Tag Archives: pulley assembly

China best Pulley Assembly Qy for San Y Crane Spare Part chain pulley

Product Description

Pulley Assembly Qy for San y Crane Spare Part
Part number:

10026775 pulley QY100.1.18-1
10138099 Pulley QY25C.1.4.3-1
10138100 Pulley assembly QY25C.1.4.3
10138116 Pulley QY25C.1.4.4-1
10138120 Xihu (West Lake) Dis. wheel assembly QY25C.1.4.4
10661903 pulley QY75.1.9-1
1 0571 553 pulley QY75.1.13-1
112571 Pulley QY50C.1B.13-1
11205605 Pulley QY50C.1B.13
11498365 Nylon pulley assembly SYM5550J.
A Xihu (West Lake) Dis. wheel assembly QY25.1.4.4
A81970000 0571 Pulley assembly QY52.1.6
Apulley QY25.1.4.4-1
APulley QY52.1.6-1

Product Description

OIL FILTER 65.5710-5032A
BELT,V 135715-05711
BELT,V (AC-GA) 1019D25
OIL FILTER  S00005435
OIL FILTER  85711470
AIR FILTER ASSY 6127-81-7412T TY220
OT03406 T160
PIN 0A45716


Detailed Photos



Product Parameters


Function Display Parameters HS Code 84314999
Condition New Place of Dispatch HangZhou
Application Hoisting Machinery Lead Time Within 15 Workdays
Production Capacity 50000pieces/Year Trademark TOP RUN

Packaging & Shipping


Company Profile


TOP RUN is a professional supplier of construction machinery parts, providing construction machinery products to many CHINAMFG companies such as X C M G, Liu gong, S a n y, Z oomlion, S D L G, Wei chai, Yu chai, etc. TOP RUN not only serves end users, but also rental companies, repair service providers and various dealers. Our business is mainly focused on truck cranes, excavators, wheel loaders, road rollers, bulldozers, graders and dump trucks, but our services also include other construction machinery from China.

TOP RUN prides itself on its wide range of products that meet the diverse needs of the construction machinery industry. Whether it is excavators, bulldozers, wheel loaders, or any other heavy machinery, TOP RUN ensures that customers have access to genuine and quality spare parts, which are essential for the smooth operation and maintenance of their equipment.

TOP RUN maintains strong relationships with the above-mentioned manufacturers, sourcing spare parts directly from the original equipment manufacturers. This direct connection ensures that customers receive genuine parts that meet the strict quality standards set by these renowned companies.

In addition, TOP RUN's team of experts have an in-depth understanding of the specifications and technical requirements of each machine model. They provide valuable help in determining the right spare parts required and provide personalized solutions to meet the specific needs of customers.

In addition to its commitment to providing first-class spare parts, TOP RUN also emphasizes customer satisfaction. They strive to provide efficient customer service, fast order processing, and timely delivery to minimize downtime and keep machines running smoothly.

Overall, TOP RUN is a professional and reliable supplier of spare parts for construction machinery products. With its wealth of knowledge, strong partnerships and dedication to customer satisfaction, TOP RUN continues to support the growth and success of its customers in the construction and heavy machinery industries.

Our Advantages

More than 10 years of construction machinery parts export experience. Have a professional technical service team and export business team.

Directly purchase large quantities of components from the host manufacturer at wholesale price. with the ERP spare parts database query port authorized by the manufacturer, we can quickly check and quote.

Established long-term deep cooperation with FEDEX DHL UPS COSCO MSC Maersk. Because of a large number of deliveries, we can easier to obtain resources conducive to customers in freight and shipping schedule arrangement. /* 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: Support
Warranty: Available
Type: Part
Application: Hoisting Machinery
Certification: ISO9001: 2000
Condition: New
US$ 200/Piece
1 Piece(Min.Order)

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How do pulleys affect the performance of fitness equipment?

