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Common models and industries of slewing bearings

Rotary bearings: single row ball bearings (01 series, HS series, Q series), double row ball bearings (02 series), three row roller bearings (13 series), single row cross roller bearings (11 series), double row ball bearings (07 series), and lightweight series rotary bearings. Series products can be provided according to the national machinery industry standard JB/T2300-2015, with product models covering various standard and non-standard specifications from 150mm to 4500mm

Single row four point contact ball type rotary bearing (01 series)
The single row four point contact ball type slewing bearing consists of two seat rings, with a compact structure, light weight, and four point contact between the steel ball and the circular arc raceway. It can simultaneously withstand axial force, radial force, and overturning moment. Construction machinery such as rotary conveyors, welding operators, small and medium-sized cranes, and excavators can all be selected.

Double row reducing ball rotary bearing (02 series)

The double volleyball type slewing bearing has three race rings, and the steel balls and isolation blocks can be directly arranged into the upper and lower raceways. According to the force conditions, two rows of steel balls with different diameters are arranged. This open assembly is very convenient, with a bearing angle of 90 ° for both the upper and lower circular arc raceways, which can withstand large axial forces and overturning moments. When the radial force is greater than 0.1 times the axial force, the raceway must be specially designed. The axial and radial dimensions of the double row reducing ball slewing bearing are relatively large, and the structure is tight. Specially suitable for tower cranes, truck cranes, and other loading and unloading machinery that require a medium or larger diameter
Single row cross roller rotary bearing (11 series)
The single row cross roller rotary bearing consists of two race rings, with a compact structure, light weight, high manufacturing accuracy, small assembly clearance, and high requirements for installation accuracy. The rollers are arranged in a 1:1 cross pattern, which can simultaneously withstand axial force, overturning moment, and large radial force. It is widely used in lifting transportation, engineering machinery, and military products.
Three row roller type slewing bearing (13 series)
The three row roller type slewing bearing has three race rings, with separate upper, lower, and radial raceways, allowing the load on each row of rollers to be accurately determined. Being able to withstand various loads simultaneously, it is the product with the highest load-bearing capacity among the four types. Its shaft and radial dimensions are relatively large, and its structure is sturdy. It is particularly suitable for heavy machinery that requires larger diameters, such as bucket wheel excavators, wheel cranes, marine cranes, port cranes, steel waterway turntables, and large tonnage truck cranes.
Lightweight series slewing bearing (WD series)

Lightweight slewing bearings have the same structural form as ordinary slewing bearings, with light weight and flexible rotation. Widely used in food machinery, filling machinery, environmental protection machinery and other fields.
Single row four point contact ball type rotary bearing (HS series)
The single row four point contact ball type slewing bearing consists of two race rings, with a compact structure and four point contact between the steel ball and the circular arc raceway. Mainly used on machinery such as automobile cranes, tower cranes, excavators, pile drivers, construction vehicles, radar scanning equipment, etc. that can withstand overturning moments, vertical axial forces, and horizontal tilting forces.
Single row cross roller rotary bearing (HJ series)

The single row cross roller rotary bearing consists of two race rings, with a compact structure, high manufacturing accuracy, small assembly clearance, and high requirements for installation accuracy. The rollers are arranged in a 1:1 cross pattern, which can simultaneously withstand axial force, overturning moment, and large radial force. It is widely used in transportation, engineering machinery, and military products.
Single row four point contact ball type rotary bearing (Q series)

Single row four point contact ball type slewing bearing, consisting of two seat rings, has a compact structure and light weight. The steel ball is connected to the circular isolated raceway at four points, and can simultaneously withstand axial force, overturning moment, and large radial force. It is suitable for rotary conveyors, welding operators, small and medium-sized overweight machines, and excavators.

Ship industry slewing bearings

Standard CB/T3669-1999. Suitable for marine crane slewing bearings. Also applicable to offshore crane slewing bearings.

2025-01-09/0 Comments/by admin

How do slewing bearing manufacturers ensure timely delivery?

How can slewing bearing manufacturers ensure timely delivery

In the field of mechanical equipment manufacturing, as a key component, the timely delivery of slewing bearings has a crucial impact on the overall production process and customer satisfaction. In order to ensure timely delivery, the slewing bearing manufacturer needs to start from multiple aspects and build an efficient and rigorous supply chain management system.

1、 Strengthen the alignment between production planning and market demand

Firstly, the slewing bearing manufacturer should develop a scientifically reasonable production plan based on market demand and sales plans. By accurately predicting changes in market demand and adjusting production plans in a timely manner, we ensure that production capacity matches market demand. At the same time, maintain close communication with downstream customers, timely understand changes in customer needs, in order to flexibly adjust production plans.

