Model with round hub end helical springs ``VAR.D.E.A.C./TE/IF``
Self-lubricating round hub, maintenance-free.
Couple of mono-expandable pulleys with a phosphating treatment on the disc.
Disc Sliding Adjustment by handwheel.
Max variation Ratio 1:12,3.
Self-aligning during the variation of the speed.
Max ratio 1:12,3 – max power 18,5 Kw.