Metric Shaft Seals | McMaster-Carr

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



		12	12.000	22.000	7.000	22.000	7.300	21,800	7	-40 to 210	Durometer 75A (Hard)	Gray	DIN 3760, ISO 6194	0000000	00000


		12	12.000	25.000	7.000	25.000	7.300	21,800	7	-40 to 210	Durometer 75A (Hard)	Gray	DIN 3760, ISO 6194	0000000	0000
		15	15.000	25.000	6.000	25.000	6.300	12,500	145	-40 to 212	Durometer 70A (Hard)	Black	—	00000000	0000
		15	15.000	26.000	7.000	26.000	7.300	17,800	7	-40 to 210	Durometer 75A (Hard)	Gray	DIN 3760, ISO 6194	0000000	0000
		15	15.000	30.000	7.000	30.000	7.300	17,800	7	-40 to 210	Durometer 75A (Hard)	Gray	DIN 3760, ISO 6194	00000000	0000
		15	15.000	35.000	7.000	35.000	7.300	17,800	7	-40 to 210	Durometer 75A (Hard)	Gray	DIN 3760, ISO 6194	00000000	0000
		17	17.000	30.000	7.000	30.000	7.300	15,400	7	-40 to 210	Durometer 75A (Hard)	Gray	DIN 3760, ISO 6194	0000000	0000
		20	20.000	30.000	7.000	30.000	7.300	13,200	7	-40 to 210	Durometer 75A (Hard)	Gray	DIN 3760, ISO 6194	00000000	0000
		20	20.000	35.000	7.000	35.000	7.300	13,200	7	-40 to 210	Durometer 75A (Hard)	Gray	DIN 3760, ISO 6194	00000000	0000
		20	20.000	40.000	7.000	40.000	7.300	13,200	7	-40 to 210	Durometer 75A (Hard)	Gray	DIN 3760, ISO 6194	00000000	0000
		24	24.000	40.000	6.000	40.000	6.300	7,700	145	-40 to 212	Durometer 70A (Hard)	Black	—	00000000	0000


		25	25.000	35.000	7.000	35.000	7.300	10,500	7	-40 to 210	Durometer 75A (Hard)	Gray	DIN 3760, ISO 6194	0000000	0000
		25	25.000	38.000	7.000	38.000	7.300	10,500	7	-40 to 210	Durometer 75A (Hard)	Gray	DIN 3760, ISO 6194	0000000	0000
		25	25.000	40.000	7.000	40.000	7.300	10,500	7	-40 to 210	Durometer 75A (Hard)	Gray	DIN 3760, ISO 6194	0000000	0000
		25	25.000	47.000	7.000	47.000	7.300	10,600	7	-40 to 210	Durometer 75A (Hard)	Gray	DIN 3760, ISO 6194	00000000	0000
		25	25.000	52.000	8.000	52.000	8.300	10,500	7	-40 to 210	Durometer 75A (Hard)	Gray	DIN 3760, ISO 6194	0000000	0000
		30	30.000	40.000	7.000	40.000	7.300	8,700	7	-40 to 210	Durometer 75A (Hard)	Gray	DIN 3760, ISO 6194	0000000	0000
		30	30.000	42.000	7.000	42.000	7.300	8,900	7	-40 to 210	Durometer 75A (Hard)	Gray	DIN 3760, ISO 6194	00000000	0000
		30	30.000	45.000	8.000	45.000	8.300	8,700	7	-40 to 210	Durometer 75A (Hard)	Gray	DIN 3760, ISO 6194	0000000	0000
		30	30.000	47.000	7.000	47.000	7.300	8,700	7	-40 to 210	Durometer 75A (Hard)	Gray	DIN 3760, ISO 6194	0000000	0000
		30	30.000	52.000	7.000	52.000	7.300	8,900	7	-40 to 210	Durometer 75A (Hard)	Gray	DIN 3760, ISO 6194	00000000	0000