2、 Optimize production processes and techniques

The production process of slewing bearings is complex and involves multiple links. In order to ensure timely delivery, manufacturers need to continuously optimize their production processes and techniques to improve production efficiency. By introducing advanced production equipment and technology, production automation and intelligence can be achieved, reducing the impact of human factors on the production cycle. At the same time, strengthen the monitoring and management of the production process to ensure that each production link can proceed smoothly according to the predetermined plan.

3、 Strengthen supplier management

The performance progress and quality of suppliers directly affect the delivery time of slewing bearings. Therefore, manufacturers need to strengthen their management of suppliers to ensure stable and reliable supply of raw materials and components. Establish long-term stable cooperative relationships with suppliers, sign clear procurement contracts, and specify delivery time and quality requirements. At the same time, regular evaluations and assessments of suppliers are conducted to ensure that they can provide the required materials on time, with quality and quantity.

4、 Establish an efficient logistics system

The logistics process is also one of the important factors affecting delivery time. Rotary bearing manufacturers need to establish an efficient logistics system to ensure that products can be delivered to customers in a timely and accurate manner. By optimizing the logistics network layout, selecting appropriate transportation methods and routes, and reducing transportation time and costs. At the same time, strengthen the tracking and management of logistics information to ensure transparency and visualization of the logistics process.

5、 Strengthen internal communication and collaboration

Communication and collaboration among various departments within the enterprise are also important guarantees for ensuring timely delivery. Rotary bearing manufacturers need to strengthen communication and collaboration between production, sales, procurement, logistics and other departments to ensure smooth information flow between each link. By establishing a sound internal communication mechanism, problems and difficulties that arise during the production process can be resolved in a timely manner to ensure the smooth execution of production plans.

6、 Introducing advanced information management systems

With the development of information technology, the application of information management systems in enterprise management is becoming increasingly widespread. Rotary bearing manufacturers can introduce advanced information management systems, such as ERP (Enterprise Resource Planning) systems, SRM (Supplier Relationship Management) systems, etc., to achieve information management in various aspects of production, sales, procurement, logistics, etc. Through an information management system, key data such as production progress, inventory status, and logistics information can be monitored in real time, providing strong support for enterprise decision-making.

7、 Cultivate a high-quality workforce

Employees are one of the most valuable resources of a company. In order to ensure timely delivery, the slewing bearing manufacturer needs to cultivate a high-quality workforce. By strengthening employee training and education, improving their professional skills and professional ethics, employees can be competent in their respective job positions. At the same time, establish a sound incentive mechanism and assessment system to stimulate employees’ work enthusiasm and creativity.

In summary, in order for slewing bearing manufacturers to ensure timely delivery, they need to start from multiple aspects such as production planning, production processes, supplier management, logistics systems, internal communication, information management systems, and employee team building. By building an efficient and rigorous supply chain management system, we aim to improve production efficiency and delivery capabilities, and meet customer needs and expectations.

2025-01-01/0 Comments/by admin

What are the differences and application scenarios between slewing bearings and roller bearings?

The difference and application scenarios between slewing bearings and roller bearings

In the field of mechanical transmission, slewing bearings and roller bearings are two common types of bearings, each with unique characteristics and a wide range of application scenarios. This article will delve into the differences between slewing bearings and roller bearings, as well as their applications in different fields.

1、 Structural form and composition

The structural form of roller bearings is relatively simple, mainly composed of inner and outer cylindrical bodies and several rows of rollers. When subjected to radial loads, the rollers roll inside the cylinder, reducing friction and achieving the purpose of bearing force. There are many types of roller bearings, including cylindrical roller bearings, tapered roller bearings, needle roller bearings, etc., each type is suitable for different application scenarios.

The slewing bearing is a more complex structure, which adds many balls or rollers between the inner and outer rings to form a slewing frame. This structure enables the slewing bearing to withstand not only radial and axial forces, but also significant rotational moments. In addition, the slewing bearing is usually equipped with a gear ring for rotational drive and a sealing device for dust prevention to ensure its normal low-speed and high load operation.

2、 Scope and characteristics of use

Roller bearings are widely used in various fields such as automobiles, motorcycles, aviation, petroleum, machinery, etc. due to their simple structure, light weight, and easy installation and disassembly. Different types of roller bearings play their respective advantages in different application scenarios. For example, cylindrical roller bearings are suitable for large motors, machine tool spindles, and other occasions, while self-aligning roller bearings are commonly used in heavy-duty or vibration working environments such as paper making machinery and reduction devices.

