22mm Shaft Diameter Shaft Seals

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System of Measurement

Seal ID

Seal OD

Seal Width

For Use With

Diluted Salt Solutions

Sodium Bicarbonate (Baking Soda)

Vegetable Oil

Hardness Rating

Medium

Maximum Rotation Speed

For Shaft Motion

For Sealing

Maximum Temperature

Material

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

DFARS Specialty Metals

Exempt

Export Control Classification Number (ECCN)

Minimum Temperature

REACH

RoHS

Maximum Pressure

Hardness

Color

Faceplate Diameter

21.000 mm to 24.000 mm

Rotation Speed

3,000 rpm to 9,999 rpm

Manufacturer/Brand Equivalent

John Crane Type 21

Pac-Seal Type 21

Pac-Seal Type 31

Sealol Type 43 CE Short

Sealol Type 43 CU Short

Seat Material

Ceramic

Gasket Material

Buna-N

Viton® Fluoroelastomer

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3 Products

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



		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	9562K103	00000

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.

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



		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	9281K605	000000


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



				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	9281K415	00000