Pulleys have a significant impact on the performance of fitness equipment by enabling the smooth and efficient operation of various exercise machines. Here's how pulleys affect the performance of fitness equipment:

1. Resistance Adjustment: Pulleys are often used in fitness equipment to provide adjustable resistance. By incorporating different-sized pulleys or using pulley systems with varying mechanical advantage, the resistance level can be adjusted to meet the user's desired intensity. This allows individuals to customize their workouts and progress in their fitness journey.

2. Cable Systems: Many fitness machines, such as cable machines and functional trainers, utilize pulleys in their cable systems. These pulleys guide the cables and allow for multi-directional movements, providing a wide range of exercise options. The smooth movement facilitated by pulleys enhances user comfort and ensures consistent resistance throughout the exercise motion.

3. Weight Stacks: Weight stack machines commonly found in gyms employ pulleys to create resistance. The weight stack is connected to the exercise handles or levers through a cable and a series of pulleys. As the user performs the exercise, the pulleys help distribute the load and maintain proper cable tension, resulting in smooth and controlled movements.

4. Functional Training: Pulleys play a crucial role in functional training equipment, such as suspension trainers or resistance bands. These systems often feature adjustable pulleys that allow users to target specific muscle groups and perform a wide variety of functional movements. The pulleys enable smooth and controlled resistance, enhancing overall workout effectiveness.

5. Mechanical Advantage: Pulley systems can provide mechanical advantage in fitness equipment, making exercises more manageable and accessible. By utilizing pulleys with appropriate mechanical advantage, individuals can perform exercises that would otherwise require greater strength or effort. This feature is particularly beneficial for users with varying fitness levels or those recovering from injuries.

6. Smooth and Controlled Motion: Pulleys contribute to the smooth and controlled motion of fitness equipment. By reducing friction and providing proper cable alignment, pulleys ensure that the resistance is applied evenly throughout the exercise range of motion. This promotes fluid and natural movements, minimizing the risk of injury and maximizing the effectiveness of the exercise.

7. Durability and Safety: High-quality pulleys used in fitness equipment are designed to withstand the rigors of constant use and heavy loads. They are often made from durable materials and incorporate features such as sealed bearings to minimize maintenance and maximize safety. Reliable pulley systems contribute to the longevity and safety of fitness equipment.

Overall, pulleys are essential components in fitness equipment, influencing resistance adjustment, cable systems, weight stacks, functional training, mechanical advantage, motion quality, and equipment durability. They enhance the effectiveness, versatility, and user experience of fitness machines, allowing individuals to achieve their fitness goals and maintain an active and healthy lifestyle.


How do pulleys work in garage door openers and winches?

Pulleys play a crucial role in both garage door openers and winches, enabling the smooth and efficient operation of these devices. They provide mechanical advantage, facilitate load lifting and lowering, and contribute to the overall functionality and safety of garage door openers and winches. Here's how pulleys work in each of these applications:

1. Garage Door Openers:

In a typical garage door opener system, pulleys are used in conjunction with a motor, drive belt or chain, and a set of cables or torsion springs. The pulleys are mounted on the garage door's torsion bar or header, and the cables or springs are connected to the bottom of the door. Here's how the pulleys work in a garage door opener:

- Motor and Drive Mechanism: The motor drives a pulley or sprocket, which is connected to a drive belt or chain. As the motor rotates the pulley, the drive belt or chain moves, transferring rotational motion to another pulley or sprocket mounted on the torsion bar.

- Torsion Bar and Cables: The torsion bar, equipped with a pulley, is located above the garage door. The cables are threaded through the pulleys and attached to the bottom of the door on each side. When the motor rotates the torsion bar pulley, the cables move, causing the garage door to open or close.

- Mechanical Advantage: By using pulleys, the garage door opener system creates a mechanical advantage. The arrangement of the pulleys and cables or springs helps distribute the load, making it easier for the motor to lift the heavy garage door. This mechanical advantage reduces the strain on the motor and ensures smooth and controlled movement of the door.

