Carbon Graphite Bearings & Bushings

Carbon Graphite Bearings & Bushings

Carbon graphite bearings & bushings are high-performance components. They possess excellent self-lubricating properties, reducing friction and wear. With good chemical stability, they can withstand corrosive environments. Their high-temperature resistance makes them suitable for various industrial applications, ensuring reliable and efficient operation.

Excellent self-lubricating performance
Carbon graphite material itself has natural self-lubricating properties, and can form a lubricating film during operation, greatly reducing the dependence on external lubricants. This feature allows it to maintain good operating conditions in some special environments, such as clean rooms, vacuum environments, or places where conventional lubrication operations are difficult to perform, reducing wear and failures caused by insufficient lubrication, extending service life and reducing maintenance costs.
Strong chemical stability
It has high tolerance to a variety of chemical substances, and it is difficult to corrode it, whether it is strong acid, strong alkali or corrosive media such as organic solvents. It performs well in corrosive working conditions in chemical, pharmaceutical and other industries, and can effectively avoid structural damage and performance degradation caused by chemical corrosion, ensure the stable operation of equipment in harsh chemical environments, and reduce the frequency of equipment maintenance or replacement of parts due to corrosion.
Outstanding high temperature resistance
It can withstand high operating temperatures and will not easily soften, deform or lose mechanical properties in high temperature environments. It is suitable for high-temperature industrial fields such as metallurgy and glass manufacturing. It can work continuously and stably in the rotating parts of high-temperature furnaces, high-temperature transmission equipment, etc., ensuring the normal operation of the equipment, broadening its application range under high-temperature conditions, and has obvious advantages over ordinary bearing materials.
Low friction coefficient
The friction coefficient between the matching shaft or other components is low, which not only helps to reduce energy loss and improve the operating efficiency of the equipment, but also reduces the heat generated by friction. This is especially important for some equipment with high requirements for precision and temperature control, which can reduce the impact of thermal deformation on the accuracy of the equipment and maintain the high-precision operation and stability of the equipment.

carbon graphite bearings & bushings
 
carbon graphite bearings & bushings
 
carbon graphite bearings & bushings
 
 

 

Product material details table
 

 

Carbon graphite bearings and bushings material properties
Material Material grade Chemical composition (mass fraction)/% Minimum① densityD,①②
/g.cm³
Radial crushing strength K Oil contentP₁④
element Minimum Maximum 10³psi MPa (Volume fraction)/% Minimum Maximum
Bronze (low graphite) CT-1000-K19 Copper, tin, graphite,
other⑤
Margin

9.5

0

0
Margin

10.5

0.3

2.0
19 130 24⑥ 6.0 6.4
CT-1000-K26 Copper, tin, graphite,
other⑤
Margin

9.5

0

0
Margin

10.5

0.3

2.0
26 180 19 6.4 6.8
CT-1000-K37 Copper, tin, graphite,
other⑤
Margin

9.5

0

0
Margin

10.5

0.3

2.0
37 260 12 6.8 7.2
CT-1000-K40 Copper, tin, graphite,
other⑤
Margin

9.5

0

0
Margin

10.5

0.3

2.0
40 280 9 7.2 7.6
Bronze (Medium Graphite) CTG-1001-K17 Copper, tin, graphite,
other⑤
Margin

9.5

0.5

0
Margin

10.5

1.8

2.0
17 120 22⑦ 6.0 6.4
CTG-1001-K23 Copper, tin, graphite,
other⑤
Margin

9.5

0.5

0
Margin

10.5

1.8

2.0
23 160 17 6 7
CTG-1001-K30 Copper, tin, graphite,
other⑤
Margin

9.5

0.5

0
Margin

10.5

1.8

2.0
30 210 9 7 7
CTG-1001-K34 Copper, tin, graphite,
other⑤
Margin

9.5

0.5

0
Margin

10.5

1.8

2.0
34 230 7 7 8
Bronze (high graphite) CTG-1004-K10 Copper, tin, graphite,
other⑤
Margin

9.2

2.5

0
Margin

10.2

5.0

2.0
10 70 11⑧ 6 6
CTG-1004-K15 Copper, tin, graphite,
other⑤
Margin

9.2

2.5

0
Margin

10.2

5.0

2.0
15 100 6 7
①These data are based on finished material. ②Oil-containing. The density of the oil is assumed to be 0.875 g/cm³.
③At the conditions of graphite content (5%) and the highest density (6.6 g/cm³), the material contains only trace amounts of oil. At 3% graphite and a density of 6.2-6.6
g/cm³, the oil content may be 8% (volume).
④With increasing density, the minimum oil content decreases. The values ​​shown in the table are valid up to the upper density limits given.
⑤The maximum iron content is 1%.
⑥At a minimum oil content of 27%, the density range is 5.8-6.2 g/cm³, and the constant K is 105 MPa.
⑦At a minimum oil content of 25%, the density range is 5.8-6.2 g/cm³, and the constant K is 90 MPa.
⑧At a graphite content of 3%, the minimum oil content is 14%.

