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Analysis of bearing data
Source: China Bearing Network Time: 2018-04-09
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Roller bearing ferrule and roll body; one side repeatedly accepts high touch pressure; one side carries a rollover touch with the slide. The holder is on one side with the ferrule and the roll body; or one of the sides slides the touch; one side receives the tension and compression Therefore, the ferrule of the bearing; the information, function and primary requirements of the rolling body and the holding frame are as follows.
The functions required for the ferrule and roll data:
Rolling fatigue strength, high hardness, high wear resistance, high durability, and the required functions of the rack:
Good dimensional stability, high mechanical strength; also requires good processability. It is not the same as the use; there is also demand for impact resistance, heat resistance and corrosion resistance.
Information on ferrules and rollovers:
Ferrules and rollovers are usually made of high carbon chromium bearing steel. Most of the bearings; use JUJ.
The chemical composition of SUJ2; in the world; as a bearing material has been standardized. For example: with AISL52100 (United States), DIN100Cr6 (West Germany), BS535A99 (UK) are the same kind of steel.
Further demand for impact resistance; use of chrome steel, chrome molybdenum steel, nickel chrome molybdenum steel as the bearing data, quenching by carburizing; make the steel from the appearance to the appropriate depth has a hardened layer. With appropriate hardening depth, fine Arrangement, suitable for the appearance of hardness and the hardness of the carburizing bearing; the bearing has better impact resistance than the bearing bearing steel; the chemical composition of the steel for ordinary carburizing bearings.
NSK implemented vacuum degassing treatment; therefore; the data used were high in cleanliness, low in oxygen content, and good in quality. The appropriate heat treatment was selected; the life of the rolling tumbling of the bearing was significantly improved.
In addition to the above steel grades; based on special use; also use high-speed steel with excellent heat resistance; stainless steel with good corrosion resistance.
Persistence information:
Stamping the data of the frame; using low-carbon steel. It is not the same as the use; it also uses brass plate, stainless steel plate. Cut the data of the frame; use high-strength brass, carbon steel; also use synthetic resin.
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