What Are the Materials of Industrial Pulleys?

As an important transmission component, industrial pulley is widely used in various mechanical equipment and industrial fields. It can reduce the working distance of the force, increase the effect of the force, and make the handling and lifting of the object more convenient. So, what are the common materials of industrial pulleys? What are the manufacturing requirements? How does the material affect the performance?

Common material

1. Cast iron

Cast iron has good rigidity and wear resistance, suitable for pulleys bearing larger loads, but the coefficient of friction of cast iron is high, and proper lubrication is required to reduce energy loss.

2. Cast steel

Cast steel pulley has high strength and wear resistance, suitable for bearing large loads and high-speed operation of the crane.

3.High-strength steel

High-strength steel pulley has high strength and low friction coefficient, suitable for occasions that need to reduce energy loss, but also suitable for use in harsh environments.

4. Nylon

Nylon pulley has good wear resistance and corrosion resistance, low coefficient of friction, does not need additional lubrication, suitable for some high requirements of the occasion, such as the food industry.

5. Polyurethane

Polyurethane material has good wear resistance and oil resistance, low friction coefficient, suitable for some special environments and low load cranes.

6. Stainless steel

Has good corrosion resistance, wear resistance and toughness, but the cost is high.

7.Aluminum:

Has a light weight, good corrosion resistance and toughness, but low hardness

Manufacturing requirements

1. Accuracy: The pulley’s diameter, roundness, parallelism and other parameters need to reach a certain accuracy to ensure smooth transmission.

2. Surface quality: The pulley surface should be smooth, without cracks, sand holes and other defects to reduce friction resistance.

3. Strength: The pulley should have sufficient strength to withstand large loads.

4.Toughness: The pulley material should have good toughness to prevent fracture under load.

Characteristics

1. High strength

The pulley carries the weight of the crane during operation, so it needs to have enough strength to resist the load and ensure the safety of its long-term use.

2. Wear resistance

The pulley needs to be in constant contact with the wire rope and other transmission components when working, and the friction is large, so the material needs to have good wear resistance to reduce the energy loss caused by wear and friction.

3. Corrosion resistance

The crane is often in a harsh environment, will encounter moisture, corrosive gases, etc., so the pulley material needs to have a certain corrosion resistance to extend its service life.

4. Low friction coefficient

In order to reduce energy loss, the pulley material needs to have a low friction coefficient to improve transmission efficiency.

5. Impact resistance

During the operation of the crane, the pulley may be subjected to impact, so the material needs to have good impact resistance to ensure that it is not easy to break.

GloryRail has been selling crane pulleys for many years and has rich experience in supplying sheave pulleys. Based on the crane track system, provides customers with one-stop solutions for the crane industry.