Slewing bearings are often used for the slewing bearing of large mechanical equipment such as cranes and excavators due to their ability to withstand various loads and large slewing moments. In addition, slewing bearings are widely used in construction machinery and new energy fields such as heavy-duty flatbed transport vehicles, container cranes, gantry cranes, high-altitude work vehicles, etc. Its title as the “joint of the machine” fully reflects its important position in industry.

3、 Usage environment and durability

The usage environment of roller bearings is relatively relaxed, and as long as excessive load and wear are avoided, they can be used for a longer period of time. However, under harsh working conditions such as mines, ports, oil and gas drilling platforms, the durability and anti-corrosion performance of roller bearings may not meet the requirements.

Rotary bearings require long-term operation under these harsh conditions, therefore their durability and corrosion resistance are much higher than roller bearings. In addition, due to the complex structure and high processing requirements of the slewing bearing, the production cost is relatively high. But this also gives it an irreplaceable advantage in situations that require high load and high durability.

4、 Application Cases

Roller bearings: In the automotive industry, roller bearings are widely used in key components such as engines and transmissions to ensure smooth and stable power transmission. In the aviation field, roller bearings are used in aircraft landing gear, engines and other parts to withstand huge impacts and loads.

Slewing bearing: In the crane industry, the slewing bearing is a key component for achieving the slewing of the crane boom. It can not only withstand the weight and load of the boom, but also maintain stable rotational performance under complex working conditions. In fields such as port cranes and marine cranes, the application of slewing bearings is indispensable.

5、 Summary

There are significant differences between slewing bearings and roller bearings in terms of structural form, scope of use, operating environment, and processing cost. The choice of appropriate bearing type depends on the specific application scenario and needs. In practical applications, the most suitable type of bearing should be selected based on factors such as equipment load, working environment, and maintenance requirements. This not only ensures the normal operation and efficient functioning of the equipment, but also reduces maintenance costs and operational risks.

2024-12-07/0 Comments/by admin

The application prospects of slewing bearings in the port loading and unloading industry

The application prospects of slewing bearings in the port loading and unloading industry
introduction

As an important component of the port transportation system, port loading and unloading operations directly affect the cargo throughput, operational efficiency, and safety of the port. With the continuous development of global trade and technological advancement, the performance requirements for port loading and unloading equipment are becoming increasingly high. Among them, the slewing bearing, as a key component, plays an indispensable role in the port loading and unloading industry. This article will explore the current application status and broad application prospects of slewing bearings in the port loading and unloading industry.

Basic concepts of slewing bearings

Rotary bearings, also known as turntable bearings or slewing devices, are large bearings that can withstand comprehensive loads. They have structures such as inner and outer rings and rolling elements, and can simultaneously withstand large axial and radial loads as well as overturning moments. As the core hub in mechanical equipment, the slewing bearing plays an important role in connecting, supporting, and rotating, and is widely used in various devices that require rotational functions.

Application of slewing bearings in port loading and unloading industry
Core components in port loading and unloading equipment

In port loading and unloading operations, equipment such as cranes, stackers, and belt conveyors are indispensable. These devices use slewing bearings to lift, transport, and convey goods, significantly improving operational efficiency. For example, large loading and unloading cranes and gantry cranes achieve precise lifting and transportation of goods through slewing bearings, reducing the difficulty and risk of manual operation and improving the safety and accuracy of operations.

Improve homework efficiency and safety

The application of slewing bearings not only improves the load-bearing capacity of port loading and unloading equipment, but also ensures the stable operation of the equipment under complex working conditions. Its excellent rotational performance and good sealing performance effectively reduce equipment failure rate and maintenance costs. At the same time, the high precision and reliability of the slewing bearing also enhance the safety of loading and unloading operations, avoiding cargo losses and personnel injuries caused by equipment failures.

The application prospects of slewing bearings in the port loading and unloading industry
Technological progress drives industry development

With the continuous advancement of technology, the performance of slewing bearings is also constantly improving. The application of new materials, manufacturing processes, and design concepts has significantly improved the bearing capacity, service life, and reliability of slewing bearings. For example, the introduction of new materials enhances the wear resistance and corrosion resistance of rotary bearings, improving their service life in harsh environments; The improvement of manufacturing technology further enhances the accuracy and reliability of the slewing bearing, meeting the high precision and high efficiency requirements of port loading and unloading equipment.

