chain sheave block

Introduction to Chain Sheave Block

  • High-quality material for durability
  • Smooth operation for efficiency
  • Various sizes available for different applications
  • Easy installation for convenience
  • Corrosion-resistant for longevity

Types of Sheave Pulleys

1. Fixed Pulley

A fixed pulley is attached to a solid structure and does not move. It changes the direction of the force applied to the rope or chain.

2. Movable Pulley

A movable pulley is attached to the load being moved and moves with it. It reduces the amount of force needed to lift the load.

3. Compound Pulley

A compound pulley combines fixed and movable pulleys to provide a mechanical advantage, making it easier to lift heavy loads.

4. Snatch Block

A snatch block is a type of pulley with a side plate that allows the rope or chain to be easily inserted without threading it through the block.

5. Wire Rope Sheave

A wire rope sheave is specifically designed to work with wire ropes, providing smooth movement and reducing wear on the rope.

sheave pulley

6. Timing Belt Pulley

A timing belt pulley is used with a timing belt to transfer rotational motion between shafts in a precise manner.

What is a sheave on a pulley?

  • A sheave on a pulley is the grooved wheel that holds the rope or chain in place.
  • It helps to guide the rope or chain and prevent it from slipping off the pulley.
  • The sheave rotates along with the pulley to facilitate movement.
  • It distributes the load evenly across the rope or chain to prevent wear and tear.
  • The sheave on a pulley can be made of various materials such as steel, aluminum, or plastic.

What are sheaves used for?

  • Sheaves are used to change the direction of a force applied to a rope or chain.
  • They provide a mechanical advantage to make lifting heavy loads easier.
  • Sheaves are essential components in lifting and rigging systems.
  • They help to reduce friction and wear on the rope or chain.
  • Sheaves are commonly used in construction, maritime, and industrial applications.

Process of Sheave Pulley

spa pulley


The mold is created to form the shape of the sheave pulley.


The molten metal is poured into the mold to create the sheave pulley.

Raw Materials

High-quality raw materials are used to ensure durability and performance.


The sheave pulley is manufactured using precision machinery and skilled labor.


Each sheave pulley undergoes rigorous testing to ensure quality and safety standards are met.

Antirust Treatment

The sheave pulley is treated with anti-rust coatings to prolong its lifespan.

Separate Inspection

Each sheave pulley is inspected individually to guarantee quality control.


Final markings are added to the sheave pulley for identification and traceability.

How do you adjust sheave pulleys?

  • Inspect the sheave pulley for any signs of wear or damage.
  • Use proper tools to adjust the tension of the pulley system.
  • Refer to the manufacturer’s guidelines for specific adjustment instructions.
  • Ensure the sheave pulleys are properly aligned for smooth operation.
  • Regularly lubricate the sheave pulleys to prevent friction and wear.
  • Monitor the tension and alignment of the sheave pulleys regularly for optimal performance.
  • If in doubt, consult a professional for assistance in adjusting sheave pulleys.

About HZPT

sheave Pulley

HZPT was established in 2006 and is a manufacturer dedicated to producing precision and high-speed transmission components. Headquartered in Hangzhou, we specialize in producing various precision parts and complex products tailored to your needs. Before establishing an overseas sales team, we began by producing 3D printer parts, anti-theft screws and nuts, camera mounts, and other products. Additionally, we offer assembly production services to save time and cost by eliminating middlemen. With a focus on providing the highest quality, most competitive parts, and excellent service, we aim to assist you in spending your money wisely. Choose HZPT for superior products and service excellence!