This Helical Gear set For helical Gearboxes Lifting Machine is specifically designed for the helical gearboxes of lifting machinery. The helical teeth have smooth meshing, low impact, strong load-bearing capacity, low operating noise and high transmission efficiency. It is has very wear-resistant and fatigue-resistant advantage, suitable for frequent start-stop and heavy-load conditions, and is widely used in the transmission systems of lifting equipment such as cranes and winches.