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Bearing 180204 |
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| News details |
Rolling Bearing Ring and Rolling Material Selection
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| Time：2016.10.26 News Sources：Shandong Xinkaite bearing Co.,Ltd. Views：
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Rolling bearing is our daily life is often used in a type of rolling bearings mainly by the outer ring, inner ring, roller and cage combination. For the rolling bearing ring and the rolling body, the choice of material is very important, these two parts can determine the performance of rolling bearings use, we can choose according to the needs of rolling bearing rings and rolling the material.
1, high-carbon chromium bearing steel
The vast majority of bearing rings and rolling elements are colored with special steel manufacturing. With high carbon chromium bearing steel (GCr15 and GCr15SiMn and ZGCr15 and ZGCr15SiMn) manufacturing rings and rolling body, the hardness of its parts are as follows:
With GCr15 and ZGCr15 materials manufactured rings and rollers for the HRc61 ~ 65, the ball is HRc62 ~ 66;
With GCr15SiMn and ZGCr15SiMn materials manufactured rings and rollers HRc60 ~ 64, ball HRc60 ~ 66.
With high-carbon steel bearings made of chromium steel bearings are generally applicable to the working temperature of -40 ~ 130 degrees range, oil and grease lubrication is normal. Can meet the requirements of general machinery.
High carbon chromium bearing steel bearing parts by high temperature back to fire, the adaptation of the working temperature can be as high as 250 degrees.
2, carburizing bearing steel
With carburizing bearing steel and other manufacturing rings and rolling body, the hardness: the ring and the rolling body for the HRc60 ~ 64, generally applicable to the operating temperature range of -40 to 140 degrees Celsius, oil and grease lubrication is normal, can Large shock vibration conditions, such as locomotives and rolling mill bearings, but the steel heat treatment process is more complex.
3, heat-resistant bearing steel
With the heat-resistant bearing steel ring made of rolling body, the hardness: rings and rollers HRc60 ~ 64, ball HRc61 ~ 65, in the case of normal lubrication, suitable for operating temperature of 120 to 250 degrees Celsius, Such as aero-engines, gas turbines and other spindle operating conditions.
4, corrosion-resistant bearing steel
With the corrosion-resistant bearing steel rings and rolling body, its hardness: rings and rolling body should not be less than HRc58, for water, nitric acid, chemical reagents and other corrosive media, the temperature is -253 ~ 350 ° C
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