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Analyze the application data of SKF bearings
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Therefore, the ferrule of the bearing; the data, function and primary requirements of the tumbling body and the holding frame are as follows. The functions required for the ferrule and the tumbling data: the function required by the tumbling fatigue strength, high hardness, high wear resistance and high durability : Good dimensional stability, high mechanical strength. In addition, it also requires good processability.
NSK has implemented vacuum degassing treatment; therefore; the data used are high in cleanliness, low in oxygen content, good in quality. Persistence of materials: stamping and holding materials; use of low carbon steel; in addition to the above steels; Also use high-speed steel with excellent heat resistance; stainless steel with good corrosion resistance. It is different according to the use; brass plate and stainless steel plate are also used. Then proper heat treatment is selected; the rolling fatigue life of the bearing is obviously improved. Cut the data of the frame; use high-strength brass, carbon steel; also use synthetic resin.
Today; Let's take a look at the application of SKF bearings. The holder is on one side with the ferrule and the rollover; or one of its sides is slidingly touched; one side receives tension and compression. Rolling the bearing ferrule and rollover; Accept high touch pressure; one side with a sliding touch.
For example: with AISL52100 (USA), DIN100Cr6 (West Germany), BS535A99 (UK), etc. are all of the same type of steel. Further demand for impact resistance; use of chrome steel, chrome molybdenum steel, nickel chrome molybdenum steel as bearing data, selection Charcoal quenching; make the steel have a hardened layer from the appearance to the appropriate depth. The carburizing bearing with proper hardening depth, fine arrangement, suitable hardness and core hardness; excellent resistance to bearings bearing bearing steel Impact; the chemical composition of steel for general carburizing bearings.
According to the different uses; there is also demand for impact resistance, heat resistance, corrosion resistance. ferrule and roll body information: ferrules and rollovers generally use high carbon chromium bearing steel. SUJ2 chemical composition; in the world Countries; as a bearing material has been standardized. Large bearings use SUJ3. Most of the bearings; use JJ steel in the SUJ2.
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