each sleeve comes with an installation tool. To install, place the installation tool around the sleeve and gently tap the installation tool until the sleeve covers the worn shaft surface.

	For Shaft				Flange
	Dia.	Dia. Tolerance	Max. Installed Dp.	Sealing Face Wd.	OD	Wd.	Sleeve Thk.		Each
300 Series Stainless Steel



		1 1/2"	1.497" to 1.503"	1.016"	0.563"	1.781"	0.125"	0.011"	5187T17	000000