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Bearing the advantages and disadvantages of chrome steel and stainless steel materials
by：Waxing
2020-11-19
Bearing material has a good variety of, there are two kinds of common one is chrome steel, one kind is stainless steel, chrome steel and stainless steel with the advantages and disadvantages of those?
Ken iron bearing explanation for you.
Chrome steel is one of the most common bearing material, it is more cheaper than stainless steel prices, more hard, so the service life is longer.
But if at high temperature, its performance is not obvious.
Chrome steel under the high temperature of 120 ℃, it will be a big deformation, load will decrease.
If it continues the high temperature of 150 ℃, it can also endure, but if it is instantly at 150 ℃ or higher temperature, returned to reduce the service life of bearing.
The heat treatment can make the bearing instant high temperature of 170 ℃.
Used for bearings are the most common type of stainless steel 440, it has a hard and strong enough to load, at the same time it also can rust, endure the instant high temperature of 250 ℃ and 300 ℃ high temperature.
Bearing ring and roller materials used with stainless steel (AISI SUS440C
9 cr18mo, 9 cr18 domestic number:)
The vacuum quenching tempering treatment, AISI304 stainless steel cage and seal skeleton materials (
Domestic number: 1 cr18)
。
Compared with the ordinary bearing steel, stainless steel bearing have stronger rust and corrosion resistence, choosing the appropriate lubricant, dust cover and so on, can be in -
60 ℃ ~ + 300 ℃ under the environment of use.
Stainless steel bearing and high mechanical strength, large load capacity, widely used in food processing, medical equipment, pharmaceutical machinery.
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