China wholesaler Industrial Custom Processing Wheel Hub Bearing Steel Traction Reverse Flow Double Plate Pulley for Drilling Rig supplier

Product Description


Industrial Custom Processing Wheel Hub Bearing Steel Traction Reverse Flow Double Plate Pulley for drilling rig

Product Description

Container crane pulley block,
With high bearing capacity, high wear resistance and long service life

Sheave features:

1) Material: Q235B, Q345B, 35#, 45#, 60#, SSW-QR1, S45C

2) Groove surface quench: HRC45-55

3) Groove surface quench depth: 2mm-2.5mm

4) groove MT after heat treatment and welding line UT and MT

4) Max processing diameter: 2, 000mm

5) Short production cycle

It is used for crane equipment, port equipment, oil drilling rig and so on.


Code Wire rope diameter(mm) Main dimension(mm) Weight for reference(kg)
D D1 R b W D2 B
BX1251 10-14 355 400 7 37 28 55 64 16
BX2251 >14-19 450 510 10 50 38 80 74 28
BX3251 >19-23.5 560 631 12 60 46 95 90 50
BX4251 >23.5-30 710 800 15 73 57 130 106 91
BX5251 >23.5-30 900 1012 19 92 72 160 128 158
BX6251 >30-37 1000 1126 22 104 82 160 128 200
BX7251 >43-50 1250 1402 26 123 98 190 148 394
BX8251 >50-58 1400 1572 29 135 110 190 148 504

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Company Profile

Factory introduction

HangZhou CHINAMFG Metallurgy Equipment Manufacturing Co., Ltd. is a high-tech enterprise registered in HangZhou City of ZheJiang Province, which is mainly engaged in the design and manufacture of spare parts for metallurgy equipment, hoisting machinery, oil drilling rigs, and heavy decelerator boxes.

Our company boasts a professional team who is full of vitality, with high efficiency, and industry minded. Our R&D technicians are highly skilled with rich experience, and possess strong design and development capabilities. There are 2 experts in our company who enjoy the state special allowance. We have carried out broad cooperation with renowned factories and design institutes both at home and abroad.

With advanced design, outstanding manufacturing crafts and vigorous management, the whole manufacturing process of our company is conducted by strictly implementing strict quality management system. Our products are widely used by a great number of steel plants in China and exported overseas, where they have received high praise from our customers.

By following the enterprise philosophy of innovation, quality and creating value for the clients, our company is constantly bringing in advanced technologies from home and abroad. We are committed to taking the enhancement of product quality, safety and reliability as our responsibility and striving for providing high quality products and perfect services to the clients.

HangZhou CHINAMFG Metallurgy Equipment Manufacturing Co., Ltd. Warmly welcomes you to be our distinguished clients and friends.

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Packaging & Shipping


Our Service:

If you are interested in any of our products, please contact me freely! Warmly Welcomed your visit to our factory in China, OEM service will be ok.


Q: What information should I provide if I want to order the products?
1) Product information: Quantity, specification
2) Delivery time required.
3) Shipping information: Company name, address, phone number, destination seaport/air port.
4) Forwarder’s contact details if there is any in China.
Q: How about your payment terms?
A: 30% -50%deposit, with the balance before delivery, we accept T/T and L/C at sight.
Q: Can I use our own logo?
A: Yes, we can produce by using your own logo if you need.
Q: How about sample & MOQ policy?
A: Welcome sample order. MOQ can be 1 set.
Q: What is your lead time for your goods?
A: Normally 30 days after confirmed order,  

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Type: Lifting
Material: Steel
Lifting Capacity: <1T
Fixed Form: Welding Type
Shape: Round
Certification: ISO 9001


Customized Request

bearing pulley

What is the significance of bearing seals and lubrication in bearing pulleys?

Bearing seals and lubrication play a crucial role in bearing pulleys, providing significant benefits and ensuring optimal performance. Here is the significance of bearing seals and lubrication:

1. Contamination Protection:

Bearing seals are designed to prevent the ingress of contaminants such as dust, dirt, moisture, and other particles into the bearing. These seals create a barrier, shielding the internal components of the bearing from harmful substances. By keeping the bearing clean and free from contaminants, the seals help to maintain smooth operation, reduce wear, and prolong the lifespan of the bearing pulley.

2. Lubrication Retention:

Lubrication is essential for minimizing friction and wear between the bearing components. Proper lubrication reduces heat generation, prevents metal-to-metal contact, and ensures smooth rotation of the pulley. Bearing seals help retain the lubrication within the bearing, preventing its leakage or evaporation. This ensures a consistent and adequate supply of lubricant to the bearing surfaces, promoting efficient operation and extending the bearing’s life.

3. Extended Service Life:

The combination of effective sealing and proper lubrication significantly contributes to the extended service life of bearing pulleys. By protecting the bearing from contaminants and ensuring a sufficient supply of lubricant, the seals and lubrication help prevent premature wear, corrosion, and damage to the bearing components. This leads to increased reliability, reduced maintenance needs, and longer intervals between bearing replacements.

4. Performance and Efficiency:

Bearing seals and lubrication directly impact the performance and efficiency of bearing pulleys. Adequate lubrication reduces friction, allowing for smoother rotation and improved power transmission. Reduced friction results in higher efficiency, lower energy consumption, and enhanced overall performance of the pulley system. Additionally, proper sealing prevents the loss of lubricant and maintains the integrity of the bearing, ensuring consistent performance over time.