		32	32.000	47.000	8.000	47.000	8.300	8,200	7	-40 to 210	Durometer 75A (Hard)	Gray	DIN 3760, ISO 6194	0000000	0000
		32	32.000	48.000	7.000	48.000	7.300	5,900	145	-40 to 212	Durometer 70A (Hard)	Black	—	00000000	0000
		35	35.000	47.000	7.000	47.000	7.300	7,600	7	-40 to 210	Durometer 75A (Hard)	Gray	DIN 3760, ISO 6194	00000000	0000
		35	35.000	50.000	7.000	50.000	7.300	7,600	7	-40 to 210	Durometer 75A (Hard)	Gray	DIN 3760, ISO 6194	0000000	0000
		35	35.000	50.000	8.000	50.000	8.300	7,600	7	-40 to 210	Durometer 75A (Hard)	Gray	DIN 3760, ISO 6194	00000000	0000
		35	35.000	52.000	6.000	52.000	6.300	5,400	145	-40 to 212	Durometer 70A (Hard)	Black	—	00000000	0000
		35	35.000	52.000	7.000	52.000	7.300	7,600	7	-40 to 210	Durometer 75A (Hard)	Gray	DIN 3760, ISO 6194	00000000	0000
		35	35.000	52.000	8.000	52.000	8.300	7,600	7	-40 to 210	Durometer 75A (Hard)	Gray	DIN 3760, ISO 6194	00000000	0000
		35	35.000	54.000	6.000	54.000	6.300	5,400	145	-40 to 212	Durometer 70A (Hard)	Black	—	00000000	0000
		40	40.000	52.000	7.000	52.000	7.300	6,600	7	-40 to 210	Durometer 75A (Hard)	Gray	DIN 3760, ISO 6194	00000000	0000


		40	40.000	52.000	8.000	52.000	8.300	6,600	7	-40 to 210	Durometer 75A (Hard)	Gray	DIN 3760, ISO 6194	00000000	0000
		40	40.000	55.000	7.000	55.000	7.300	4,700	145	-40 to 212	Durometer 70A (Hard)	Black	—	00000000	0000
		40	40.000	55.000	7.000	55.000	7.300	6,600	7	-40 to 210	Durometer 75A (Hard)	Gray	DIN 3760, ISO 6194	00000000	0000
		40	40.000	55.000	8.000	55.000	8.300	6,500	7	-40 to 210	Durometer 75A (Hard)	Gray	DIN 3760, ISO 6194	0000000	0000
		45	45.000	62.000	7.000	62.000	7.300	4,200	145	-40 to 212	Durometer 70A (Hard)	Black	—	00000000	0000
		45	45.000	75.000	8.000	75.000	8.300	5,800	7	-40 to 210	Durometer 75A (Hard)	Gray	DIN 3760, ISO 6194	0000000	0000
		47	47.000	62.000	7.000	62.000	7.300	4,000	145	-40 to 212	Durometer 70A (Hard)	Black	—	00000000	0000
		50	50.000	65.000	8.000	65.000	8.300	5,300	7	-40 to 210	Durometer 75A (Hard)	Gray	DIN 3760, ISO 6194	00000000	0000
		50	50.000	68.000	8.000	68.000	8.300	5,200	7	-40 to 210	Durometer 75A (Hard)	Gray	DIN 3760, ISO 6194	0000000	00000
		50	50.000	72.000	7.000	72.000	7.300	3,700	145	-40 to 212	Durometer 70A (Hard)	Black	—	00000000	0000


		50	50.000	72.000	8.000	72.000	8.300	5,200	7	-40 to 210	Durometer 75A (Hard)	Gray	DIN 3760, ISO 6194	0000000	0000
		55	55.000	83.000	7.000	83.000	7.300	3,400	145	-40 to 212	Durometer 70A (Hard)	Black	—	00000000	0000
		60	60.000	72.000	8.000	72.000	8.300	2,760	7	-40 to 210	Durometer 75A (Hard)	Gray	DIN 3760, ISO 6194	0000000	0000
		65	65.000	80.000	8.000	80.000	8.300	2,640	7	-40 to 210	Durometer 75A (Hard)	Gray	DIN 3760, ISO 6194	0000000	00000
		70	70.000	85.000	8.000	85.000	8.300	2,520	7	-40 to 210	Durometer 75A (Hard)	Gray	DIN 3760, ISO 6194	0000000	00000
		75	75.000	95.000	10.000	95.000	10.300	2,400	7	-40 to 210	Durometer 75A (Hard)	Gray	DIN 3760, ISO 6194	0000000	00000
		80	80.000	105.000	10.000	105.000	10.300	2,340	7	-40 to 210	Durometer 75A (Hard)	Gray	DIN 3760, ISO 6194	0000000	00000
		85	85.000	100.000	9.000	100.000	9.300	2,220	7	-40 to 210	Durometer 75A (Hard)	Gray	DIN 3760, ISO 6194	0000000	00000
		90	90.000	110.000	12.000	110.000	12.300	2,160	7	-40 to 210	Durometer 75A (Hard)	Gray	DIN 3760, ISO 6194	0000000	00000
		95	95.000	110.000	10.000	110.000	10.300	2,100	7	-40 to 210	Durometer 75A (Hard)	Gray	DIN 3760, ISO 6194	0000000	00000

100	100.000	120.000	12.000	120.000	12.300	2,600	7	-40 to 210	Durometer 75A (Hard)	Gray	DIN 3760, ISO 6194	0000000	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, mm			Seal, mm
	Dia.	Dia. Range	For Faceplate Dia., mm	ID	OD	Wd.	Max. Rotation Speed, rpm	Max. Pressure, psi	Temp. Range, ° F	Hardness	Color		Each
Buna-N



