SF5

SF5

Product catalog summary
Product Description:
The Simmerring Combi Seal SF5 is a rotary seal designed for high resistance to dirt ingress, featuring a sealing lip and an additional dust lip. It is particularly suitable for applications with high levels of soiling, such as axles in off-road vehicles and agricultural machinery.
Product Advantages:
  • Long service life.
  • Optimal positioning of sealing and dust lips for enhanced dirt resistance.
  • Effective protection against sludge and external dirt.
Product Properties:
  • Special design types available on request.
  • Combination of a Simmerring and an additional seal in one housing.
  • Spring-loaded sealing lip and additional dust lip.
  • Suitable for superimposed rotational and translational movements.
Material:
  • Acrylonitrile-butadiene rubber (NBR), code 75 NBR 106200, black, hardness 75 Shore A.
  • Metal insert made of unalloyed steel DIN 1624 – EN10139.
  • Spring made of spring steel 17223.
  • Dirt wiper made of polyurethane (AU).
Operating Conditions:
  • Temperature: ≤ +80 °C.
  • Speed: ≤ 4 m/s.
  • Pressure: ≤ 0.05 MPa.
Fitting & Installation:
  • Shaft tolerance: ISO h 11.
  • Runout: IT 8.
  • Roughness: Ra = 0.2 … 0.8 µm, Rz = 1.0 … 5.0 µm, Rmax ≤ 6.3 µm.
  • Hardness: 45 … 60 HRC.
  • Finish: No lead, preferably plunge ground.
  • Housing bore tolerance: ISO H8, roughness Rz = 10 … 16 µm.
  • Suitable for shaft diameters ranging from 35 to 120 mm.
Applications:
The seal is primarily used in agricultural and construction machinery, providing effective sealing for small axial motions.
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Catalog excerpts

SF5-1

Combi Seals | Simmerring Combi Seal SF5 (NBR) Simmerring Combi Seal SF5 Product description The Simmerring Combi Seal consists of at least two mounted ele- ments which are preferably used in agricultural and construction machinery. In addition the PU element in this system can provide effective sealing for small axial motions. Product advantages ■ Long service life ■ High resistance to dirt ingress due to the optimal positioning Performance in relation to dirt from the outside High resistance to dirt from the outside. Suitable for protection against sludge. Product properties ■ Design: special types, on enquiry ■ Combination of a Simmerring and an additional seal against dirt from the outside in one housing ■ Primarily for usage in all applications with high level of soiling, e.g., in axles for off-road vehicles ■ Use preferably instead of the Simmerring Cassette Seal in case of superimposed rotational and translation movements Operating conditions For material definitions, it must be taken into account that it is possible that not all extreme conditions will occur simultaneously. Fitting & installation Housing bore Careful fitting according to DIN 3760 is a prerequisite for the correct function of the seal -* Technical Manual. Further information on enquiry. Simmerring Combi Seal SF5 ■ Drives (agricultural vehicles, general industry) Freudenberg Simrit GmbH & Co. KG | Simmerrings and Rotary Seals eCatalog 2009

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.