Ceramic bearings and strengths (2)

Source: China Bearing Network Time: 2014-07-29

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The strengths of ceramic bearings When it comes to ceramics, the first thing we think of is the tableware that is commonly used at home. With the development of technology, the physical properties of ceramics are used in various industries including bearing professions. Let us analyze the strengths of the ceramic bearings below!
Top of the list; because ceramics are not afraid of corrosion; so; ceramic rolling bearings are suitable for working under the harsh conditions of corrosive media.
Secondly; because the density of ceramic tumbling balls is lower than that of steel; the component is much lighter; thus, the centrifugal effect of the outer ring can be reduced by 40% during the transition;
Thirdly, the influence of thermal expansion and contraction of ceramics is better than that of steel.
Fourth; because the modulus of elasticity of ceramics is higher than that of steel; it is not easily deformed when subjected to force; thus it is beneficial to improve the working speed; and achieve higher precision.
In summary; because ceramic bearings have so many advantages in use; so the major imported bearing manufacturers such as: SKF bearings; NSK bearings; FAG bearings have touched this category and launched the corresponding products.
The advantages of ceramic bearing and all-steel bearing are explained:
These years; the research and development of ceramic bearings in the country and the table have achieved rich results and substantial development. They have been used in machine tools, chemical engineering, aerospace and other fields and have produced peculiar results.
Ceramic bearings have the following unique advantages over all-steel bearings:
1, the speed and speed can be high - can work under the condition that the dn value exceeds 3 million; and the slip, wear and heat can be reduced,
2, long life, wear resistance - the fatigue life of all ceramic bearings is expected to be 10-50 times longer than all steel bearings; hybrid ceramic bearings; lifespan is also 3-5 times higher than the life of all steel bearings ,
3, the required smoothness is small - the ceramic material has a low friction coefficient; the oil-smooth ceramic bearing is used; in the case of smooth oil thinning or lean oil; its smoothness is still not lower than the traditional smoothing agent commonly used in steel bearings,
4, wear-resistant - because the ceramic materials are lazy data; it is more resistant to corrosion and wear,
5, the rigidity is large - because the ceramic material has a high modulus of elasticity; its rigidity is 15-20% larger than that of a general steel bearing.
6, high temperature resistance - all ceramic bearings can work at temperatures above 500C,
7, low torque - according to the layout; the torque of ceramic bearings is reduced by about 1/3,
8, non-magnetic and non-conductive - ceramic bearings can be protected from magnetic and electrical hazards.
With the deepening of the discussion and the breaking of many production techniques; the prospect of using ceramic bearings in the fields of high speed, high temperature and corrosion resistance will be very impressive.

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