		10	9.500 to 11.500	9.500 to 11.500	9.000	15.000	3.000	10,100	5	-40 to 212	Durometer 60A (Medium)	Black	00000000	00000


		12	11.500 to 12.500	20.500 to 21.500	10.500	16.500	3.000	14,600	4	-40 to 212	Durometer 60A (Medium)	Black	0000000	0000
		15	13.500 to 15.500	22.500 to 24.500	12.500	18.500	3.000	12,200	4	-40 to 212	Durometer 60A (Medium)	Black	0000000	0000
		17	15.500 to 17.500	24.500 to 26.500	14.000	20.000	3.000	10,900	4	-40 to 212	Durometer 60A (Medium)	Black	0000000	0000
		18	17.500 to 19.000	17.500 to 19.000	16.000	22.000	3.000	6,900	5	-40 to 212	Durometer 60A (Medium)	Black	00000000	0000
		20	19.000 to 21.000	31.000 to 33.000	18.000	26.000	4.000	8,500	4	-40 to 212	Durometer 60A (Medium)	Black	0000000	0000
		22	21.000 to 24.000	21.000 to 24.000	20.000	28.000	4.000	5,400	5	-40 to 212	Durometer 60A (Medium)	Black	00000000	0000
		26	24.000 to 27.000	36.000 to 39.000	22.000	30.000	7.500	6,900	4	-40 to 212	Durometer 60A (Medium)	Black	0000000	0000
		30	29.000 to 31.000	41.000 to 43.000	27.000	35.000	4.000	5,700	4	-40 to 212	Durometer 60A (Medium)	Black	0000000	0000
		32	31.000 to 33.000	31.000 to 33.000	29.000	37.000	4.000	4,100	5	-40 to 212	Durometer 60A (Medium)	Black	00000000	0000
		35	33.000 to 36.000	45.000 to 48.000	31.000	39.000	4.000	4,900	4	-40 to 212	Durometer 60A (Medium)	Black	0000000	0000


		41	38.000 to 43.000	53.000 to 58.000	36.000	46.000	5.000	4,200	4	-40 to 212	Durometer 60A (Medium)	Black	0000000	0000
		45	43.000 to 48.000	43.000 to 48.000	40.000	50.000	5.000	3,000	5	-40 to 212	Durometer 60A (Medium)	Black	00000000	0000
		51	48.000 to 53.000	63.000 to 68.000	45.000	55.000	5.000	3,400	4	-40 to 212	Durometer 60A (Medium)	Black	0000000	0000
		55	53.000 to 58.000	53.000 to 58.000	49.000	59.000	5.000	2,500	5	-40 to 212	Durometer 60A (Medium)	Black	00000000	0000
		60	58.000 to 63.000	58.000 to 63.000	54.000	64.000	5.000	2,300	5	-40 to 212	Durometer 60A (Medium)	Black	00000000	0000
		65	63.000 to 68.000	63.000 to 68.000	58.000	68.000	5.000	2,200	5	-40 to 212	Durometer 60A (Medium)	Black	00000000	0000

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.

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



		12	12.000	16.000	3.000	16.000	3.300	15,900	Not Rated	-20 to 212	Durometer 70A (Hard)	Black	00000000	00000


		12	12.000	18.000	3.000	18.000	3.300	15,900	Not Rated	-20 to 212	Durometer 70A (Hard)	Black	00000000	0000
		12	12.000	19.000	3.000	19.000	3.300	15,900	Not Rated	-20 to 212	Durometer 70A (Hard)	Black	00000000	0000
		15	15.000	21.000	3.000	21.000	3.300	12,700	Not Rated	-20 to 212	Durometer 70A (Hard)	Black	00000000	0000
		17	17.000	23.000	3.000	23.000	3.300	11,200	Not Rated	-20 to 212	Durometer 70A (Hard)	Black	00000000	0000
		20	20.000	26.000	4.000	26.000	4.300	9,500	Not Rated	-20 to 212	Durometer 70A (Hard)	Black	00000000	0000
		20	20.000	28.000	4.000	28.000	4.300	9,500	Not Rated	-20 to 212	Durometer 70A (Hard)	Black	00000000	0000
		25	25.000	32.000	4.000	32.000	4.300	7,600	Not Rated	-20 to 212	Durometer 70A (Hard)	Black	00000000	0000
		25	25.000	35.000	4.000	35.000	4.300	7,600	Not Rated	-20 to 212	Durometer 70A (Hard)	Black	00000000	0000
		30	30.000	37.000	4.000	37.000	4.300	6,300	Not Rated	-20 to 212	Durometer 70A (Hard)	Black	00000000	0000
		30	30.000	40.000	4.000	40.000	4.300	6,300	Not Rated	-20 to 212	Durometer 70A (Hard)	Black	00000000	0000


