Hörmann torsion spring shaft coupling for sectional doors, track application N

On sectional doors with torsion springs, the shaft above the door is divided into two parts. The coupling joins them in the middle so that the left and right cable drums turn together and the leaf runs straight. The coupling is part of the door's spring balancing. Inspect it during the annual door check. Replace a damaged or worn coupling as soon as possible.

Which doors

• Series 30 – doors manufactured 25/9/1991 – 31/5/1999.
• Series 40 – doors manufactured from 1/6/1999.
• Track application – N, L, H and other track applications with a torsion spring shaft.

Related parts

• Cable drums – left-hand and right-hand cable drum for track application N, L.
• Springs and ropes – you will find them in the Garage door spare parts category.

Safety

The shaft is loaded by the force of the torsion springs. Do not replace the coupling without relieving the springs; leave the work to a specialist. We carry it out in the Košice and Prešov regions; see the page.