 

 

 

Application areas of carbon graphite bearings & bushings
 

 

Metallurgical industry
 

The operation site of the metallurgical industry is extremely harsh, with high temperature waves and dust everywhere. The high temperature resistance of this bearing is a key advantage. For example, the peripheral equipment of the high temperature furnace, such as the straightening roller bearing of the continuous casting machine, needs to be in the high temperature radiation range of the hot molten steel for a long time, and the guide bearing of the rolling mill faces the high temperature generated during the steel rolling process. With its excellent high temperature resistance, this bearing sticks to its post in such a high temperature environment, always maintains a stable physical structure, and will not be deformed, twisted or damaged. At the same time, its self-lubricating function and low friction coefficient characteristics shine. In a dusty and harsh environment, general bearings are prone to rapid wear due to dust mixed with lubricants, but it can effectively avoid this problem, ensure the smooth operation of the equipment, greatly improve the reliability of the equipment operation, extend the service life of the equipment, reduce the downtime and maintenance time caused by bearing failure, and provide a solid guarantee for the efficient continuity of metallurgical production.

Computer Vision in the metallurgical industry | AI in steel industry -  NeuroSYS

Machinery manufacturing industry

 

5 Capabilities You Require to Optimize Heavy Equipment Manufacturing

In the field of machinery manufacturing, especially in precision machinery and automation equipment, the low friction coefficient of this bearing plays a pivotal role. Take the screw support of CNC machine tools as an example. The low friction coefficient minimizes the energy loss of the screw during the transmission process, thereby greatly improving the movement accuracy of the equipment and accurately processing parts that meet high-precision requirements. In the transmission joints of the automated production line, its low friction characteristics significantly improve the response speed of each joint, making the equipment run more smoothly and efficiently. It not only reduces unnecessary energy consumption and production costs, but also minimizes mechanical wear and effectively maintains the accuracy of the equipment, so that the equipment can still stably produce high-quality products during long-term operation, improving the production efficiency and product quality level of the entire machinery manufacturing production line.

 

 

 

Why Choose Us
 

 

National High-Tech Enterprise:

As a national high-tech enterprise, Jiande Weijia Technology Co., Ltd. has been actively engaged in scientific and technological research and development and production and manufacturing, and is committed to providing high-quality products and services to our customers.

Application Areas:

Our products are widely used in machinery, electronics, electrical appliances, medical devices, hand/power tools, communications, motorcycles and automobiles. The quality is stable and reliable and is widely praised by customers.

modular-7

System Certification And Product Quality:

The company has obtained ISO9001:2015 and IATF16949:2016 management system certification, and continuously improves product quality and service levels to meet the growing needs of customers. The company has an independent laboratory to conduct strict quality inspections on each batch of products to ensure that each product meets customer requirements. We firmly believe that trust is built on quality and service, so we pay attention to product quality and customer service.

Partners:

The product market and major partners are from Europe and the United States, indicating that our product quality has been recognized by the international market.

 

 

Maybe You Still Want To Know
 

Q: 1: How stable is its base material in a high temperature environment?

A: This base material has excellent high temperature stability. Under high temperature conditions, it can maintain the integrity of its own structure and will not easily soften, deform or other undesirable phenomena. For example, in the application scenarios of transmission components near some industrial furnaces, even if it is subjected to the dual test of high temperature radiation and heat conduction for a long time, it can still maintain its original physical and mechanical properties. This is due to its special internal atomic structure and chemical bonding form, which makes the molecular movement of the material at high temperature still in a relatively orderly state, thereby ensuring the reliable operation of the equipment, reducing the number of downtime maintenance caused by component failure due to high temperature, providing strong support for the continuous production of enterprises, and reducing the high cost caused by frequent replacement of high temperature damaged parts.

Q: 2: What is the self-lubricating mechanism of the material?