		35	35.000	42.000	4.000	42.000	4.300	5,400	Not Rated	-20 to 212	Durometer 70A (Hard)	Black	00000000	0000
		40	40.000	50.000	4.000	50.000	4.300	4,700	Not Rated	-20 to 212	Durometer 70A (Hard)	Black	00000000	0000
		50	50.000	58.000	4.000	58.000	4.300	3,800	Not Rated	-20 to 212	Durometer 70A (Hard)	Black	00000000	0000

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, mm			For Bore, mm							Case
	For Shaft Dia., mm	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



		12	12.000	22.000	7.000	22.000	7.300	3,200	10	-40 to 210	Durometer 75A (Hard)	Black	Acrylic Coated	Green	DIN 3760, ISO 6194	0000000	00000


		12	12.000	25.000	7.000	25.000	7.300	3,200	10	-40 to 210	Durometer 75A (Hard)	Black	Acrylic Coated	Green	DIN 3760, ISO 6194	0000000	0000
		15	15.000	28.000	7.000	28.000	7.300	3,700	10	-40 to 210	Durometer 75A (Hard)	Black	Acrylic Coated	Green	DIN 3760, ISO 6194	00000000	0000
		15	15.000	32.000	7.000	32.000	7.300	3,700	10	-40 to 210	Durometer 75A (Hard)	Black	Acrylic Coated	Green	DIN 3760, ISO 6194	00000000	0000
		17	17.000	30.000	7.000	30.000	7.300	3,900	10	-40 to 210	Durometer 75A (Hard)	Black	Acrylic Coated	Green	DIN 3760, ISO 6194	0000000	0000
		20	20.000	30.000	7.000	30.000	7.300	3,900	10	-40 to 210	Durometer 75A (Hard)	Black	Acrylic Coated	Green	DIN 3760, ISO 6194	00000000	0000
		20	20.000	35.000	7.000	35.000	7.300	3,900	10	-40 to 210	Durometer 75A (Hard)	Black	Acrylic Coated	Green	DIN 3760, ISO 6194	00000000	0000
		20	20.000	40.000	7.000	40.000	7.300	3,900	10	-40 to 210	Durometer 75A (Hard)	Black	Acrylic Coated	Green	DIN 3760, ISO 6194	00000000	0000
		25	25.000	35.000	7.000	35.000	7.300	3,800	10	-40 to 210	Durometer 75A (Hard)	Black	Acrylic Coated	Green	DIN 3760, ISO 6194	0000000	0000
		25	25.000	38.000	7.000	38.000	7.300	3,800	10	-40 to 210	Durometer 75A (Hard)	Black	Acrylic Coated	Green	DIN 3760, ISO 6194	0000000	0000
		25	25.000	40.000	7.000	40.000	7.300	3,800	10	-40 to 210	Durometer 75A (Hard)	Black	Acrylic Coated	Green	DIN 3760, ISO 6194	0000000	0000


		25	25.000	52.000	8.000	52.000	8.300	3,800	10	-40 to 210	Durometer 75A (Hard)	Black	Acrylic Coated	Green	DIN 3760, ISO 6194	0000000	00000
		30	30.000	40.000	7.000	40.000	7.300	3,600	10	-40 to 210	Durometer 75A (Hard)	Black	Acrylic Coated	Green	DIN 3760, ISO 6194	0000000	0000
		30	30.000	45.000	8.000	45.000	8.300	3,600	10	-40 to 210	Durometer 75A (Hard)	Black	Acrylic Coated	Green	DIN 3760, ISO 6194	0000000	0000
		30	30.000	47.000	7.000	47.000	7.300	3,600	10	-40 to 210	Durometer 75A (Hard)	Black	Acrylic Coated	Green	DIN 3760, ISO 6194	0000000	0000
		32	32.000	47.000	8.000	47.000	8.300	3,600	10	-40 to 210	Durometer 75A (Hard)	Black	Acrylic Coated	Green	DIN 3760, ISO 6194	0000000	00000
		35	35.000	47.000	7.000	47.000	7.300	3,400	10	-40 to 210	Durometer 75A (Hard)	Black	Acrylic Coated	Green	DIN 3760, ISO 6194	00000000	0000
		35	35.000	50.000	8.000	50.000	8.300	3,400	10	-40 to 210	Durometer 75A (Hard)	Black	Acrylic Coated	Green	DIN 3760, ISO 6194	00000000	0000
		35	35.000	52.000	8.000	52.000	8.300	3,400	10	-40 to 210	Durometer 75A (Hard)	Black	Acrylic Coated	Green	DIN 3760, ISO 6194	00000000	00000
		40	40.000	55.000	8.000	55.000	8.300	3,300	10	-40 to 210	Durometer 75A (Hard)	Black	Acrylic Coated	Green	DIN 3760, ISO 6194	0000000	0000
		45	45.000	75.000	8.000	75.000	8.300	3,100	10	-40 to 210	Durometer 75A (Hard)	Black	Acrylic Coated	Green	DIN 3760, ISO 6194	0000000	00000


