Bearing steel inlaid graphite bushing

Bearing steel inlaid graphite bushing

Bearing steel inlaid graphite bushing is a high-performance solid lubricant bearing produced by Mingxu Bearing. It uses GCr bearing steel as the matrix and inlaid with solid lubricants such as graphite or MoS2 on this basis to enhance its lubrication effect and durability. This type of bushing is designed for special working environments such as high temperature, high load, low speed and heavy load, and is widely used in metallurgical continuous casting machines, train brackets, rolling equipment, mining machinery, ships, gas turbines and other occasions.
The design and material selection of bearing steel inlaid graphite bushings enable it to excel in many key aspects, including:

Extremely high compressive resistance:

• By inlaying solid lubricants such as graphite on the steel matrix, inlaid bushings such as JDB-5 are particularly suitable for the supporting parts of lifting machinery. This structure can withstand extreme loads, while the graphite is continuously released during the friction process to form a lubricating film, reduce direct contact, and thus provide extremely high compressive resistance.
• In applications such as excavator supports, winch supports, crane supports, etc., graphite-embedded steel sleeves can effectively disperse pressure, reduce wear, and extend the service life of equipment.
  Excellent wear resistance and chemical stability:
• The SL1 solid lubricant is composed of high-purity graphite and additives, which not only has good wear resistance, but also maintains stable chemical properties at temperatures below 400°C. This enables it to be used in general machinery and atmosphere to maintain long-term lubrication.
• While graphite is used as a lubricant, its chemical stability ensures that no adverse reactions will occur under high temperatures or extreme environments, ensuring the safety and reliability of mechanical operation.
  Excellent lubrication performance and protection function:
• When the embedded graphite works, due to its unique self-lubricating properties, a diaphragm can be formed between the shaft and the sleeve. This diaphragm can effectively prevent direct contact between metals, thereby avoiding the occurrence of bite.
• This design not only protects the integrity of the shaft, but also reduces the maintenance frequency and cost, because the life of the shaft and sleeve has been significantly extended.
  Limitations of high temperature and underwater use:
• Although the graphite bushing performs well under a variety of conditions, the steel properties of its base material GCR15 determine that its application in water or acid and alkali environments is limited. In these cases, it may be necessary to consider the use of other materials or special treatment to meet the use requirements.

In summary, the bearing steel graphite bushing plays an important role in many industrial fields due to its excellent compressive resistance, wear resistance and chemical stability, excellent lubrication and protection functions, and wide applicability. However, its limitations in use at high temperatures and in specific chemical environments are also important factors that must be considered when selecting and applying. By deeply understanding its physical and chemical properties, users can better utilize the advantages of this bushing while avoiding potential application limitations to achieve optimal mechanical performance and equipment protection.

Zhejiang Mingxu Machinery Manufacturing Co., Ltd. has been engaged in the research and development and production of copper alloy components and self-lubricating bearings for more than ten years, and has rich production experience and technical accumulation. Please feel free to contact us for any product and technical questions.