Self-lubricating performance
The self-lubricating performance of copper-graphite bearings comes from the unique properties of its graphite composition. Graphite can naturally form a lubricating film on the bearing surface, reducing friction with the shaft or other moving parts. Conventional bearings usually rely on lubricating oil or grease to reduce friction, while copper-graphite bearings do not require external lubricating media. This not only reduces the cost of regular maintenance, but also allows stable operation in environments where conventional lubrication is not possible (such as high temperature, sealed spaces, or places that are not easily accessible). It is particularly suitable for metallurgy, mining and other high-load fields, and can provide reliable support under difficult working conditions.
High temperature resistance
Copper-graphite bearings can work stably in high temperature environments because both copper and graphite have strong high temperature resistance. Copper has good thermal conductivity and heat resistance, and can operate for a long time in environments with temperatures as high as 300°C or even higher. Graphite also has excellent heat resistance and can withstand high temperatures without performance degradation. Therefore, this type of bearing is widely used in high-temperature working environments such as engine systems, smelting equipment, and heat treatment equipment. It can not only maintain excellent lubrication effects, but also ensure efficient and stable operation of equipment.
High load bearing capacity
Copper-graphite bearings can withstand large loads due to the high mechanical strength of copper and are suitable for high-load working conditions. The density and hardness of copper ensure that it will not deform or damage when facing high pressure, thereby maintaining the stability and reliability of the bearing. Whether in pumps, compressors or other heavy-duty machinery, copper-graphite bearings can effectively carry rotating parts, reduce mechanical failures and downtime, extend the service life of equipment, and improve overall production efficiency.
Wear and corrosion resistance
Copper-graphite bearings have excellent wear resistance and can effectively reduce contact wear with moving parts under extreme working conditions. The graphite component not only provides lubrication, but also reduces the friction coefficient and reduces surface damage. In corrosive environments, the corrosion resistance of copper further improves the reliability of the bearing. Copper itself has a natural antioxidant ability that can resist the erosion of moisture, chemical media and other factors, allowing copper-graphite bearings to maintain long-term stable operation in harsh environments, especially suitable for industries such as petroleum, chemical, and power.
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 | ③ | 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 bronze graphite bushings
Machine Tools: Copper-graphite bearings are widely used in machine tools, especially milling machines, lathes and drilling machines. These machines usually require high-precision processing capabilities, and copper-graphite bearings can provide stable support to ensure that the rotating axis does not deviate or vibrate during the processing. Even under high-load working conditions, these bearings can still maintain the stability and precision of the equipment, reduce equipment downtime and extend service life.
Pumps and Compressors: Copper-graphite bearings are particularly suitable for high-load, high-pressure equipment such as water pumps, oil pumps and air compressors. These bearings can effectively resist the mechanical stress caused by high-speed rotation while reducing the loss caused by friction and vibration. Due to their self-lubricating properties, copper-graphite bearings can maintain high-efficiency operation for a long time without external lubrication, greatly improving the reliability and work efficiency of the equipment.
Energy and Chemical Industry
Oilfield Equipment: Copper-graphite bearings are widely used in oilfield machinery and equipment during the extraction of oil and natural gas. These bearings can provide stable support in extreme working environments, especially in highly corrosive and high-temperature environments. Its self-lubricating properties can effectively reduce friction and maintain efficient operation of equipment under harsh conditions, ensuring long-term stability and reliability of the equipment.
Chemical Equipment: Copper-graphite bearings are also widely used in chemical equipment, especially in equipment that handles chemically corrosive substances. Due to their excellent corrosion resistance and high temperature resistance, copper-graphite bearings can maintain stability for a long time in extreme environments. This makes them an indispensable component in many chemical processes, helping equipment maintain high efficiency and reduce the frequency of downtime for maintenance.
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.
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: Is this bearing suitable for applications in high-load environments?
A: Yes, this bearing has a high load-carrying capacity and is particularly suitable for high-load working conditions. Due to the excellent strength of its copper substrate and the self-lubricating properties of graphite, it can effectively share mechanical loads and ensure stability under long-term operation.
Q: 2: Can this bearing work stably and continuously in high-temperature environments?
A: This bearing can continue to work stably in high-temperature environments. The copper material has good heat resistance and can effectively withstand mechanical pressure at high temperatures, while the graphite component helps to maintain its lubricity, even in high-temperature environments.
Q: 3: Can it operate without external lubrication?
A: Yes, one of the biggest advantages of this bearing is its self-lubricating function. Graphite automatically generates a lubricating film during the friction process, reducing friction with other components, thereby achieving operation without external lubrication, which is very suitable for environments where conventional lubrication is not available.
Q: 4: What is the service life of this bearing?
A: Due to its excellent wear resistance and self-lubricating properties, this bearing has a very long service life, especially under high-load and high-temperature conditions, it can withstand long-term wear better than conventional lubricated bearings. The specific life also depends on the actual working environment and load level.
Q: 5: Is this bearing suitable for use in corrosive environments?
A: Yes, the copper substrate of the bearing has good corrosion resistance and can effectively resist the erosion of moisture, salt and certain chemicals. The lubricating function of graphite can also prevent wear and failure in harsh environments, so it is particularly suitable for use in oil and gas production, chemical industry and other highly corrosive environments.
Q: 6: What types of mechanical movements can this bearing withstand?
A: This bearing is very suitable for various types of mechanical movements such as rotation, swing or reciprocating. Due to its self-lubricating and wear resistance, it can provide stable support under various movement conditions and ensure the smooth operation of mechanical systems.
Q: 7: Does this bearing have high maintenance and installation requirements?
A: Due to its self-lubricating characteristics and the advantages of high temperature resistance and wear resistance, the maintenance requirements of this bearing are low. The installation process is relatively simple and does not require additional lubrication management. In addition, it can operate for a long time under various harsh conditions, reducing downtime and maintenance costs.
Hot Tags: bronze graphite bushings, China, suppliers, manufacturers, factory, wholesale, customized, 50 tooth gear, toothed gear, oilite gear, powder metal gears, rocket pinion, racquet pinion