| The HF series Speed reduction Variators, built in different sizes and versions, form well-proportioned and compact units that fully satisfy the most varied installation needs on industrial machineries and plants.
Of very simple operation, they are based on the known and tried principle of varying diameters, achieved by the radical shift of a conical driving disc against a clutch ring.
A complete series of multi-stage coaxial reduction units permits the drive shaft to reach any number of revolutions.
Numerous accessories such as gravitational rev. counters on the wheel, electrical servo control units, mechanical controls for rev. variation, electrical devices for reading the speeds and other accessories complete the HF type speed variator series.
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