Worm shafts are a crucial component in construction hoists due to their numerous advantages:

• High Torque: Worm gears offer a significant reduction in speed, which translates to a substantial increase in torque. This is crucial for lifting heavy loads, a primary function of construction hoists.  
• Self-Locking Mechanism: One of the most significant advantages of worm gears is their self-locking property. This means that the load remains stationary even when the power is removed, ensuring safety and preventing accidental movement.  
• Smooth Operation:Worm gears are known for their smooth and quiet operation, reducing noise and vibration in the hoist system.  
• Compact Design:Worm gear reducers are relatively compact compared to other types of gearboxes, making them suitable for installation in confined spaces within construction sites.  
• Versatility:Worm gears can be used for a wide range of hoisting applications, from small material lifts to large construction elevators.