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Unit for embroidery machine head

Application for the textile industry pdf_blue_large

Unit for embroidery machine head

Unité pour tête de machine à broder


  • Because of the bulkiness and 100% metallic design of the old-generation unit, its rotation speed was limited. The method of linking by driving out created a strong risk of the bearing and the insert becoming disconnected.
  • The rigidity of the metallic components was able to cause the flexible elements to break.
  • Operating noise was higher.



  • On the strength of its 40 years of experience in combining metal and plastic, JESA was able to replace the metallic parts with a carefully chosen engineering polymer.
  • Numerous FEM analyses carried out by the Research and Development Department made it possible to determine an ideal geometry of polymer components and adapt it to the operating conditions.
  • In-depth research, as well as injection tests carried out by the Methods and Industrialisation Department, made it possible for a bearing to be over moulded by a complex asymmetrical shape, whilst bringing under control the distortions transmitted to the ball bearings.



  • A plastic over moulding for the bearing and the insert, to reduce the bulk of the unit by 30%,
  • Elimination of the driving-out method in favour of using the over moulding method,
  • Optimization of the rotating elements with a view to reducing noise and friction.


Customer benefits

  • Increased productivity thanks to an increase in speed of rotation of over 20%.
  • Reduced transport costs due to lighter weight of components.
  • Considerable economic benefits thanks to hybrid unit replacing a completely metallic unit.
  • A more reliable unit thanks to the insertion of metallic elements during the injection procedure. The bearings or inserts can no longer become disconnected from the plastic body.
  • An economical component enabling performance and quality to be increased.
  • Reduced noise and friction.



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