China manufacturer Car Alternator Overrunning Clutch Pulley One-Way Auto Parts Znp Oap F-229363.3 F-559585 F-559868 Steel Pulley Engine Part Belt Pulley supplier

Product Description

Company Profile

HangZhou Doerbee International Trade Co. , Ltd. , located in HangZhou hi-tech Development Zone, ZheJiang Province, the company’s main auto parts, mechanical and electrical supplies. Our company has established long-term and stable cooperative relations with many auto parts factories in ZHangZhoug and ZheJiang provinces. We value credit, abide by contracts, guarantee product quality, win the trust of our customers, and make every effort to follow their needs, continuous product innovation and service improvement. OEM, sample can be customized. We will gradually improve the product types and details, if you have non-standard products need us to help you find Chinese manufacturers, please contact us, send samples, we will be your most responsible and professional partner in China. Looking CHINAMFG to working with you.

Every month, we will go back and forth to each auto parts manufacturer to find and compare all kinds of high quality and low price products for you. If you have samples, but can not confirm the model or name, you can also send samples to us, we will try our best to find out the sample manufacturers in China, compare the quality for you, and provide quotation. We represent all kinds of auto parts and mechanical and electrical products, in the future we will continue to improve the product category, please pay attention to us, any need, please feel free to contact us. At present, there are more than 3.3 23151-     S320     F-559868           1610           24-91264      

Q1. How to buy?
A1:Large quantity for more discount : Inquiry → Quotation → Price resonable → Check with specification → Proforma Invoice sent → Payment made → Product shipment → Customer

Q2. What is your terms of payment?
A2:T/T 30% as deposit, and 70% before delivery. We’ll show you the photos of the products and packages before you pay the balance.

Q3. How about your delivery time?
A3:Generally, it will take 20 to 40 days after receiving your advance payment. The specific delivery time depends on the items and the quantity of your order.

Q4. Can you produce according to the samples?
A4:Yes, we can produce by your samples or technical drawings.

Q5. What is your sample policy?
A5:We can supply the sample if we have ready parts in stock, but the customers have to pay the sample and courier cost.

Q6. Do you test all your goods before delivery?
A6:Yes, We will take 100% testing and photos before delivery, and keep communication with you at any time.

Q7: How do you make our business long-term and good relationship?
A7:We are not only partners, but also friends. We will try our best to provide you with the most cost-effective products. If you have any goods that are difficult to purchase, we will try our best to find them in China. We will become your most trusted buyers in China.
  /* January 22, 2571 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1

After-sales Service: 100000 Km
Warranty: 2 Years
Type: Auto Clutch Bearing
Material: Carbon Steel
Tolerance: P5
Certification: TS16949
US$ 8/Piece
1 Piece(Min.Order)

Request Sample



Customized Request


Can pulleys be used in both simple and complex mechanical systems?

Yes, pulleys can be used in both simple and complex mechanical systems. Pulleys are versatile mechanical devices that can be incorporated into a wide range of systems to transmit power, change direction, or provide mechanical advantage.

In simple mechanical systems, pulleys are often used to create a mechanical advantage by reducing the effort force required to lift or move a load. For example, a simple pulley system with a single fixed pulley can distribute the load’s weight over multiple strands of rope or cable, reducing the force needed to lift the load. Simple pulley systems are commonly used in applications such as flagpoles, well buckets, or manual hoists.

In more complex mechanical systems, pulleys can be part of intricate arrangements to achieve specific functions. They can be combined with multiple pulleys, belts or ropes, and other mechanical components to create complex systems for power transmission, tensioning, or precise control. Examples of complex systems that utilize pulleys include conveyor belt systems, industrial machinery, cranes, and elevators.

Pulleys offer several advantages in both simple and complex mechanical systems:

1. Mechanical Advantage: Pulleys can provide a mechanical advantage by distributing the load’s weight over multiple strands of rope or belt, reducing the effort force required to lift or move the load.

2. Direction Change: Pulleys can change the direction of the force applied, allowing for redirection of motion or routing of belts or ropes around obstacles.

3. Speed Adjustment: By adjusting the size of pulleys and the number of pulley systems, the speed of the output motion can be modified relative to the input motion.

4. Power Transmission: Pulleys are effective in transmitting power between shafts or components, allowing for the transfer of rotational motion and torque.

5. Versatility: Pulleys can be used with different types of belts or ropes, such as flat belts, V-belts, timing belts, or wire ropes, providing flexibility in design and application.

Whether in simple or complex mechanical systems, the selection, arrangement, and sizing of pulleys should be carefully considered to ensure proper functionality, efficiency, and safety. Manufacturers’ guidelines, engineering principles, and best practices should be followed when incorporating pulleys into mechanical systems.


