Introduction
WEARCO is a distributor for BIRN. Vald Birns A/S is one of
Europe’s leading producers of transmission components.
IN THIS SECTION
VTP-Pulley
(Ventilated Turbo Pulley)
VTP-Pulley. The VTP-Pulley is a V-belt pulley in a
completely new design incorporating all aspects of optimised
performance of V-belt pulleys. One of the improvements most
worthy of mention is a combination of design and quality
casting 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.
Iron Quality. The iron quality of GGG 60 allows the
circumferential speed to be increased up to 100 m/sec. and
the wear of the V-belts is considerably smaller than by the
use of grey iron.
Higher Effects Transmission. The V-belts will have a
lower working temperature. Up to 17°C lower than with
standard V-belt pulleys. This is of great importance for the
lifetime of the V-belts.
ACC-Surface Treatment. ACC-surface treatment (Autophoretic
Coating Chemicals) is a new and more efficient surface
treatment of castings. Among other advantages, the
ACC-process adds a higher 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.
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VTP-Pulley Advantages
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Increases the life of the V-belts due to the ventilated
grooves resulting in lowering working temperatures
(10°C-17°C).
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Lower weight means less moments of inertia and requires
smaller bearings. Logistic costs are reduced.
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Is made in nodular cast iron with a new design resulting
in smaller tensions in the pulley.
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VTP-pulleys make it possible to use the V-belt
transmissions at higher ambient temperatures.
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Shock resistant, diminishing risk of damage during
transport and mounting.
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Allows more than a doubling of the belt speed (up to 100
m/s). Test @ 130 m/s.
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New surface treatment. ACC - Autophoretic Coating
Chemicals – ensures improved rust protection.
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