Berges vs pulley
Berges Variable Speed Pulley is a drive consists of two Variable Speed Pulley and a Variable Speed Belt. One pulley is place on the drive shaft, while the other one is spring loaded and placed on the driven shaft.
The speed variation is obtained by turning the knob. The variable speed belt is pulled in or out between the flanges of both the pulleys. By changing the running diameter of the belt, it changes the speed variation.
Normally use on gear boxes or any drives that requires manipulation of speed.
Available type: FSB, KM&Fs, KRM&RF, RD b,RF b