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Combi Seals | Simmerring Combi Seal SF5 (NBR)

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simrif-

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Simmerring Combi Seal SF5

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Material

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Product description

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The Simmerring Combi Seal consists of at least two mounted ele-

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ments which are preferably used in agricultural and construction

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machinery. In addition the PU element in this system can provide

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effective sealing for small axial motions.

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Product advantages

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■ Long service life

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■ High resistance to dirt ingress due to the optimal positioning

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of sealing lip and dust lip

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Performance in relation to dirt from the outside

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High resistance to dirt from the outside. Suitable for protection

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against sludge.

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Product properties

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■ Design: special types, on enquiry

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■ Combination of a Simmerring and an additional seal against

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dirt from the outside in one housing

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■ Spring-loaded sealing lip

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■ Additional dust lip

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■ Primarily for usage in all applications with high level of soiling,

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e.g., in axles for off-road vehicles

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■ Use preferably instead of the Simmerring Cassette Seal in

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case of superimposed rotational and translation movements

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Material	Acrylonitrile-butadiene rubber
Code	75 NBR106200
Colour	Black
Hardness	75 Shore A

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Components

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Metal insert	Unalloyed steel DIN 1624 - EN 10139
Spring	Spring steel 1 7223
Dirt wiper	Polyurethane (AU)

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Operating conditions

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| <4 m/s

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<0,05 MPa

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For material definitions, it must be taken into account that it is

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possible that not all extreme conditions will occur simultaneously.

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Fitting & installation

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Shaft

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Tolerance	ISO h 11
Runout	IT 8
	Ra = 0,2 ... 0,8 |jm
Roughness	| Rz= 1,0 ... 5,0 |jm
	Rmax£ 6,3 Mm
Hardness	45 ... 60 HRC
Finish	No lead; preferably plunge ground

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Housing bore

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Tolerance	ISO H8
Roughness metal outer surface OD	Rz = 1 0 ... 16 Mm

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Careful fitting according to DIN 3760 is a prerequisite for the

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correct function of the seal -* Technical Manual.

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Further information on enquiry.

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Range of dimensions for shafts-0 dl

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35 ... 120 mm

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Simmerring Combi Seal SF5

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Application

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■ Drives (agricultural vehicles, general industry)

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■ Agricultural machinery

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Freudenberg Simrit GmbH & Co. KG | Simmerrings and Rotary Seals eCatalog 2009

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