1 1/4" Shaft Diameter Shaft Seals

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System of Measurement

Seal ID

Seal OD

Seal Width

For Use With

Diluted Salt Solutions

Material

Bore Diameter

For Shaft Motion

Loaded Type

Maximum Rotation Speed

For Sealing

Seat OD

Maximum Pressure

Hardness Rating

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

Yes

Rotation Speed

3,000 rpm to 9,999 rpm

10,000 rpm to 19,999 rpm

Spring Material

Color

Manufacturer/Brand Equivalent

Sealol Type 43 CE Long

Sealol Type 43 CE Short

Sealol Type 43 CU Short

Maximum Temperature

200° F to 249° F

250° F to 499° F

For Minimum Bore Width

Export Control Classification Number (ECCN)

EAR99

DFARS Specialty Metals

REACH

RoHS

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30 Products

Bore-Sealing Spring-Loaded Rotary Shaft Seals with Wiper Lip


Side 1	Side 2	Profile

Ribbed Buna-N over steel creates a tight seal with the bore, even when mating with a rough surface or in a split housing. Also known as oil seals, these retain oil on rotating shafts in motors, pumps, bearings, and gearboxes. They have a secondary lip that blocks contaminants and a spring that secures the sealing-lip to prevent leaks. Press-fit seals into the bore around the shaft. Seals with a maximum pressure of 145 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.

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



		1 1/4"	1.250"	1.750"	0.250"	1.750"	0.262"	4,200	7	-40 to 212	Durometer 70A (Hard)	Black	1199N69	00000


		1 1/4"	1.250"	2.000"	0.250"	2.000"	0.262"	3,700	7	-40 to 212	Durometer 70A (Hard)	Black	1199N71	0000

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 1/4"	185	John Crane Type 21 Pac-Seal Type 21 Pac-Seal Type 31 Sealol Type 43 CE Short Sealol Type 43 CU Short	1.250"	1.878"	1.062"	1.291"	1.875"	0.437"	Carbon	Ceramic	Straight	Spring Retainer	250	Outside North America	9281K352	000000


		1 1/4"	381	John Crane Type 21 Pac-Seal Type 21 Pac-Seal Type 31 Sealol Type 43 CE Short Sealol Type 43 CU Short	1.250"	1.990"	1.062"	1.291"	1.875"	0.437"	Carbon	Ceramic	Cone	—	250	Outside North America	9281K361	00000
		1 1/4"	466	John Crane Type 21 Pac-Seal Type 21 Pac-Seal Type 31 Sealol Type 43 CE Short Sealol Type 43 CU Short	1.250"	1.878"	1.062"	1.291"	2.000"	0.437"	Carbon	Ceramic	Straight	Spring Retainer	250	Outside North America	9281K354	00000
		1 1/4"	756	John Crane Type 21 Pac-Seal Type 21 Pac-Seal Type 31 Sealol Type 43 CE Short Sealol Type 43 CU Short	1.250"	1.878"	1.062"	1.291"	1.875"	0.437"	Carbon	Gray Iron	Straight	Spring Retainer	250	Outside North America	9281K356	00000
		1 1/4"	976	John Crane Type 21 Pac-Seal Type 21 Pac-Seal Type 31 Sealol Type 43 CE Short Sealol Type 43 CU Short	1.250"	1.990"	1.062"	1.290"	1.768"	0.367"	Carbon	Ceramic	Cone	—	250	Outside North America	9281K358	00000


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



				1 1/4"	185V	John Crane Type 21 Pac-Seal Type 21 Pac-Seal Type 31 Sealol Type 43 CE Short Sealol Type 43 CU Short	1.250"	1.878"	1.062"	1.291"	1.875"	0.437"	Carbon	Ceramic	Straight	Spring Retainer	250	Outside North America	9281K342	00000


				1 1/4"	185VSC	John Crane Type 21 Pac-Seal Type 21 Pac-Seal Type 31 Sealol Type 43 CE Short Sealol Type 43 CU Short	1.250"	1.878"	1.062"	1.291"	1.875"	0.437"	Silicon Carbide	Silicon Carbide	Straight	Spring Retainer	250	Outside North America	9281K245	000000


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



						1 1/4"	185E	John Crane Type 21 Pac-Seal Type 21 Pac-Seal Type 31 Sealol Type 43 CE Short Sealol Type 43 CU Short	1.250"	1.878"	1.062"	1.291"	1.875"	0.437"	Carbon	Ceramic	Straight	Spring Retainer	250	Outside North America	9281K203	00000