		50	50.000	68.000	8.000	68.000	8.300	3,000	10	-40 to 210	Durometer 75A (Hard)	Black	Acrylic Coated	Green	DIN 3760, ISO 6194	0000000	0000
		50	50.000	72.000	8.000	72.000	8.300	3,000	10	-40 to 210	Durometer 75A (Hard)	Black	Acrylic Coated	Green	DIN 3760, ISO 6194	0000000	00000
		100	100.000	120.000	12.000	120.000	12.300	2,000	10	-40 to 210	Durometer 75A (Hard)	Black	Acrylic Coated	Green	DIN 3760, ISO 6194	0000000	00000

Rod-Sealing Wipers

A two-lip design means that these wipers also function as a rod seal.

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

ISO 6195 Type C Rod Wipers


Side 1	Side 2		Profile

Wipers that meet ISO 6195 Type C fit grooves with the dimensions and tolerances specified by the standard.

		For Groove, mm			Seal, mm
	For Rod Dia., mm	Dia.	Shoulder Dia.	Wd.	Wd.	Overall Wd.	Max. Speed, ft/sec	Max. Pressure, psi	Temp. Range, ° F	Hardness	Color		Each
Polyurethane Rubber



		16	22.000	18.500	4.000	4.000	6.000	3	290	-30 to 212	Durometer 95A (Extra Hard)	Blue	0000000	000000


		18	24.000	20.500	4.000	4.000	6.000	3	290	-30 to 212	Durometer 95A (Extra Hard)	Blue	0000000	00000
		25	31.000	27.500	4.000	4.000	6.000	3	290	-30 to 212	Durometer 95A (Extra Hard)	Blue	0000000	00000
		28	36.000	31.000	5.000	5.000	7.000	3	290	-30 to 212	Durometer 95A (Extra Hard)	Blue	0000000	00000
		35	43.000	38.000	5.000	5.000	7.000	3	290	-30 to 212	Durometer 95A (Extra Hard)	Blue	0000000	00000
		40	48.000	43.000	5.000	5.000	7.000	3	290	-30 to 212	Durometer 95A (Extra Hard)	Blue	0000000	00000
		45	53.000	48.000	5.000	5.000	7.000	3	290	-30 to 212	Durometer 95A (Extra Hard)	Blue	0000000	00000
		50	58.000	53.000	5.000	5.000	7.000	3	290	-30 to 212	Durometer 95A (Extra Hard)	Blue	0000000	00000
		60	70.000	63.000	6.000	6.000	8.000	3	290	-30 to 212	Durometer 95A (Extra Hard)	Blue	0000000	00000
		65	75.000	68.000	6.000	6.000	8.000	3	290	-30 to 212	Durometer 95A (Extra Hard)	Blue	0000000	00000
		70	80.000	73.000	6.000	6.000	8.000	3	290	-30 to 212	Durometer 95A (Extra Hard)	Blue	0000000	00000


		80	90.000	83.000	6.000	6.000	8.000	3	290	-30 to 212	Durometer 95A (Extra Hard)	Blue	0000000	00000
		90	100.000	93.000	6.000	6.000	8.000	3	290	-30 to 212	Durometer 95A (Extra Hard)	Blue	0000000	00000
		100	110.000	103.000	6.000	6.000	8.000	3	290	-30 to 212	Durometer 95A (Extra Hard)	Blue	0000000	00000
		120	135.000	124.000	8.500	8.500	10.500	3	290	-30 to 212	Durometer 95A (Extra Hard)	Blue	0000000	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.

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



		12	12.000	20.000	5.000	20.000	5.300	15,900	7	-20 to 212	Durometer 70A (Hard)	Black	DIN 3761, ISO 6194	00000000	00000


