A sheave wheel, commonly called a sheave, is a grooved wheel designed to hold and guide a rope, cable, or belt. It rotates on an axle or bearing, allowing the rope or cable to move freely while minimizing friction and wear

Structure:

• Grooved Wheel: The groove holds the rope or cable securely.
• Axle/Bearing: Allows the wheel to spin smoothly.
• Materials: Typically made from metal, plastic, or composite materials depending on use.

Functions of a Sheave Wheel:

• Redirecting Force: Changes the direction of the applied force on a rope or cable, making it easier to lift or move loads (e.g., pulling down to lift up)

• Load Distribution: Helps distribute the load evenly across the rope or cable, improving safety and efficiency

• Reducing Friction: Provides a smooth surface for the rope to run on, reducing friction and wear compared to a direct pull

• Mechanical Advantage: When used in systems with multiple sheaves (like block and tackle), it reduces the force needed to lift heavy loads by creating mechanical advantage

• Power Transmission: Can transmit mechanical power in belt-driven systems

Applications:

Sheaves are widely used in cranes, elevators, sailboats, construction machinery, and other lifting or power transmission systems

. In elevators, for example, the sheave holds the hoist ropes and provides the traction needed to move the cab safely

. In summary, a sheave wheel is a key component in pulley systems that supports and guides ropes or cables, enabling efficient lifting, load movement, and power transmission by changing force direction, reducing friction, and providing mechanical advantage