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 1/4"	1.220" to 1.300"	1.820" to 1.900"	1.122"	1.859"	0.375"	5,400	100	-20 to 225	Durometer 85A (Hard)	Black	9562K47	00000

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 1/4"	1.250"	1.750"	0.250"	1.750"	0.266"	3,600	10	-40 to 210	Durometer 80A (Hard)	Black	Acrylic Coated	Green	DIN 3760, ISO 6194	5154T41	000000


		1 1/4"	1.250"	1.750"	0.250"	1.750"	0.266"	3,600	50	-40 to 210	Durometer 80A (Hard)	Black	Acrylic Coated	Green	DIN 3760, ISO 6194	5154T51	00000
		1 1/4"	1.250"	1.874"	0.250"	1.874"	0.266"	3,600	10	-40 to 210	Durometer 80A (Hard)	Black	Acrylic Coated	Green	DIN 3760, ISO 6194	5154T157	00000
		1 1/4"	1.250"	2.000"	0.250"	2.000"	0.266"	3,600	10	-40 to 210	Durometer 80A (Hard)	Black	Acrylic Coated	Green	DIN 3760, ISO 6194	5154T42	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 1/4"	1.250"	2.063"	0.438"	2.063"	0.438"	3,100	7	-20 to 250	Durometer 75A (Hard)	Black	Black	1885N11	000000

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 1/4"	1.250"	1.500"	0.125"	1.500"	0.141"	3,600	10	-40 to 210	Durometer 75A (Hard)	Black	Acrylic Coated	Green	DIN 3760, ISO 6194	5154T62	00000


		1 1/4"	1.250"	1.624"	0.250"	1.624"	0.266"	3,600	10	-40 to 210	Durometer 75A (Hard)	Black	Acrylic Coated	Green	DIN 3760, ISO 6194	4906N16	00000

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 1/4"	1.250"	1.750"	0.313"	1.750"	0.323"	15,300	150	-40 to 250	Durometer 60D (Extra Hard)	Black	Durometer 70A (Hard)	Black	2122N15	000000

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 1/4"	1.220" to 1.299"	1.693" to 1.772"	1.142"	1.457"	0.295"	5,300	5	5 to 390	Durometer 60A (Medium)	Brown	1670N19	00000

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 1/4"	1.250"	2.000"	0.250"	2.000"	0.266"	3,600	10	-40 to 210	Durometer 75A (Hard)	Black	Acrylic Coated	Green	DIN 3760, ISO 6194	5154T28	000000

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 1/4"	1.250"	2.125"	0.438"	2.125"	0.438"	6,100	Not Rated	-20 to 250	Durometer 75A (Hard)	Black	Black	1651N16	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 1/4"	John Crane Type 8T Pac-Seal Type 8T	1.250"	1.687"	1.000"	1.281"	1.875"	0.437"	Carbon	Ceramic	300	Outside North America	1563N14	0000000

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 1/4"	361	John Crane Type 1 Pac-Seal Type 51 Sealol Type 43 CE Long	1.250"	1.687"	1.625"	1.291"	1.875"	0.437"	Carbon	Ceramic	150	Outside North America	9281K365	000000


		316 Stainless Steel Case and 316 Stainless Steel Spring with Viton® Fluoroelastomer Diaphragm and Viton® Fluoroelastomer Gasket



				1 1/4"	361V	John Crane Type 1 Pac-Seal Type 51 Sealol Type 43 CE Long	1.250"	1.687"	1.625"	1.291"	1.875"	0.437"	Carbon	Ceramic	150	Outside North America	9281K262	00000

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 1/4"	1.25"	2.874"	2.736"	220	4887N13	000000000	4887N37	000000000

High-Torque Sleeve Couplings

With a steel sleeve and hubs, these transmit higher torque than other sleeve couplings. Lubricate to reduce friction between the teeth on the hubs and the grooves on the sleeve. For a complete coupling, select two hubs, one sleeve, and one seal kit. Choose components of the same trade size to ensure they'll fit together.

Seal Kits

Prevent lubricant leaks and keep contaminants out of couplings.

Buna-N and Steel Seal—Rubber seals that keep lubricant in and contaminants out, secured by durable steel rings to ensure a tight seal.

	Shaft Coupling Trade Size	Includes		Each
Buna-N and Steel Seal



	3 5/16"	C-7/8	Two Buna-N Rubber Lubrication Seals, Two Steel Snap Rings	6454K31	000000


	3 3/4"	C-1.5	Two Buna-N Rubber Lubrication Seals, Two Steel Snap Rings	6454K33	00000
	4 3/4"	C-2	Two Buna-N Rubber Lubrication Seals, Two Steel Snap Rings	6454K35	00000