Market demand continues to grow

With the continuous development of global trade, the demand for port loading and unloading operations is also growing. Especially with the adoption of renewable energy and the expansion of infrastructure, the market demand for port loading and unloading equipment will further expand. As a key component in port loading and unloading equipment, the market demand for slewing bearings will also increase accordingly. Meanwhile, with the continuous advancement of technology and the expansion of application fields, the application of slewing bearings in the port loading and unloading industry will become more extensive, and the market prospects are very broad.

The promotion of intelligent and automated trends

With the continuous development of intelligent and automated technology, port loading and unloading operations will gradually move towards the direction of intelligence and automation. As a core component in mechanical equipment, the control system of the slewing bearing will also become more advanced, enabling more precise rotational motion and higher work efficiency. In the future, slewing bearings will be increasingly combined with intelligent and automated technologies to provide more efficient and convenient solutions for port loading and unloading operations.

conclusion

In summary, slewing bearings have broad application prospects in the port loading and unloading industry. With the continuous advancement of technology and the sustained growth of market demand, the performance of slewing bearings will continue to improve, providing strong support for the stable operation and efficient operation of port loading and unloading equipment. In the future, slewing bearings will play a more important role in the port loading and unloading industry, promoting the sustainable development of the industry. Therefore, for port loading and unloading equipment manufacturers and related enterprises, they should closely monitor the technological development and market trends of slewing bearings, strengthen technological research and product innovation, in order to meet market demand and promote industry progress.

2024-05-07/0 Comments/by admin

How to choose the quality, price, and service of the slewing bearing manufacturer?

In the field of industrial equipment, as a key component for connecting and supporting large rotating structures, the quality, price, and service of slewing bearings directly affect the performance, stability, and operating costs of the entire mechanical system. Faced with numerous slewing bearing manufacturers in the market, how to make a wise choice between quality, price, and service has become an important issue for many buyers and engineers.

1、 Quality: the cornerstone of the foundation stone

Quality first, safety foremost. The quality of the slewing bearing is directly related to the service life, operational efficiency, and safety of the equipment. High quality slewing bearings should have high strength, high wear resistance, good sealing, and precise rotational accuracy. When choosing a manufacturer, special attention should be paid to its production process, raw material selection, quality control system, and historical customer feedback. Field visits, reviewing product testing reports, and understanding whether manufacturers have obtained international quality system certifications such as ISO are effective means of assessing their quality level.

2、 Price: Consideration of cost-effectiveness

Reasonable price, cost-effectiveness is king. Although price is an important factor in procurement, it is by no means the only criterion. Low prices often come with quality risks, and high prices may not necessarily represent the optimal choice. Therefore, when comparing prices, multiple factors such as product performance, quality, and after-sales service should be comprehensively considered to pursue the maximization of cost-effectiveness. At the same time, communicate fully with the manufacturer, understand their pricing strategy, and strive for reasonable price discounts and long-term cooperation conditions.

3、 Service: Ensuring Continuous Value

Service first, create a win-win situation together. Good after-sales service is an extension of product quality and a key factor in customer satisfaction. Excellent slewing bearing manufacturers should provide comprehensive pre-sales consultation, technical support, installation and commissioning guidance, and after-sales maintenance services. When making a choice, you can inquire about the manufacturer’s service response time, service network coverage, and whether they provide customized solutions. In addition, understanding the manufacturer’s customer reputation, especially the evaluation of after-sales service, is crucial for judging their service level.

4、 Comprehensively weigh and make the best decision

To make a decision between quality, price, and service, multiple factors need to be considered comprehensively and balanced. Firstly, clarify one’s own needs, including the equipment’s usage environment, operating conditions, budget range, etc; Secondly, collect sufficient information for comparative analysis through market research, on-site inspections, and communication with multiple manufacturers; Finally, based on the above analysis, combined with the company’s long-term development plan and strategic goals, make the most beneficial decision for oneself.

In short, choosing a slewing bearing manufacturer is a systematic project that requires comprehensive consideration of multiple aspects such as quality, price, and service. Only by finding the best balance between these three can we ensure the procurement of products with high cost-effectiveness, reliable quality, and thoughtful service, providing strong support for the production and operation of enterprises.

2024-03-07/0 Comments/by admin

Common models and industries of slewing bearings

How do slewing bearing manufacturers ensure timely delivery?

What are the differences and application scenarios between slewing bearings and roller bearings?

The application prospects of slewing bearings in the port loading and unloading industry

How to choose the quality, price, and service of the slewing bearing manufacturer?

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Quality determines everything