		20	20.000	30.000	7.000	30.000	7.300	9,500	7	-20 to 212	Durometer 70A (Hard)	Black	DIN 3761, ISO 6194	00000000	0000
		20	20.000	35.000	7.000	35.000	7.300	9,500	7	-20 to 212	Durometer 70A (Hard)	Black	DIN 3761, ISO 6194	00000000	0000
		25	25.000	40.000	7.000	40.000	7.300	7,600	7	-20 to 212	Durometer 70A (Hard)	Black	DIN 3761, ISO 6194	00000000	0000
		25	25.000	47.000	7.000	47.000	7.300	7,600	7	-20 to 212	Durometer 70A (Hard)	Black	DIN 3761, ISO 6194	00000000	0000
		25	25.000	52.000	7.000	52.000	7.300	7,600	7	-20 to 212	Durometer 70A (Hard)	Black	DIN 3761, ISO 6194	00000000	0000
		30	30.000	42.000	7.000	42.000	7.300	6,300	7	-20 to 212	Durometer 70A (Hard)	Black	DIN 3761, ISO 6194	00000000	0000
		35	35.000	47.000	7.000	47.000	7.300	5,400	7	-20 to 212	Durometer 70A (Hard)	Black	DIN 3761, ISO 6194	00000000	0000
		35	35.000	52.000	7.000	52.000	7.300	5,400	7	-20 to 212	Durometer 70A (Hard)	Black	DIN 3761, ISO 6194	00000000	0000
		40	40.000	52.000	7.000	52.000	7.300	4,700	7	-20 to 212	Durometer 70A (Hard)	Black	DIN 3761, ISO 6194	00000000	0000
		50	50.000	65.000	8.000	65.000	8.300	3,800	7	-20 to 212	Durometer 70A (Hard)	Black	DIN 3761, ISO 6194	00000000	0000

Mechanical Pump Shaft Seals with Extended 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.

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

			Seal, mm			Seat, mm			Material
	For Shaft Dia., mm	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



		12	John Crane Type 21 Pac-Seal Type 21 Pac-Seal Type 31 Sealol Type 43 CE Short Sealol Type 43 CU Short	12.000	23.500	20.500	14.700	25.500	8.000	Carbon	Ceramic	Straight	Spring Retainer	250	Outside North America	00000000	000000


		13	John Crane Type 21 Pac-Seal Type 21 Pac-Seal Type 31 Sealol Type 43 CE Short Sealol Type 43 CU Short	13.000	23.500	20.500	14.700	25.500	8.000	Carbon	Ceramic	Straight	Spring Retainer	250	Outside North America	00000000	00000
		14	John Crane Type 21 Pac-Seal Type 21 Pac-Seal Type 31 Sealol Type 43 CE Short Sealol Type 43 CU Short	14.000	27.000	22.250	17.100	31.750	10.250	Carbon	Ceramic	Straight	Spring Retainer	250	Outside North America	00000000	00000
		15	John Crane Type 21 Pac-Seal Type 21 Pac-Seal Type 31 Sealol Type 43 CE Short Sealol Type 43 CU Short	15.000	27.000	22.250	17.100	31.750	10.250	Carbon	Ceramic	Straight	Spring Retainer	250	Outside North America	00000000	00000
		16	John Crane Type 21 Pac-Seal Type 21 Pac-Seal Type 31 Sealol Type 43 CE Short Sealol Type 43 CU Short	16.000	27.000	22.250	17.100	31.750	10.250	Carbon	Ceramic	Straight	Spring Retainer	250	Outside North America	00000000	00000
		17	John Crane Type 21 Pac-Seal Type 21 Pac-Seal Type 31 Sealol Type 43 CE Short Sealol Type 43 CU Short	17.000	27.000	22.250	19.700	35.000	10.250	Carbon	Ceramic	Straight	Spring Retainer	250	Outside North America	00000000	00000
		18	John Crane Type 21 Pac-Seal Type 21 Pac-Seal Type 31 Sealol Type 43 CE Short Sealol Type 43 CU Short	18.000	30.700	22.250	19.700	35.000	10.250	Carbon	Ceramic	Straight	Spring Retainer	250	Outside North America	00000000	00000
		20	John Crane Type 21 Pac-Seal Type 21 Pac-Seal Type 31 Sealol Type 43 CE Short Sealol Type 43 CU Short	20.000	33.400	23.750	23.900	38.000	10.250	Carbon	Ceramic	Straight	Spring Retainer	250	Outside North America	0000000	00000
		22	John Crane Type 21 Pac-Seal Type 21 Pac-Seal Type 31 Sealol Type 43 CE Short Sealol Type 43 CU Short	22.000	33.400	23.750	23.900	38.000	10.250	Carbon	Ceramic	Straight	Spring Retainer	250	Outside North America	00000000	00000
		24	John Crane Type 21 Pac-Seal Type 21 Pac-Seal Type 31 Sealol Type 43 CE Short Sealol Type 43 CU Short	24.000	39.200	25.500	26.500	41.250	11.000	Carbon	Ceramic	Straight	Spring Retainer	250	Outside North America	00000000	00000
		25	John Crane Type 21 Pac-Seal Type 21 Pac-Seal Type 31 Sealol Type 43 CE Short Sealol Type 43 CU Short	25.000	39.200	25.500	26.500	41.250	11.000	Carbon	Ceramic	Straight	Spring Retainer	250	Outside North America	00000000	00000


