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Glass coating aided by Semiflex shaft coupling

Glass coating aided by Semiflex shaft coupling Abssac supplies precision offset couplings that are specially configured for applications in the vacuum industry. As an example of the benefits they can offer, the Semiflex range has been specified in the innovative field of glass coating technology.

With an ever increasing demand for Low-E demand glass worldwide, high vacuum applications of continuous substrate flow, which can adapt the pressure to process conditions, has meant a huge improvement in glass stability, optical appearance, scratch resistance and standard solar control coatings.

With these increasing demands a reliable drive shaft coupling that delivers high torque, reliability and above all contact velocity is required. The Semiflex shaft couplings are preferred in the connection of the rotary vane pumps and root blowers for exactly this reason. Within the sputtering machines the Semiflex shaft coupling is both compact and extremely torsionally stiff.  However the Semiflex shaft coupling is also very efficient during operation with no restoring forces required to keep shaft alignment. This is an advantage as the machines can have as many as 10 stages all requiring accurate drive connection.

The Semiflex is a torsionally stiff, precision coupling that is without radial restoring forces. Apart from compensating for axial and angular misalignment, the coupling offers high radial misalignment capacity in conjunction with a compact design. The torsionally stiff coupling compensates for misalignment without restoring forces by means of a unique system of two pairs of parallel links arranged at 90° to each other. The angular synchronisation of the connected shafts always remains constant regardless of the misalignment.

Other applications for the Semiflex couplings including printing machines, packaging machines, test units, materials handling and machine tools.
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