1/4" Shaft Diameter Shaft Seals

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System of Measurement

Seal ID

Seal OD

Maximum Rotation Speed

For Use With

Diluted Salt Solutions

Sodium Bicarbonate (Baking Soda)

Seal Width

Rotation Speed

20,000 rpm or greater

Bore Diameter

Material

Loaded Type

Maximum Pressure

Spring Material

Maximum Temperature

For Sealing

Color

Faceplate Diameter

Hardness Rating

RoHS

Compliant with Exemptions

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

Yes

DFARS Specialty Metals

Hardness

Export Control Classification Number (ECCN)

EAR99

Case Material

Steel

For Minimum Bore Width

REACH

8 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			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



		1/4"	0.210" to 0.260"	0.500" to 0.550"	0.193"	0.547"	0.190"	29,000	100	-20 to 225	Durometer 85A (Hard)	Black	9562K41	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



		1/4"	0.250"	0.749"	0.250"	0.749"	0.266"	1,100	10	-40 to 210	Durometer 75A (Hard)	Black	Acrylic Coated	Green	DIN 3760, ISO 6194	5154T301	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



		1/4"	0.217" to 0.256"	0.453" to 0.492"	0.197"	0.354"	0.146"	30,600	5	5 to 390	Durometer 60A (Medium)	Brown	1670N11	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



		1/4"	0.250"	0.499"	0.188"	0.499"	0.204"	1,100	10	-40 to 210	Durometer 75A (Hard)	Black	—	—	DIN 3760, ISO 6194	5154T52	00000


		1/4"	0.250"	0.562"	0.188"	0.562"	0.204"	1,100	10	-40 to 210	Durometer 75A (Hard)	Black	Acrylic Coated	Green	DIN 3760, ISO 6194	4906N11	00000

Potentiometer Panel Seals

Seal around a potentiometer shaft to keep out moisture and dust. Made of silicone rubber, these seals resist high temperatures and stay flexible across a wide range of conditions. They meet Fed. Spec. A-A-59588 Class 3A Grade 50 for consistent durometer and sealing performance. Match the mounting thread type to your potentiometer.

	Mounting Thread Size	Material	Includes	Mil. Spec.	Certification	Choose a Color		Each
UNEF Mounting Thread



	1/4"	3/8"-32	Silicone Rubber	Mounting Nut	Fed. Spec. A-A-59588 Class 3A Grade 50	C-UL Recognized Component, UL Recognized Component	Black, Gray	70205K81	00000


	Metric Mounting Thread



			1/4"	M9 × 0.75 mm	Silicone Rubber	Mounting Nut	Fed. Spec. A-A-59588 Class 3A Grade 50	C-UL Recognized Component, UL Recognized Component	Black, Gray	70205K134	0000


			1/4"	M10 × 0.75 mm	Silicone Rubber	Mounting Nut	Fed. Spec. A-A-59588 Class 3A Grade 50	C-UL Recognized Component, UL Recognized Component	Black, Gray	70205K124	0000