Ultrahightemperature bearings

In hot rolling mills, extremely large cooling beds accumulate and allow steel plates to cool. They use thousands of bearings, operating in intense heat standing still or ro- tating very slowly. A customer operating this application was using grease lubricated deep groove ball bearings with C4 radial clearance.

High Temp BearingGrease

4. High-temperature bearings are widely used in machinery under high-temperature operations such as metallurgy, furnaces, glass, blast furnaces, painting equipment, etc.

High tempPillow Block bearings

Ordinary structure high temperature bearing: mainly refers to the bearing designed according to the common bearing structure, using high temperature resistant materials such as high temperature resistant bearing steel, etc., mainly including:

High-temperature bearings refer to bearings whose operating temperature is above 150°C. As the chromium bearing steel is used at a temperature exceeding 150℃~C, its hardness will drop sharply, the size will be unstable, and the bearing will not work normally. Therefore, for bearings whose working temperature is 150℃~E～250℃, if the rings and rolling elements are still made of ordinary high-carbon chromium bearing steel, the bearing parts must be subjected to special tempering treatment, which should generally be higher than Tempering is performed at a working temperature of 50°C. The bearing steel that has been tempered according to the above requirements can be used normally at working temperature. However, due to the decrease in hardness after tempering, the bearing life is reduced. When the bearing operating temperature is higher than 250°C, it must be made of high-temperature bearing steel.

-- High-temperature alloy steel: 300-500℃ (its structure includes cage and full rolling elements; the service life is more than one year, recommended)

--  High temperature resistance of ordinary bearing steel: 150-200℃ (the structure is full of rolling elements, the service life is short, and the maintenance cost is high)

Hightemperature bearings SKF

High temperature bearing is a kind of bearing that can withstand high temperature. There are many kinds of high temperature bearing, according to different needs and different environments, different types of bearings can be installed.

Hightemperaturebearing

High temperature bearing can be divided into: ordinary structure high temperature bearing and special structure high temperature bearing. High temperature bearings are widely used in high temperature operation machinery such as metallurgy, kiln, glass, blast furnace, painting equipment, etc.

-- Silicon nitride ceramic rolling element: 800-1200℃ (its structure is full of rolling elements, long service life, high cost)

In transmission systems such as kiln vehicle, blast furnaces or painting equipment, bearings must work at extremely high temperatures, or must withstand extreme temperature differences, ordinary bearings are not suitable. High temperature bearings mainly meet the requirements of various working conditions through optimization design of bearing materials, structure, internal process dimensions and lubrication conditions.

High temperature bearings are mainly used in aviation jet engines, gas turbines, nuclear reactor systems, X-ray tube tungsten disks, and high-speed aircraft, rockets, and spacecraft.