FEY Labyrinth Sealing Rings
FK3 AS SINGLE LAMINAR SEALING RINGS FOR BORES
Protect components in dirty and abrasive environments up to 700oC
General Information
FK3 AS SINGLE LAMINAR SEALING RINGS FOR BORES
Application FK3 AS ‘Outside clamping single laminar sealing rings (1 set = 3 rings)
Single wound laminar sealing rings “FK3 AS” are used as a grease seal for roller and plain bearings and they protect, if greased, against dust entry and ambient moisture. The combined ring sets “FK3 ASK” (additional sealing of the groove base diameter) optimize the sealing effect due to the increased labyrinth effect.
The “FK3 AS” or “FK3 ASK” assemblies are normally preferred over the “FK3 IS” or “FK3 ISK” assemblies due to their easier installation into the grooves. Depending on the applications or the technical requirements, the ring carriers can be manufactured from steel, cast iron, light alloy or plastics.
Permissible circumferential speed (in m/s)Â
Axial and/or radial play
FK3 AS ring set
Axial and/or Radial PlayÂ
The groove width ‘A’ must be widened by twice the play if play occurs in the area of the rings. The groove base diameter ‘D2’ must be reduced by the radial play if radial play occurs. Damage to the rings and the surrounding components occur if this is not adhered to. It is recommended to use the full groove width tolerances, especially in the case of thermal expansion.
Ordering Information
The ring diameter information must match the housing or shaft diameter dimensions ‘D1’ for all enquiries and/or orders. The rings can be ordered individually or in sets (1 set = 3 AS rings).
Run and Installation Tests
Run and installation tests under operating conditions must be performed in each case before standard production of FEY laminar sealing rings can begin to determine whether the desired sealing effects can be achieved.
