Oil seal OS-PA31

Oil Seal PTFE Carbon/Graphite Static Seal FKM Type: OS-PA31

Dimensions: 10 x 22 x 6
Part number: 687129
Delivery time: ± 10 weeks
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Oil Seal PTFE Carbon/Graphite Static Seal FKM Type: OS-PA31

Dimensions: 10 x 22 x 7
Part number: 314802
Delivery time: 3-5 days
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Oil Seal PTFE Carbon/Graphite Static Seal FKM Type: OS-PA31

Dimensions: 10 x 24 x 7
Part number: 687130
Delivery time: 3-5 days
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Oil Seal PTFE Carbon/Graphite Static Seal FKM Type: OS-PA31

Dimensions: 10 x 25 x 7
Part number: 687131
Delivery time: 3-5 days
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Oil Seal PTFE Carbon/Graphite Static Seal FKM Type: OS-PA31

Dimensions: 10 x 28 x 7
Part number: 687132
Delivery time: 3-5 days
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Oil Seal PTFE Carbon/Graphite Static Seal FKM Type: OS-PA31

Dimensions: 100 x 120 x 12
Part number: 856212
Delivery time: 3-5 days
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OS-PA31

Description

Pressure loadable radial shaft seal
Metal OD
Sealing lip made of PTFE
Sealing lip with elastomer washer, clamped between 2 metal cases

Special features

Permits high shaft speeds
High thermal resistance
High chemical resistance
Pressure loadable
Applicable with insuffi cient lubrication and dry running
Very low friction coefficient, stick-slip free running
Non-moulded processing
Inside diameter from 31mm possible
Small runs without mould cost possible
Short delivery time
Very fi rm and exact fi t inside the housing due to metal-metal interference fit
Be careful when using the product in connection with light metal housings, housings with increased surface roughness and applications with overpressure: Apply sealing aid to the outside diameter if necessary

Applications e.g.:

Chemical industry
Mechanical and apparatus engineering
Drive systems

Materials

Standard material

Sealing lip	PTFE / glass fibre / MoS2
Metal case	Roestvrij- en zuurbestendig staal 1.4404 (AISI316L)
Elastomer washer	FKM

Special materials

Sealing lip	PTFE / carbon graphite
Metal case	Standard steel
Elastomer washer	Other elastomers on request

Application parameters

For the standard materials combination

Temperature	-90°C to +250°C
Pressure	max. 1 MPa
Shaft speed	max. 40m/s
Media	Mineral oil based lubricants, synthetic lubricants, many acids and lyes, solvents, water

The diff erent permitted maximum values should always be seen in connection with all application parameters. The total load on the seal is the combination of individual values.

Design information

Shaft

Toleratie	ISO h11
Hardness	min. 50 HRC
Roughness	Ra = 0,2 - 0,8 μm
Rz	1-5 μm
Rmax	≤ 6,3 μm
Surface finish	free of orientation (lead free)

Housing bore

Tolerance	ISO H8
Hardness	Ra = 0.8 - 3.2 μm
Rz	= 6.3 - 16 μm
Rmax	≤ 16 μm

Installation

Please read our installation instructions.