What are the advantages and disadvantages of ceramic shafts and metal shafts?

Release time：2024-09-11click：1

Ceramic shaft is formed by isostatic pressing. The ceramic raw material has high toughness, high flexural strength, high wear resistance, and excellent heat insulation properties. , the thermal expansion coefficient is close to steel and other advantages, so ceramic shafts are gradually replacing the work of traditional metal shafts.

Ceramic shafts have the following advantages:

First, since ceramics are almost not afraid of corrosion, ceramic shafts are suitable for operating in harsh conditions full of corrosive media.

Second, because the density of the ceramic bearing rolling balls is lower than that of steel and the weight is much lighter, the centrifugal effect on the outer ring during rotation can be reduced by 40%, thereby greatly extending the service life.

Third, ceramics are less affected by thermal expansion and contraction than steel. Therefore, when the gap between the shafts is constant, the shafts can be allowed to work in environments with drastic temperature changes.

Fourth, since the elastic modulus of ceramics is higher than that of steel, it is not easily deformed when subjected to force, so it is conducive to increasing the working speed and achieving higher precision.

In general, the performance and price ratio of ceramic shafts are far better than that of all-steel shafts, which can save a lot of downtime and maintenance time, reduce the scrap rate, and reduce the inventory of shaft spare parts.

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