A: Its self-lubricating properties are derived from the microstructure and chemical composition of the material itself. During operation, the atoms or molecules on the surface of the material will have some special interactions to form a structure similar to a lubricating film. This "lubricating film" can effectively reduce the friction coefficient between the mating parts and reduce wear. In some environments with extremely high cleanliness requirements and where external lubricants are not allowed to intervene, such as rotating parts in electronic chip manufacturing equipment, it can rely on its own self-lubricating ability to operate stably for a long time. This not only avoids the risk of contamination caused by external lubricants, but also simplifies the maintenance process of the equipment, reduces the investment in maintenance manpower and material resources, and improves the overall operating efficiency and stability of the equipment.

Q: 3: How durable is it in a chemically corrosive environment?

A: In the face of a chemically corrosive environment, it shows strong durability. Whether it is acidic, alkaline or organic solvents and other corrosive media, it is difficult to cause substantial damage to it. In chemical production equipment, for example, in the rotating parts inside the pump body that transports strong acid and strong alkaline solutions, its special chemical composition can prevent chemical reactions with corrosive substances, thereby avoiding problems such as decreased structural strength and dimensional changes caused by corrosion. Compared with traditional materials, its service life in this harsh chemical environment is significantly extended, which greatly reduces the frequency of frequent maintenance or replacement of parts due to corrosion, ensures the continuity of the chemical production process, and reduces the economic losses and production delays caused by equipment downtime and maintenance.

Q: 4: Can its load-bearing capacity meet the needs of industrial applications?

A: It has a certain load-bearing capacity and can meet the general needs of many industrial applications. It can withstand the corresponding load force in both radial and axial directions. In some medium-load industrial equipment, such as ordinary mechanical transmission devices, small processing equipment, etc., it can stably support the rotating parts and ensure the normal operation of the equipment. The stability of its load-bearing capacity comes from the microstructure inside the material, so that when it is loaded, the stress can be evenly distributed, and there will be no excessive wear or damage caused by local stress concentration. This provides a reliable guarantee for the stable operation of industrial equipment, reduces the risk of equipment failure caused by insufficient bearing capacity, helps to improve the efficiency and quality of industrial production, and prolongs the overall service life of the equipment.

Q: 5: How does it perform under high-speed operation conditions?

A: It has good performance under high-speed operation conditions. Due to its low friction coefficient, it generates relatively less heat when rotating at high speed, which effectively reduces the impact of high temperature on itself and surrounding parts. For example, in the rotor support part of a high-speed motor, or the rotating shaft connection of a high-speed centrifuge, it can maintain the stability of the structure and will not deform or break due to the huge centrifugal force generated by high-speed rotation. This enables the equipment to maintain efficient and stable operation during high-speed operation, reduces the number of equipment shutdowns and repairs caused by bearing problems, improves production continuity and economic benefits, and also helps protect other related components and extend the service life of the entire equipment system.

Q: 6: How is its adaptability in a humid environment?

A: In a humid environment, it has good adaptability. Even if it is in a high humidity environment for a long time, it will not quickly deteriorate, rust or lose its original performance due to the intrusion of water. In some humid environment application scenarios such as water conservancy engineering equipment and mechanical devices for seaside operations, it can maintain stable mechanical properties and ensure the normal operation of the equipment. This is because its surface has a special protective layer or its internal structure can effectively prevent the penetration and erosion of water, and reduce corrosion and wear caused by moisture. For example, in some rotating parts of the turbine, which are in a humid and water-flushed environment for a long time, the use of this material can reduce the maintenance frequency, improve the operating reliability of the equipment, and ensure the continuous operation of related operations such as hydropower generation.

Q: 7: What are the advantages of this material in energy saving?

A: From the perspective of energy saving, it has many advantages. First, due to its low friction coefficient, the friction between the equipment and other parts is small during operation, which means that under the same power drive, the equipment can operate more efficiently and reduce energy loss during friction. For example, if this material is used in various transmission devices in industrial production lines, the load of power sources such as motors can be reduced, thereby reducing power consumption. Moreover, because it can maintain good performance under special working conditions such as high temperature and high speed, it avoids additional energy consumption caused by performance degradation, such as the energy consumed by cooling equipment due to overheating, or the energy consumed by frequent maintenance and replacement of parts, etc., achieving energy-saving effects from multiple links, helping enterprises reduce production costs and improve energy efficiency, which meets the requirements of modern industry for energy conservation and emission reduction.

 

 

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