Ningbo Bund has recently introduced a new type of deep groove ball bearing - hybrid ceramic ball bearing. The inner and outer ring material of the product is bearing steel (Gcr15) ceramic ball mainly composed of silicon nitride (Si3N4), zirconium oxide (ZrO2), alumina (Al2O3) and the like.
The density of Si3N4 ceramics is 3.20g/cm3, which is much lower than the density of bearing steel of 7.85g/cm3. Therefore, the ceramic rolling element can effectively suppress the centrifugal force generated by high-speed rotation and reduce the rolling element load, which greatly expands the application field of rolling bearings. At the same time, the rotational sliding between the rolling element and the raceway surface can be reduced, and the contact fatigue life of the bearing can be significantly improved. Hybrid ceramic ball bearings can be used in applications requiring high speed operation, such as high speed electric spindle bearings, machine tool spindle bearings, dental drill bearings, high speed grinding head bearings, instrument bearings, hard disk drive bearings, etc. It can also be applied to civilian products such as roller skates, model airplanes and electric toys.
According to Mr. Hu, the person in charge of the technical department of Bentun, based on the research on the market, I feel that the hybrid ceramic ball bearing has potential for development, so the company's leadership decided to make the decision to independently develop the product. At the beginning of last year, we started to prepare. Although the main equipment for producing this product is almost the same as the original product of the company, it has different quality control and processing technology from the previously produced products, so it has invested a lot of manpower and material resources. energy. Finally, the company officially launched new products at the beginning of this year, and began to put into mass production in July. It is currently in good operating condition with a monthly production capacity of about 300,000 sets.
The density of Si3N4 ceramics is 3.20g/cm3, which is much lower than the density of bearing steel of 7.85g/cm3. Therefore, the ceramic rolling element can effectively suppress the centrifugal force generated by high-speed rotation and reduce the rolling element load, which greatly expands the application field of rolling bearings. At the same time, the rotational sliding between the rolling element and the raceway surface can be reduced, and the contact fatigue life of the bearing can be significantly improved. Hybrid ceramic ball bearings can be used in applications requiring high speed operation, such as high speed electric spindle bearings, machine tool spindle bearings, dental drill bearings, high speed grinding head bearings, instrument bearings, hard disk drive bearings, etc. It can also be applied to civilian products such as roller skates, model airplanes and electric toys.
According to Mr. Hu, the person in charge of the technical department of Bentun, based on the research on the market, I feel that the hybrid ceramic ball bearing has potential for development, so the company's leadership decided to make the decision to independently develop the product. At the beginning of last year, we started to prepare. Although the main equipment for producing this product is almost the same as the original product of the company, it has different quality control and processing technology from the previously produced products, so it has invested a lot of manpower and material resources. energy. Finally, the company officially launched new products at the beginning of this year, and began to put into mass production in July. It is currently in good operating condition with a monthly production capacity of about 300,000 sets.
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