There are several main differences between micro bearings and micro ceramic bearings:
1. Material: Micro bearings are usually made of metal materials, such as steel, alloy, etc., while micro ceramic bearings are made of ceramic materials, such as aluminum oxide, silicon nitride, etc. The material of ceramic bearings has characteristics such as high hardness and wear resistance.
2. Friction and wear: Micro ceramic bearings have lower friction coefficient and higher hardness compared to metal bearings, thus providing better wear resistance and reducing losses and heat generated by friction.
3. Temperature stability: Ceramic bearings have high thermal stability and resistance to thermal expansion, and can maintain good stability and operational performance in high-temperature environments. Metal bearings may have problems with thermal expansion and deformation at high temperatures.
4. Corrosion and chemical stability: Ceramic bearings have better corrosion resistance and chemical stability than metal bearings, and can resist the erosion of chemicals such as acids and alkalis, making them more suitable in some special environments.
5. Design and manufacturing: Due to different materials, the design and manufacturing process of ceramic bearings is relatively complex, requiring higher accuracy and technical requirements. In contrast, the design and manufacturing of micro metal bearings are relatively more mature and widespread.
Suitable bearing types need to be selected based on specific application requirements. Micro ceramic bearings can provide better performance and durability in some special application scenarios, but their cost may also be higher. Therefore, various factors need to be comprehensively considered in the selection to meet specific engineering needs.
