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CeraDyna A Series
CeraDyna A fan series has been introduced to the market for more than two years. Its bearing system features a well machined and polished ceramic shaft along with a fine alloy sleeve. The ceramic shaft possesses adequate hardness that results in very high wear resistance. The surface of the shaft is machined and polished (Figure 1), reflecting a smooth and shiny texture that conventional SUS shaft can¡¦t compete (Figure 2). Not only can this hard and fine surface preserve its original quality for an extreme long period of time of operation, it also comes with the run-in polishing effect on the alloy sleeve.
Figure 3 and 4 shows the surface of the ceramic shaft before any operation and the surface of the ceramic shaft after a very long period time of high temperature operation (acceleration test). It can easily be seen that how durable the ceramic shaft is and, it is hard to find any difference before and after a long period time of operation.
Figure 5 shows the roundness measurement for comparison. On the other hand, the alloy sleeve is rather polished during the fan operation (Figure 6), such that the alloy sleeve is also able to sustain a very long period of time of operation. The perfect match of the ceramic shaft and the alloy sleeve results in a very smooth and quite operation, with exceptionally long service life expectancy. CeraDyna A is, in its essence, different from traditional bearing systems in many perspectives, from material characteristics, processes to precision. A complete comparison can be found in later section. Current CeraDyna A fan series ranges from 25 mm to 120 mm, both in axial and centrifugal. It has been applied to different fields of market segments, such as IT, telecom, industry, auto, and home appliances, etc.
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