greenlee 649 pipe adapter sheave

Greenlee 649 Pipe Adapter Sheave

1. Durable Construction

The Greenlee 649 Pipe Adapter Sheave is built to last with high-quality materials that ensure durability and longevity.

2. Smooth Operation

This sheave is designed for smooth and efficient operation, reducing friction and wear on cables.

3. Easy Installation

With a user-friendly design, the Greenlee 649 Pipe Adapter Sheave is easy to install and use, saving you time and effort.

4. Versatile Use

Whether you’re working on a construction site or a home improvement project, this sheave is versatile and suitable for various applications.

5. Reliable Performance

You can rely on the Greenlee 649 Pipe Adapter Sheave to deliver consistent performance and meet your needs effectively.

Types of Sheave Pulleys

1. Fixed Pulleys

Fixed pulleys have a stationary axle and are used to change the direction of the force applied to a rope or cable.

2. Movable Pulleys

Movable pulleys have a movable axle and are commonly used in combination with fixed pulleys to create a mechanical advantage.

3. Compound Pulleys

Compound pulleys combine fixed and movable pulleys to increase the mechanical advantage even further.

4. Snatch Blocks

Snatch blocks are designed for heavy-duty lifting and are commonly used in conjunction with ropes or cables to increase lifting capacity.

5. Wire Rope Sheaves

Wire rope sheaves are specifically designed for wire ropes and cables, providing smooth operation and reducing wear.

6. Nylon Sheaves

Nylon sheaves are lightweight and durable, making them ideal for various industrial and commercial applications.

What is a sheave on a pulley?

1. A sheave is a pulley with a grooved wheel that holds a rope or cable.

The grooved wheel allows the rope or cable to move smoothly and efficiently.

2. Sheaves are commonly used in pulley systems to change the direction of a force.

By redirecting the force, sheaves help to lift or move heavy loads with ease.

3. Sheaves can be made of various materials such as steel, aluminum, or nylon.

The material used depends on the application and the load requirements.

4. Sheaves are essential components in many industries, including construction, manufacturing, and transportation.

They play a crucial role in lifting, pulling, and moving heavy objects.

5. Sheaves come in different sizes and designs to accommodate various rope and cable diameters.

Choosing the right sheave ensures smooth operation and optimal performance.

What are sheaves used for?

1. Lifting heavy loads

Sheaves provide mechanical advantage to lift heavy loads with less effort.

2. Changing the direction of a force

Sheaves redirect the force applied to a rope or cable to move objects in different directions.

3. Supporting cables and ropes

Sheaves help to guide and support cables and ropes to prevent tangling and ensure smooth operation.

4. Increasing lifting capacity

By using multiple sheaves in a pulley system, the lifting capacity can be significantly increased.

5. Improving efficiency

Sheaves reduce friction and wear on cables, leading to greater efficiency and longer lifespan of equipment.

6. Providing mechanical advantage

Sheaves amplify the force applied to a rope or cable, making it easier to lift or move heavy objects.

Process of Sheave Pulley

spa pulley


The mold for the sheave pulley is carefully designed and created to ensure precision and consistency in production.


High-quality raw materials are melted and poured into the mold to form the shape of the sheave pulley.

Raw Materials

Only the best materials are used to ensure the durability and performance of the sheave pulley.

sheave pulley


The sheave pulley is manufactured with precision and attention to detail to meet industry standards.


Each sheave pulley undergoes rigorous testing to ensure quality and reliability before being released for sale.

Antirust Treatment

The sheave pulley is treated to prevent rust and corrosion, extending its lifespan and performance.

Separate Inspection

Each sheave pulley is individually inspected to guarantee that it meets the highest standards of quality.


After passing inspection, the sheave pulley is marked with necessary information for identification and traceability.

How do you adjust sheave pulleys?

1. Check alignment

Ensure that the sheave pulleys are properly aligned to avoid unnecessary wear and tear.

2. Adjust tension

Adjust the tension of the cables or ropes running through the sheave pulleys to optimize performance.

3. Lubricate moving parts

Regularly lubricate the moving parts of the sheave pulleys to reduce friction and ensure smooth operation.

4. Inspect for wear

Regularly inspect the sheave pulleys for signs of wear and replace any damaged components promptly.

5. Balance the load

Distribute the load evenly among multiple sheave pulleys to prevent overload and improve efficiency.

6. Consult a professional

If you’re unsure about adjusting sheave pulleys, seek advice from a qualified professional to avoid damage or injury.

About HZPT

sheave Pulley

HZPT was established in 2006 and is a leading manufacturer of precision transmission components based in Hangzhou. We specialize in producing various precision parts and can customize products according to your needs. Before establishing an overseas sales team, we were already producing 3D printer accessories, anti-theft screws and nuts, camera mounts, and more. Additionally, we offer assembly production services to eliminate intermediate steps, saving time and costs. Regardless of the size of your project, we strive to provide you with the highest quality, most competitive components, and the best service. Get us involved early, and we will help you spend wisely!