Spooling Application
In spooling operations, the traverse shaft is driven by the bobbin drive shaft to ensure automatic speed synchronization. It's crucial to maintain the speed ratio between the bobbin drive and traverse shafts for accurate pitch adjustments

Where:
- dr = Diameter of Pulley Traverse Shaft
- ds = Diameter of Pulley on Bobbin Drive Shaft
Refer to Figure 16/17 for visual representation.