		28	John Crane Type 21 Pac-Seal Type 21 Pac-Seal Type 31 Sealol Type 43 CE Short Sealol Type 43 CU Short	28.000	45.600	27.000	30.680	44.500	11.000	Carbon	Ceramic	Straight	Spring Retainer	250	Outside North America	00000000	00000
		30	John Crane Type 21 Pac-Seal Type 21 Pac-Seal Type 31 Sealol Type 43 CE Short Sealol Type 43 CU Short	30.000	47.400	27.000	34.100	47.750	11.000	Carbon	Ceramic	Straight	Spring Retainer	250	Outside North America	00000000	00000
		32	John Crane Type 21 Pac-Seal Type 21 Pac-Seal Type 31 Sealol Type 43 CE Short Sealol Type 43 CU Short	32.000	47.400	27.000	34.100	47.750	11.000	Carbon	Ceramic	Straight	Spring Retainer	250	Outside North America	00000000	00000
		33	John Crane Type 21 Pac-Seal Type 21 Pac-Seal Type 31 Sealol Type 43 CE Short Sealol Type 43 CU Short	33.000	52.000	28.500	37.100	50.750	11.000	Carbon	Ceramic	Straight	Spring Retainer	250	Outside North America	00000000	00000
		35	John Crane Type 21 Pac-Seal Type 21 Pac-Seal Type 31 Sealol Type 43 CE Short Sealol Type 43 CU Short	35.000	52.000	28.500	37.100	50.750	11.000	Carbon	Ceramic	Straight	Spring Retainer	250	Outside North America	00000000	00000
		45	John Crane Type 21 Pac-Seal Type 21 Pac-Seal Type 31 Sealol Type 43 CE Short Sealol Type 43 CU Short	45.000	65.100	38.000	47.100	63.500	12.750	Carbon	Ceramic	Straight	Spring Retainer	250	Outside North America	00000000	000000
		50	John Crane Type 21 Pac-Seal Type 21 Pac-Seal Type 31 Sealol Type 43 CE Short Sealol Type 43 CU Short	50.000	71.000	38.000	51.900	69.750	12.750	Carbon	Ceramic	Straight	Spring Retainer	250	Outside North America	00000000	000000


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



				12	John Crane Type 21 Pac-Seal Type 21 Pac-Seal Type 31 Sealol Type 43 CE Short Sealol Type 43 CU Short	12.000	23.500	20.500	14.700	25.500	8.000	Carbon	Ceramic	Straight	Spring Retainer	250	Outside North America	00000000	00000


				13	John Crane Type 21 Pac-Seal Type 21 Pac-Seal Type 31 Sealol Type 43 CE Short Sealol Type 43 CU Short	13.000	23.500	20.500	14.700	25.500	8.000	Carbon	Ceramic	Straight	Spring Retainer	250	Outside North America	00000000	00000
				15	John Crane Type 21 Pac-Seal Type 21 Pac-Seal Type 31 Sealol Type 43 CE Short Sealol Type 43 CU Short	15.000	27.000	22.250	17.100	31.750	10.250	Carbon	Ceramic	Straight	Spring Retainer	250	Outside North America	00000000	00000
				16	John Crane Type 21 Pac-Seal Type 21 Pac-Seal Type 31 Sealol Type 43 CE Short Sealol Type 43 CU Short	16.000	27.000	22.250	17.100	31.750	10.250	Carbon	Ceramic	Straight	Spring Retainer	250	Outside North America	00000000	00000
				17	John Crane Type 21 Pac-Seal Type 21 Pac-Seal Type 31 Sealol Type 43 CE Short Sealol Type 43 CU Short	17.000	27.000	22.250	19.700	35.000	10.250	Carbon	Ceramic	Straight	Spring Retainer	250	Outside North America	00000000	00000
				20	John Crane Type 21 Pac-Seal Type 21 Pac-Seal Type 31 Sealol Type 43 CE Short Sealol Type 43 CU Short	20.000	33.400	23.750	23.900	38.000	10.250	Carbon	Ceramic	Straight	Spring Retainer	250	Outside North America	00000000	00000
				22	John Crane Type 21 Pac-Seal Type 21 Pac-Seal Type 31 Sealol Type 43 CE Short Sealol Type 43 CU Short	22.000	33.400	23.750	23.900	38.000	10.250	Carbon	Ceramic	Straight	Spring Retainer	250	Outside North America	00000000	00000
				24	John Crane Type 21 Pac-Seal Type 21 Pac-Seal Type 31 Sealol Type 43 CE Short Sealol Type 43 CU Short	24.000	39.200	25.500	26.500	41.250	11.000	Carbon	Ceramic	Straight	Spring Retainer	250	Outside North America	00000000	00000
				28	John Crane Type 21 Pac-Seal Type 21 Pac-Seal Type 31 Sealol Type 43 CE Short Sealol Type 43 CU Short	28.000	45.600	27.000	30.680	44.500	11.000	Carbon	Ceramic	Straight	Spring Retainer	250	Outside North America	00000000	00000
				30	John Crane Type 21 Pac-Seal Type 21 Pac-Seal Type 31 Sealol Type 43 CE Short Sealol Type 43 CU Short	30.000	47.400	27.000	34.100	47.750	11.000	Carbon	Ceramic	Straight	Spring Retainer	250	Outside North America	00000000	00000
				32	John Crane Type 21 Pac-Seal Type 21 Pac-Seal Type 31 Sealol Type 43 CE Short Sealol Type 43 CU Short	32.000	47.400	27.000	34.100	47.750	11.000	Carbon	Ceramic	Straight	Spring Retainer	250	Outside North America	0000000	00000


