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Bearing Ring with Wiping Function, inside bearing FAI

Bearing Ring with Wiping Function, inside bearing FAI

Bearing Ring with Wiping Function, inside bearing FAI

Product catalog summary
Introduction
The document describes the FAI Bearing Ring with Wiping Function, designed for use in cylinder heads as the foremost guide for piston rods. It features an integrated wiping function that allows for compact construction and prevents metal-to-metal contact between moving machine parts.

Specifications
The FAI bearing ring is made from a highly abrasion-resistant and low-friction POM-PTFE-Bronze compound. It is suitable for use with hydraulic oil based on mineral oil, water-oil emulsions, fire-resistant fluids, and compressed air. The ring has a U-shaped cross-section and is split with an angled butt joint, allowing it to be compressed spirally for easy installation.

Applications
The bearing ring is recommended for applications where space-saving and robust construction is required. It is also effective for wiping off ice and other solid contaminants. In environments with fine dirt particles, a combination of wiper type AI and bearing type FI is suggested.

Materials and Design Hints
The document provides guidance on the materials used, application range, design hints, and surface finish requirements. The split FAI bearing ring can be easily snapped into grooves in the cylinder head due to its spiral compression.

Surface Quality
Surface finish specifications are provided, including Ra and Rt values for sliding surfaces, groove bases, and groove sides.

Ordering Information
The document includes a detailed table of dimensions and reference numbers for ordering standard versions of the FAI bearing ring, with diameters ranging from 22 mm to 630 mm. Further dimensions are available upon request.

Conclusion
The FAI Bearing Ring with Wiping Function is a versatile and durable component suitable for various industrial applications, offering effective guidance and protection for piston rods in hydraulic systems.
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Catalog excerpts

Bearing Ring with Wiping Function, inside bearing FAI-1

FAI Führungsring mit Abstreiffunktion Bearing Ring with Wiping Function innenführend / inside bearing Führungsring mit Abstreiffunktion, innenführend Bearing Ring with Wiping Function, inside bearing Der Hunger Führungsring mit Abstreiffunktion FAI dient als vorderste Führung der Kolbenstange im Zylinderkopf. Durch seine integrierte Abstreiffunktion ermöglicht er kurzbauende Konstruktionen (siehe Seite 18, Beispiel 1). Er stellt die Gleit- und Führungsfläche zweier bewegter Maschinenteile dar und verhindert deren metallische Berührung. Hunger bearing ring with wiping function type FAI is mainly used on piston rods. It allows space-saving construction (see page 18, example 1) due to its integrated wiping function. It provides guiding and bearing surfaces between rod and housing and prevents metal to metal contact between them. Der Hunger Führungsring FAI besteht aus einem äußerst verschleißfesten und reibungsarmen POMPTFE-Bronze-Compound. Er kann bei Hydrauliköl auf Mineralölbasis, bei Wasser-Öl-Emulsionen und bei schwer entflammbaren Flüssigkeiten sowie bei Druckluft eingesetzt werden. The Hunger bearing ring FAI consists of an extremely abrasion-resistant and low friction POM-PTFE Bronze compound. It can be used for hydraulic oil with a mineral oil base, for water-oil emulsions and for fireresistant fluids as well as compressed air. Er ist geschlitzt und hat ein U-förmiges Profil. Er läßt sich leicht spiralförmig einengen und mit seiner Ringnut in eine entsprechende Ringfeder des Zylinderkopfes einschnappen. Durch diese Nut wird er gegen axiale Verschiebung gehalten. It has a U-shaped cross-section and is split with an angled butt joint. It can be spirally compressed inwards for fitting into the rod housing where it springs back out into corresponding installation grooves. The bearing groove arrangement secures it against axial movement. 224

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Bearing Ring with Wiping Function, inside bearing FAI-2

Führungsring mit Abstreiffunktion Bearing Ring with Wiping Function innenführend / inside bearing Bei starker Belastung durch feine Schmutzpartikel (Staub) ist eine Kombination aus Elastomerabstreifer AI und Führungsring FI dem FAI vorzuziehen. FAI In applications where fine dirt particles (dust) are present, the use of wiper type AI combined with bearing type FI is recommended. 225

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Bearing Ring with Wiping Function, inside bearing FAI-3

Führungsring mit Abstreiffunktion Bearing Ring with Wiping Function innenführend / inside bearing FAI Werkstoffe Materials Führungsring Bearing Ring Standard POM-PTFE-Bronze-Compound Standard POM-PTFE-Bronze-Compound Alternativ (auf Anfrage) Ø < 400 POM (gedrehte Ausführung) Ø > 400 PA (gedrehte Ausführung) Alternative (on request) Ø < 400 POM (machined version) Ø > 400 PA (machined version) Einsatzbereich Druck [bar] Standard - Temperaturbereich [°C] -55 ... +120 Application Range Gleitgeschw.keit [m/s] Medium 3 Standard Hydrauliköl, Öl-Wasser, Wasser-Glykol, synth. Flüssigk. pressure temperature...

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