Pulleys

The latest addition is the internationally patented VTP®-Pulley, a V-belt pulley in a completely new design incorporating all aspects of optimized performance of V-belt pulleys. One of the improvements most worthy to mention is a combination of design and quality castings, which has resulted in a weight reduction of up to 50 % compared to conventional V-belt pulleys. Furthermore, due to the tilted spokes, the internal tensions of the V-belt pulley are reduced considerably.


Higher effects transmission

The V-belt pulleys will have a lower working temperature – up to 17°C lower than with standard V-belt pulleys. This is a great importance for the lifetime of the V-belt pulley. ACC®–surface treatment is a new and more efficient surface treatment of castings and naturally all of our VTP®–pulleys and the other V–belt pulleys are treated in this plant. Among other advantages the ACC®–process adds a high chemical resistance to oil, petrol, brake fluid and lubricants and exceptional physical properties of the cured film (6H-pencil hardness) and priming paint and finishing paint can be applied direct to the ACC®-surface. This is a very environmentally friendly process, being free from any air pollutants.

The iron quality GGG60 allows the circumferential speed to be increased up to 100 m/s and the resistance to wear of the V–belt pulley against the belt is improved.



MAIN ADVANTAGES:

  • Increases the life of the V-belts due to the ventilated grooves resulting in lower working temperatures (l0°C – l7°C).
  • Lower weight means less moments of inertia and requires smaller bearings. Also logistic costs are reduced.
  • Is made in nodular cast iron with a new design resulting in smaller tensions in the pulley.
  • VTP®-pulleys make it possible to use the V-belt transmissions at higher ambient temperatures.
  • Shock resistant, diminishing risk of damage during transport and mounting.
  • Allows more than a doubling of the belt speed (up to 100 m/s).
  • New surface treatment. ACC® - Autophoretic Coating Chemicals - ensures improved rust protection.
 


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