				35	John Crane Type 21 Pac-Seal Type 21 Pac-Seal Type 31 Sealol Type 43 CE Short Sealol Type 43 CU Short	35.000	52.000	28.500	37.100	50.750	11.000	Carbon	Ceramic	Straight	Spring Retainer	250	Outside North America	0000000	00000
				40	John Crane Type 21 Pac-Seal Type 21 Pac-Seal Type 31 Sealol Type 43 CE Short Sealol Type 43 CU Short	40.000	59.200	35.000	43.360	60.250	12.750	Carbon	Ceramic	Straight	Spring Retainer	250	Outside North America	00000000	000000


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



						12	John Crane Type 21 Pac-Seal Type 21 Pac-Seal Type 31 Sealol Type 43 CE Short Sealol Type 43 CU Short	12.000	23.500	20.500	14.700	25.500	8.000	Carbon	Ceramic	Straight	Spring Retainer	250	Outside North America	00000000	00000


						16	John Crane Type 21 Pac-Seal Type 21 Pac-Seal Type 31 Sealol Type 43 CE Short Sealol Type 43 CU Short	16.000	27.000	22.250	17.100	31.750	10.250	Carbon	Ceramic	Straight	Spring Retainer	250	Outside North America	00000000	00000
						25	John Crane Type 21 Pac-Seal Type 21 Pac-Seal Type 31 Sealol Type 43 CE Short Sealol Type 43 CU Short	25.000	39.200	25.500	26.500	41.250	11.000	Carbon	Ceramic	Straight	Spring Retainer	250	Outside North America	00000000	00000

Rod End Seals for Ball Joint Rod Ends

Shown

Installed

Keep dirt out and lubrication in to extend the life of your rod ends. Seals are Buna-N with a stainless steel washer for corrosion resistance. Use them between the head of your rod end and your fastener.

For Rod End ID, mm	ID, mm	OD, mm	Overall Ht., mm	Material	Washer Material	Pair
6	6	13	3	Buna-N	304 Stainless Steel	00000
8	8	18	5	Buna-N	304 Stainless Steel	0000
10	10	20	6	Buna-N	304 Stainless Steel	0000
12	12	29	6	Buna-N	304 Stainless Steel	0000
14	14	29	6	Buna-N	304 Stainless Steel	0000
16	16	32	7	Buna-N	304 Stainless Steel	0000
18	18	33	8	Buna-N	304 Stainless Steel	00000
20	20	38	10	Buna-N	304 Stainless Steel	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, mm				Fluoroelastomer Diaphragm		EPDM Diaphragm
	For Shaft Dia., mm	ID	OD	Wd.	Max. Pressure, psi		Each		Each
316 Stainless Steel Case and C276 Nickel Spring with PTFE Gasket



		24	24	66.7	69.5	220	0000000	000000000	0000000	000000000


		25	25	66.7	69.5	220	0000000	00000000	0000000	00000000
		28	28	69.9	69.5	220	0000000	00000000	0000000	00000000
		30	30	73	69.5	220	0000000	00000000	0000000	00000000
		32	32	73	69.5	220	0000000	00000000	0000000	00000000
		33	33	77.8	69.5	220	0000000	00000000	0000000	00000000
		35	35	77.8	69.5	220	0000000	00000000	0000000	00000000
		38	38	87.3	71.5	220	0000000	00000000	0000000	00000000
		40	40	87.3	71.5	220	0000000	00000000	0000000	00000000
		43	43	90.5	71.5	220	0000000	00000000	0000000	00000000
		45	45	90.5	71.5	220	0000000	00000000	0000000	00000000


		48	48	98.4	71.5	220	0000000	00000000	0000000	00000000
		50	50	98.4	71.5	220	0000000	00000000	0000000	00000000