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0.1 - 15 Nm

TOOLFLEX® Mini miniature bellow-type couplings

Miniature bellow-type coupling TOOLFLEX Mini - backlash-free and easy to assemble

The miniature bellow-type coupling TOOLFLEX Mini includes the standard series sizes 5 to 20.

Fastening on the shaft by means of setscrews allows for easy and quick assembly of this miniature bellow-type coupling.
The bellow-type coupling is characterized by small dimensions and low mass moments of inertia. The hubs are made of aluminium, the bellow is made of stainless steel.

The range of miniature bellow-type couplings includes both frictionally engaged connections without feather keyway and positive-locking connections with feather keyway.

Features
  • Flexible miniature bellow-type coupling
  • Bellow with 6 layers as a standard, optionally bellow with 4 layers
  • Torques from 0.1 to 15 Nm
  • Application range up to +100 °C
  • Hubs with/without feather keyway
  • Hubs made of aluminium, bonded to the bellow
  • Torsionally stiff
  • Backlash-free
  • Maintenance-free
  • Compensation of axial, radial and angular displacements
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Torsionally stiff and flexible: TOOLFLEX metal bellow-type couplings

TOOLFLEX is a torsionally stiff and flexible metal bellow-type coupling (all-metal coupling) with a bellow made of stainless steel and coupling hubs made of aluminium.
The coupling hubs of our metal bellow-type coupling in size 55 and 65 and as a type KN are made of steel.

The metal bellow ensures optimum compensation of axial, radial and angular displacements with conformal torque transmission. At the same time the geometrical shape of the metal bellow-type coupling provides high torsion stiffness and a low mass moment of inertia. Apart from that it is resistant to media effects and critical operating conditions.

Applications of our metal bellow-type coupling TOOLFLEX: Metal bellow-type coupling for drive technology, automation technology, medical technology, servo drives, packaging technology, machine tools, etc.
For the different applications and mounting conditions of the TOOLFLEX metal bellow-type couplings two different bellow lengths are available.

Metal bellow-type couplings by KTR Systems:

Operating principle of a bellow-type coupling:

The connection between bellow and hubs is made in three different versions: For sizes 5 to 12 the metal bellow is bonded to the hubs. That is why these sizes are permissible for ambient temperatures from -30 °C to +100 °C. For sizes 16 to 45 the bellow-hub-connection is generated by a flanged insert connection which ensures torque transmission of every single bellow layer. The bellow-hub-connection of sizes 55 and 65 is made by a welded connection.

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