5. Environmental Adaptability:

Bearing seals provide a level of protection against external environmental conditions. Depending on the application requirements, seals can be designed to withstand specific operating environments, such as high temperatures, moisture, or chemical exposure. This adaptability enhances the suitability of bearing pulleys for a wide range of industrial applications.

6. Maintenance Considerations:

Effective sealing and proper lubrication reduce the maintenance requirements associated with bearing pulleys. Seals help keep contaminants out, reducing the need for frequent cleaning and inspection. Additionally, proper lubrication intervals and techniques ensure that the bearing pulley operates optimally, minimizing the need for premature bearing replacement or costly repairs.

In summary, bearing seals and lubrication are significant for bearing pulleys as they protect against contamination, retain lubrication, extend service life, improve performance and efficiency, adapt to different environments, and reduce maintenance needs. It is crucial to follow manufacturer guidelines for seal selection, lubrication type, and maintenance practices to maximize the benefits and ensure the long-term reliability of bearing pulleys.

bearing pulley

What are some real-world examples of bearing pulleys in industrial machinery?

Bearing pulleys are widely used in various types of industrial machinery to transmit power, change direction, or facilitate movement. Here are some real-world examples of industrial machinery where bearing pulleys play a crucial role:

1. Conveyor Systems:

In industries such as manufacturing, logistics, and mining, conveyor systems are used to transport materials or products from one location to another. Bearing pulleys are utilized in the conveyor belt systems to support and guide the movement of the belt, enabling efficient and continuous material handling.

2. HVAC Systems:

In heating, ventilation, and air conditioning (HVAC) systems, bearing pulleys are employed in belt-driven fans and blowers. These pulleys help drive the rotation of fans, allowing the circulation of air and maintaining the desired temperature and air quality in buildings, factories, and other facilities.

3. Printing Machinery:

In printing presses and other printing machinery, bearing pulleys are utilized to drive the rotation of various rollers. These rollers are responsible for feeding paper, applying ink, and transferring printed materials. The precise movement and synchronization of these rollers are crucial for achieving high-quality printing results.

4. Industrial Mixers:

In mixing and blending equipment used in industries such as food processing, pharmaceuticals, and chemicals, bearing pulleys are employed to drive the rotation of mixing blades or agitators. These pulleys facilitate the efficient blending of ingredients, ensuring uniformity and consistency in the final product.

5. Machine Tools:

In machine tools such as lathes, milling machines, and drills, bearing pulleys are used to transmit power and control the rotational movement of components such as spindles or cutting tools. These pulleys enable precise machining operations and contribute to the overall accuracy and performance of the machine tool.

6. Material Handling Equipment:

In equipment such as forklifts, cranes, and hoists, bearing pulleys are utilized to support and guide the movement of load-bearing components. These pulleys enable smooth lifting, lowering, and horizontal movement of heavy loads, ensuring safe and efficient material handling operations.

These are just a few examples of the diverse applications of bearing pulleys in industrial machinery. Bearing pulleys are versatile components that provide reliable power transmission and movement solutions in various industrial settings.

bearing pulley

Are there different configurations and sizes of bearing pulleys available?

Yes, there are different configurations and sizes of bearing pulleys available to suit various applications and system requirements. Let’s explore the different aspects of configurations and sizes of bearing pulleys:

1. Configuration:

Bearing pulleys can be found in different configurations, each designed for specific purposes:

  • Flat Belt Pulleys: These pulleys have a flat surface and are suitable for use with flat belts or conveyor belts.
  • V-Belt Pulleys: V-belt pulleys have a V-shaped groove that accommodates V-belts, offering better grip and power transmission.
  • Timing Belt Pulleys: Timing belt pulleys have teeth or grooves that mesh with corresponding teeth on timing belts, ensuring precise rotational synchronization.
  • Idler Pulleys: Idler pulleys are used to guide and tension belts in a system, ensuring proper belt alignment and tension.
  • Tensioner Pulleys: Tensioner pulleys are designed to maintain optimal belt tension in belt-driven systems, reducing slippage and improving power transmission.

2. Size:

Bearing pulleys are available in a wide range of sizes to accommodate different applications and load requirements. The size of a bearing pulley is typically determined by its outer diameter, bore diameter, and width. Pulley sizes can vary from small pulleys used in precision equipment to large pulleys used in heavy-duty industrial applications.

3. Material:

As mentioned earlier, bearing pulleys are constructed from various materials such as steel, cast iron, aluminum, nylon, and others. The material selection depends on factors such as load capacity, durability, corrosion resistance, and cost considerations.

4. Customization:

In addition to standard configurations and sizes, bearing pulleys can often be customized to meet specific application requirements. Customization options may include modifications to the pulley design, material selection, surface coatings, and other features tailored to the needs of the system.

Overall, the availability of different configurations, sizes, and customization options allows for the selection of bearing pulleys that best match the requirements of a particular application, ensuring optimal performance and efficiency.

China wholesaler Industrial Custom Processing Wheel Hub Bearing Steel Traction Reverse Flow Double Plate Pulley for Drilling Rig   supplier China wholesaler Industrial Custom Processing Wheel Hub Bearing Steel Traction Reverse Flow Double Plate Pulley for Drilling Rig   supplier
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