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FK 3 - AS

Product Description

FK 3 AS Single laminar sealing rings

for bores

Application "FK3 AS" Outside clamping single rings (3 rings = 1 set)

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.

b ring materials

Fey 06 FK3 AS tabelle en
b speed   b axial en   b fk3as en
Fey 06 FK3 AS 1 en   Fey 06 FK3 AS 2 en   Fey 06 FK3 AS 3 en


Axial and/or radial play 3) :

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 occurs if this is not adhered to. It is recommended to use the full groove width tolerances, especially in the case of thermal expansion.

Installation information:

Please click here.

Order information 4) :

The ring diameter information must match the housing or bore diameter dimensions "D1" for all inquiries 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 our laminar rings can begin to determine whether the desired sealing effects can be achieved.

Technical Data Sheet

FK 3 AS Single laminar sealing rings

for bores

Please observe strictly the installation information

Fey 07 FK3 AS tabelle en


Note: Please refer to the information on pages general, installation, greasing and questionnaire.