The Guide Bar Chain

The lateral movement of the bars that impart the float and overlay movements to the guides can be also obtained using profiled discs or a special chain with links of various heights (the so-called "glider chain").

The chain links can have different heights and lateral radii with respect to one another (picture 128)

Different Chain Links
Picture 128 - A chain link Picture 129 - Chain with links of different height

The radii grant a smooth changeover from one link to another (picture 129) and avoid great differences in the acceleration of bars, thus granting higher operating speeds.

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