Can pulleys be used for both horizontal and vertical lifting?

Yes, pulleys can be used for both horizontal and vertical lifting. The versatility of pulley systems allows them to be utilized in various lifting applications, regardless of the direction of the load. Here’s how pulleys can be used for horizontal and vertical lifting:

1. Horizontal Lifting: In horizontal lifting scenarios, pulleys can be employed to change the direction of the force applied to the load. By using a combination of fixed and movable pulleys, the force can be redirected to pull the load horizontally. This is commonly seen in applications such as manual hoists or block and tackle systems used in construction, where heavy objects need to be moved horizontally across distances.

2. Vertical Lifting: Pulleys are widely used in vertical lifting applications, such as cranes, elevators, and lifting systems. In these setups, the pulleys are typically arranged in such a way that the load can be lifted vertically. By using multiple pulleys and ropes or cables, mechanical advantage can be achieved, making lifting heavier loads easier. The pulleys distribute the load’s weight across multiple lines, reducing the effort required to lift the load.

It’s worth noting that the number and arrangement of pulleys can vary depending on the specific lifting requirements. For example, a single fixed pulley can change the direction of the force but does not provide any mechanical advantage. On the other hand, systems with multiple pulleys, such as compound pulley systems or block and tackle setups, can provide significant mechanical advantage, making lifting heavier loads more manageable.

Whether it is horizontal or vertical lifting, the principles of pulley mechanics remain the same. Pulleys allow for force redirection, mechanical advantage, and load distribution, making lifting tasks more efficient and manageable. The specific configuration and setup of the pulley system will depend on the lifting requirements and the desired level of mechanical advantage.


What are the advantages of using pulleys for mechanical advantage?

Using pulleys for mechanical advantage offers several advantages in various applications. Here are the key advantages:

1. Increased Lifting Capacity: One of the primary advantages of using pulleys for mechanical advantage is that they allow for the lifting of heavier loads with less effort. By distributing the load over multiple segments of rope or belt, pulleys reduce the amount of force required to lift the load. This is especially beneficial in scenarios where manual lifting or limited power is involved.

2. Easier Load Manipulation: Pulleys make it easier to manipulate and control heavy loads. The mechanical advantage provided by pulleys reduces the force needed to move or lift the load, allowing operators to exert less effort. This makes tasks such as lifting, lowering, and positioning heavy objects more manageable and less physically demanding.

3. Safety and Injury Prevention: By reducing the amount of force required to lift heavy loads, pulleys contribute to improved safety and injury prevention. When operators have to exert less physical effort, the risk of strains, sprains, and other lifting-related injuries is significantly reduced. Pulleys enable controlled and smoother load movement, minimizing the risk of sudden shifts or drops that could cause accidents.

4. Precise Load Positioning: Pulley systems provide precise control over load positioning. By using multiple pulleys and adjusting the tension in the rope or belt, operators can achieve precise vertical and horizontal movements of the load. This level of control is particularly valuable in applications that require accurate placement of heavy objects, such as construction, manufacturing, and material handling.

5. Versatility and Adaptability: Pulleys offer versatility and adaptability in various applications. They can be configured in different arrangements and combinations to achieve specific mechanical advantages based on the requirements of the task or load. Pulleys can be easily integrated into existing systems or incorporated into custom-designed setups, making them highly adaptable to different situations.

6. Efficient Power Transmission: Pulleys provide efficient power transmission in mechanical systems. They enable the transfer of rotational motion and force from one component to another with minimal energy loss. The use of pulleys allows for the optimization of power transmission, ensuring effective utilization of available power sources.

7. Cost-Effectiveness: Using pulleys for mechanical advantage can be cost-effective compared to alternative methods. Pulleys are relatively simple and economical devices that can be readily obtained. They require minimal maintenance and have a long operational lifespan. Additionally, pulley systems can often be designed and implemented without the need for complex and expensive equipment.

In conclusion, using pulleys for mechanical advantage offers advantages such as increased lifting capacity, easier load manipulation, safety and injury prevention, precise load positioning, versatility, efficient power transmission, and cost-effectiveness. These advantages make pulleys a valuable tool in a wide range of industries and applications.

China manufacturer Car Alternator Overrunning Clutch Pulley One-Way Auto Parts Znp Oap F-229363.3 F-559585 F-559868 Steel Pulley Engine Part Belt Pulley   supplier China manufacturer Car Alternator Overrunning Clutch Pulley One-Way Auto Parts Znp Oap F-229363.3 F-559585 F-559868 Steel Pulley Engine Part Belt Pulley   supplier
editor by CX