Example of designation of the FENEX type coupling with the nominal torque of Mn=5000 Nm, hub holes diameters of d1=60 mm, d2=55 mm, hub holes lengths of l1=85 mm, l2=75 mm, size of 250:
5000-60/85-55/75-250 FENEX Flexible coupling
the ”Ex” version – 5000-60/85-55/75-250 FENEX-Ex Flexible coupling
with pilot bores – 5000-ow/85-ow/75-250 FENEX Flexible coupling