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Ceramic Ball Bearings

Ceramic bearings are bearings made of ceramic material.

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Ceramic Ball Bearings

  • Hybrid ceramic bearing

    Hybrid ceramic bearing

    Hybrid ceramic bearings are bearing's rings made of chrome steel or stainless steel, and bearing's balls made of ceramic balls. Advantages of hybrid ceramic ball bearings: 1. High temperature resistance, ceramic balls have a small thermal expansion coefficient. In high temperature environments, the bearing balls will not expand due to temperature, which greatly increases the operating temperature of the entire bearing. The temperature of ordinary bearings is about 160 degrees, and the ceramic ball can be used. Reach 220 degrees or more. 2. The speed is high, the ceramic ball has oil-free self-lubricating properties, and the friction coefficient of the ceramic ball is small, so the ceramic ball bearing has a high speed. According to statistics, the bearing using the ceramic ball is more than 1.5 times the speed of the general bearing. 3. Long life, the ceramic ball can be added without any grease, that is to say, even if the grease dries out, the bearing can still operate, so as to avoid the occurrence of premature bearing damage caused by the loss of grease in ordinary bearings. According to our test and Some customers have reported that the service life of bearings after using ceramic balls is 2-3 times that of ordinary bearings.

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  • Full ceramic bearing

    Full ceramic bearing

    Full ceramic bearing means that the rolling elements and inner and outer rings are made of ceramic materials. Compared with steel bearings, full ceramic bearings are more resistant to corrosion, high temperature, wear resistance and high rigidity. In the aerospace industry, ceramic rolling bearings have extremely good high-speed performance. In high temperature environments, full ceramic bearings can work reliably at 800-1000°C; in corrosive media, full ceramic bearings can show their unique advantages. Various acid-resistant pumps, vacuum pumps, and centrifugal pumps used in the chemical industry Both pumps and turbomolecular systems have applied full ceramic bearings.

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Ceramic bearings have the characteristics of high temperature resistance, cold resistance, wear resistance, corrosion resistance, anti-magnetic and electrical insulation, oil-free self-lubricating, and high speed. It can be used in extremely harsh environments and special working conditions. It can be widely used in aviation, aerospace, navigation, petroleum, chemical, automotive, electronic equipment, metallurgy, electric power, textiles, pumps, medical equipment, scientific research, national defense and military fields. High-tech products for the application of new materials.
The rings and rolling elements of ceramic bearings are made of all-ceramic materials, including zirconia (ZrO2), silicon nitride (Si3N4), and silicon carbide (Sic). The retainer is made of PTFE, nylon 66, polyetherimide, zirconia, silicon nitride, stainless steel or special aviation aluminum, thereby expanding the application range of ceramic bearings.

First, because ceramics are almost not afraid of corrosion, ceramic rolling bearings are suitable for operation under harsh conditions full of corrosive media.
Second, because the density of the ceramic rolling ball is lower than that of steel, and the weight is much lighter, the centrifugal effect of the outer ring during rotation can be reduced by 40%, and the service life is greatly extended.
Third, ceramics are less affected by thermal expansion and contraction than steel, so when the bearing gap is constant, the bearing can be allowed to work in an environment where the temperature difference changes more drastically.
Fourth, since the elastic modulus of ceramic is higher than that of steel, it is not easy to deform when subjected to force, so it is beneficial to increase the working speed and achieve higher accuracy.

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