P&H
Small sheave for P&H bridge crane
This small sheave guides the wire rope and changes the direction of force within the hoisting system. It is designed for use on P&H 20-ton bridge cranes.
Specifications
- Part number
- 307F388
- Brand
- P&H
The small sheave 307F388 is a mechanical component used in the hoisting systems of overhead bridge cranes. It functions by guiding the wire rope and facilitating changes in the direction of force during lifting operations. By providing a controlled path for the rope, the sheave helps maintain proper alignment and tension as the crane moves loads.
This component is manufactured by Harnischfeger Corp. and is compatible with P&H 20-ton bridge cranes. It is installed within the hoist or trolley assembly to manage the movement of the wire rope, ensuring it travels correctly through the lifting mechanism.
In crane systems, sheaves are essential for managing the mechanical advantage of the hoisting assembly. They allow the wire rope to navigate around the crane structure and through the hook block while minimizing friction. Properly functioning sheaves are necessary for the smooth operation of the lifting system and help prevent premature wear on the wire rope by maintaining the correct bend radius and alignment during heavy-duty lifting cycles.

