Shanghai Tongzai Bearing Co., Ltd

Address: No. 3329, Jinqian Highway, Fengxian District, Shanghai

Tel: ＋86 21-31261582 ＋86 15000029966

Email: 171087307@qq.com

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Introduction to High-temperature Hybrid Ceramic Bearings:

High temperature hybrid ceramic bearings are a type of bearing that uses ceramic materials as rolling elements, while the inner and outer rings are still made of steel. This design enables the bearing to perform well in high-temperature environments.

The main features of high temperature hybrid ceramic bearings include:

High temperature resistance: The ceramic balls have a low coefficient of thermal expansion, so they will not expand due to temperature changes in a high - temperature environment, which greatly increases the operating temperature of the bearing. The temperature limit of ordinary bearings is around 160 degrees, while the operating temperature of high - temperature hybrid ceramic bearings can reach above 500 degrees.

High rotational speed: Ceramic balls have the property of oil-free self-lubrication and a small coefficient of friction. Therefore, ceramic ball bearings have a very high rotational speed, usually more than 1.5 times that of ordinary bearings.

Long lifespan: Using ceramic balls as rolling elements can prevent premature bearing damage caused by grease drying up, significantly extending the bearing's service life, which is usually 2 to 3 times that of ordinary bearings.

Insulation performance: Ceramic rolling elements are insulators, enabling electrical insulation between the inner and outer rings of the bearing. This makes it particularly suitable for use in conductive environments.

Self-lubrication: Ceramic balls have the property of oil-free self-lubrication. They can operate normally even when the grease dries up, reducing maintenance requirements.

The application scenarios of high-temperature hybrid ceramic bearings mainly include the following types:

Aerospace: During the launch of spacecraft, high temperatures and high - speed operation are the norm. All - ceramic bearings can operate at high speeds continuously without lubrication and are particularly suitable for use in a vacuum environment. In addition, the low - temperature performance of ceramic bearings makes them an ideal choice for satellites and other space exploration equipment.

Racing industry: In extreme environments such as racing cars and racing boats, ceramic bearings can withstand high temperatures, corrosive chemicals, and liquids. For example, boats used in boat races can handle higher loads when equipped with ceramic bearings, and their performance is not affected by seawater.

Medical industry: Medical equipment needs to withstand irritating chemicals during the sterilization process. Steel bearings are prone to corrosion, while wear-resistant ceramic bearings are a better choice, which can extend the service life of the equipment.

Motor and electric drive systems: With the improvement of motor efficiency and the acceleration of high - voltage systems, electrical corrosion has become a problem. Hybrid ceramic ball bearings can prevent electrical corrosion. Due to their excellent insulation properties, they are particularly suitable for environments with high - frequency shaft currents.

High - temperature industrial equipment: In high - temperature operating machinery such as metallurgy, kilns, glass, blast furnaces, and painting equipment, hybrid ceramic bearings can withstand high temperatures and corrosion and maintain stable operation.