|
|
Variable Speed -
Sit SpA
VAR Variable Speed Pulleys - 2 Side Moveable
|
|
|
|
|
|
|
|
|
The variable speed pulley is a well established drive designed to give
continuous speed variation at a comparative low cost. The hub is made
from induction hardened steel, hard chrome plated and ground to give
uninterrupted slide fit with flanges. Keys are not used with this
application. Moving flanges give a wide contact area therefore
eliminating uneven belt pressure. The pulley flanges are coupled by
means of nylon sleeve couplings to the outside of the flanges and by two
flats machined on each end of the pulley hub. Two springs situated
inside the nylon coupling give the desired pressure. The pulleys fit
European standard variable speed belts.
There is provision for regreasing the pulley slide ways, although the
grease chambers are pre-packed before leaving the factory. |
|
|
|
|
|
|
|
|
