2011年11月3日星期四

Bearing materials and the relationship between performance

Choice of information bearing on the bearing performance have a positive impact. rolling bearing rings and rolling elements, side suffered repeated high contact pressure, sliding along one side of the rolling contact. Maintain the device, one side with the rings and rolling elements on both sides, one side or the sliding contact, side suffered tension and contraction. Thus, the bearing rings, rolling elements and maintaining the data frame, performance, important requests as follows.
Mobile power pack, Mobile Power Station, USB battery pack, portable mobile power
rings, rolling performance of the requested information: rolling fatigue strength, high hardness, abrasion resistance, high
maintain the aircraft's performance of the requested information: size, good mechanical strength, stability
also have good processability. Use a different basis, as well as request their impact resistance, heat resistance, corrosion resistance.
rings and rolling elements of information: the use of rings and rolling elements are usually high-carbon chromium bearing steel. Large part of the bearing, the use of steel in the JIS SUJ2. The use of large bearings SUJ3.
SUJ2 chemical composition, in the world, as the bearings have been normalized with the data. For example: with AISL52100 (USA), DIN100Cr6 (West Germany), BS535A99 (UK) are the same kinds of steel.
further have impact-resistant case, the use of chromium as an information bearing steel, chrome molybdenum steel, nickel-chromium-molybdenum steel, hardened to infiltration of carbon, the steel from the outside to the proper depth of a softening layer. Softening with appropriate depth, meticulous organization, the appearance of suitable hardness and core hardness of the infiltration of carbon bearings, bearing more than the use of bearing steel with excellent impact resistance, penetration of individual carbon bearing steel chemical composition.
NSK implemented to solve the vacuum degassing, therefore, the use of the data clean and high oxygen content of less good quality. Then take the appropriate thermal solution, the amount of the fatigue life of rolling bearings significant progress.
the steel, the basis for special use, but also the use of high speed steel, excellent heat resistance, and good resistance to corrosion of stainless steel.
maintain aircraft information: press to maintain the data frame, the use of low carbon steel. According to different use, but also the use of brass, stainless steel plate. Cutting to maintain the data frame, the use of high strength brass, carbon steel, in addition, also the use of decomposition of the resin.

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