2. Winches:

Pulleys are also integral components of winches used for lifting and pulling heavy loads. Winches consist of a drum or spool around which a cable or rope is wrapped, and pulleys are used to guide and redirect the cable or rope. Here's how pulleys work in a winch:

- Load Lifting: The cable or rope is wound around the winch drum, and one end is attached to the load to be lifted or pulled. The other end is connected to a fixed point or a secondary pulley system. As the winch drum rotates, the cable or rope is wound or unwound, allowing the load to be lifted or lowered.

- Pulley Systems: Pulleys are used in winches to redirect the cable or rope, providing a mechanical advantage and ensuring smooth movement. Additional pulleys may be employed to create a block and tackle system, further increasing the mechanical advantage and the winch's lifting capacity.

- Control and Safety: Winches often incorporate braking systems and clutches to control the movement and secure the load. Pulleys play a role in these control mechanisms, helping to regulate the winch's speed and provide reliable stopping and holding power.

Overall, pulleys are essential components in garage door openers and winches, enabling the smooth and controlled movement of heavy loads. They provide mechanical advantage, facilitate load lifting and lowering, and contribute to the efficiency and safety of these devices.


What safety precautions should be observed when using pulleys?

When using pulleys, it is important to observe several safety precautions to ensure the well-being of individuals involved and prevent accidents. Here are some key safety precautions that should be followed:

1. Proper Training: Individuals who operate or work around pulley systems should receive proper training on their usage, including understanding the equipment, safety procedures, and potential hazards. Training should cover topics such as load limits, proper lifting techniques, and the importance of following safety guidelines.

2. Inspections and Maintenance: Regular inspections and maintenance of pulleys are crucial for identifying any signs of wear, damage, or malfunction. Inspect pulleys for cracks, deformation, excessive wear, or any other issues that may compromise their integrity. Replace damaged or worn-out pulleys immediately to prevent accidents.

3. Load Capacity: Ensure that the load being lifted or moved does not exceed the rated load capacity of the pulley system. Exceeding the load capacity can lead to overloading, which may result in equipment failure, accidents, or injuries. Refer to the manufacturer's guidelines or load capacity charts for proper load calculations.

4. Secure Attachment: Ensure that pulleys are securely attached to their mounting points or support structures. Loose or improperly secured pulleys can cause the load to shift or fall, posing significant safety risks. Use appropriate hardware, such as bolts or clamps, and follow manufacturer recommendations for proper attachment methods.

5. Personal Protective Equipment (PPE): Individuals involved in pulley operations should wear the necessary PPE, depending on the specific hazards present. This may include safety helmets, gloves, safety glasses, and appropriate footwear. PPE helps protect against potential injuries from falling objects, impacts, or contact with moving parts.

6. Clear Work Area: Maintain a clear work area around the pulley system. Remove any obstructions, debris, or tripping hazards that could impede safe operation or cause accidents. Adequate space should be provided for safe movement and positioning of individuals involved in the operation.

7. Communication and Signaling: Establish clear communication and signaling protocols when working with pulleys. Use standardized hand signals or communication devices to ensure effective communication between operators, spotters, and other personnel involved. This helps coordinate movements, avoid misunderstandings, and prevent accidents.

8. Emergency Stop Procedures: Familiarize yourself with the emergency stop procedures for the pulley system. Ensure that all individuals involved are aware of how to quickly and safely stop the operation in case of an emergency or unexpected event. Clearly mark emergency stop buttons or switches and ensure they are easily accessible.

9. Lockout/Tagout: If performing maintenance, repairs, or adjustments on the pulley system, follow proper lockout/tagout procedures to isolate energy sources and prevent accidental startup. Lockout/tagout procedures help protect against unexpected movements or releases of stored energy.

10. Risk Assessment: Conduct a thorough risk assessment before using pulleys. Identify potential hazards, evaluate associated risks, and implement appropriate control measures to mitigate those risks. Regularly review and update risk assessments as necessary.

It is essential to consult relevant industry standards, guidelines, and local regulations specific to your application or jurisdiction to ensure compliance with safety requirements when using pulleys.

China best Pulley Assembly Qy for San Y Crane Spare Part   chain pulleyChina best Pulley Assembly Qy for San Y Crane Spare Part   chain pulley
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