One example of the applications we have done. Auxiliary pulley of our elevator which was installed in 2008... Unworn, Silent And Vibration-Free Work.
While the pulley selection is made, the criteria such as rope used in machine engine pulley, cabinet design affect the diameter of pulley rope and the pulley sizes.
Pivots used in the pulleys must be mounted in bearing hubs in a precise manner. Pivots should be full-size manufactured in accordance with the desired diameter and it should not create any balance in the pulley hub.
With the use of poor quality castings, abrasions in the pulley channels and abrasions sourced from rope casting will create the annoying sound problem within the cabinet.