Written by [google_authorship] on 29th January 2021
The Tschan -S SV
coupling is a torsionally flexible and puncture-proof claw coupling available
through Tschan suppliers YB Components for fast and free shipping all over the
UK and the rest of the world.
Tschan’s -S SV
flexible coupling is ideally used in applications featuring hydrodynamic high
speed couplings as it can compensate for angular, radial and axial shaft
misalignments (within certain defined limits).
Here we take a
closer look at some of the technical aspects of this high performance flexible
Technical Specifications for Tschan -S SV Coupling
The -S SV coupling
transmits torque via elastic shear loaded buffers which are either
made out of a nitrile rubber called Perbunan or polyurethane material. The buffer
rings made of Perbunan are more electrically conductive than the polyurethane,
making them more suitable for application requiring this capability. The
oil-resistant buffers are inter-connected and form an elastic buffer ring which
dampens shocks and vibrations.
The -S SV
coupling can also be used in every direction of rotation and installation
position, and they have been specially designed to be suitable for use in
potentially explosive atmospheres, according to Directive 94/9/EC. To verify
their suitability for potentially explosive atmospheres, these Tschan couplings
have been classified for equipment groups I and II and equipment categories 2
categorisations mean the -S SV coupling can be used in areas where the presence
of potentially explosive gases, vapours and dust may occur.
Tschan Coupling Installation
foremost it must be stated that there are multiple potential health and safety
hazards involved in replacing such couplings as described here, so the original
manufacturer’s detailed instructions must be checked and adhered to before
attempting to install a new coupling.
The basics of
installing the coupling involve first removing the elastic buffer ring and carefully
cleaning the bore of the coupling hub and the shaft end to ensure all of the
surfaces are clean and dry as well as free of any greasy residue.
Once the elastic
buffer ring has been removed and the bore of the coupling hub has been cleaned
of dirt, dust and grease, you can mount the coupling hub on the shaft end. The
larger variety of these couplings will likely require a mounting tool and a
hoisting device such as a mini-crane or pulley blocks.
The hub should
be mounted so that the shaft end is aligned accurately with the inner
though also be aware of any deviant agreements. Tighten the setscrews by
securing them with an adhesive (Tschan recommend Loctite 222) which will
prevent the screws from coming loose.
There are many
other tips and tricks to successfully mounting Tschan couplings available
through the manufacturer or YB Components themselves.
If you require Tschan
couplings such as the -S SV or any of their other popular models such as the
Posiflex, Posimin, Tormax or Nor-Mex couplings, then contact
who are the UK’s leading Tschan suppliers.