FK7 laminar retaining rings

FK7 steel laminar retaining ring/locking ring.

Single and double wound laminar retaining rings

FK7 are single or double wound steel retaining rings. They are available in both internally and externally clamping versions. FK7 retaining rings are used for axial locking and are used in transmission systems, agricultural vehicles and the locking of parts in the automotive industry.

FK7 retaining rings are available in various lock designs with a straight lock, slanted lock or with a recess.

FK7 steel laminar retaining ring/locking ring.

FK7 ESB

FK7 ESB single-wound retaining ring

The type FK7 ESB are single-wound external retaining rings. These retaining rings are used for axial locking.

FK7 ESB single-wound retaining ring

FK7 ESW

FK7 ESW single-wound retaining ring

The type FK7 ESW are single-wound internal retaining rings for shafts. These retaining rings are used for axial locking.

FK7 ESW single-wound retaining ring

FK7 DSB

FK7 DSB double-wound retaining ring

The type FK7 DSB are double-wound external retaining rings. These retaining rings are used for axial locking.

Advantages of the double-wound versions are:

  • Due to the double winding, the contact with the full circumference of the groove is guaranteed
  • More stable due to the uniform dynamic weight during rotation
  • Possibility of a higher axial load than with single-wound versions

FK7 DSB double-wound retaining ring

FK7 DSW

FK7 DSW double-wound retaining ring

The type FK7 DSW are double-wound internal retaining rings for shafts. 

Advantages of the double-wound versions are:

  • Due to the double winding, the contact with the full circumference of the groove is guaranteed
  • More stable due to the uniform dynamic weight during rotation
  • Possibility of a higher axial load than with single-wound versions

FK7 DSW double-wound retaining ring

FK7 DMS

FK7 steel laminar retaining ring/locking ring.

The type FK7 DMS are double-wound internal retaining rings for shafts with centrifugal force protection.

Advantages of the double-wound versions are:

  • Due to the double winding, the contact with the full circumference of the groove is guaranteed
  • More stable due to the uniform dynamic weight during rotation
  • Possibility of a higher axial load than with single-wound versions

FK7 steel laminar retaining ring/locking ring.

Materials of FK7 laminar retaining rings

Materials of FK7 laminar rings
MaterialTemperatureSurface treatmentColor
C75S DIN 1.0605max. +300°Coiledvariation between silver, light brown and black
C60E DIN 1.1221max. +300°Coiledvariation between silver, light brown and black
50CrV4 DIN 1.8159max. +400°Coiledvariation between silver, light brown and black
CrNi DIN 1.4310max. +450°Coiledvariation between silver, light brown and black

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Would you like more information about Fey laminar rings and direct contact with a technical advisor? Call us on 03 72 39 51 51 or send an email to info@thn.fr. We are happy to help.

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