Analysis of Classification and Application of Hybrid Ceramic Bearings

Source: Bearing network time: 2018-03-11

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There are many kinds of ceramic materials; their composition, microscopic arrangement and function are different. It has been proved that silicon nitride materials have the best physical and mechanical induction functions for bearings. The current annual output of silicon nitride balls worldwide In the millions of grains. For many years; ceramic materials have been the most interesting information for engineers engaged in bearing research. The term "ceramic bearing" generally makes people think that the work made entirely of ceramic is red and hot without having to be smooth. Bearings. Many of the early operations will focus on the study of all-ceramic bearings in high-temperature environments; for example, air turbine engine bearings. The current bearing is still continuing; but the demand for improved smooth systems. The development work has been gathered in The steel ferrule or raceway is a hybrid bearing composed of German fag imported bearing ceramic ball. The hybrid bearing has been used in the occasion where there is an urgent need for the machine tool spindle; and its use is becoming more and more extensive.
When used in machine tools; these features improve productivity and machining accuracy; improve product quality. Traditionally used for high-speed spindle bearings, smooth equipment generally requires oil or oil mist smooth system; due to grease smoothness will reduce all steel bearings Function. On the other hand, the hybrid bearing can safely choose grease smooth. For machine tool builders, the elimination of the oil-smooth system can significantly reduce the cost.
German fag hybrid ceramic bearings for use in aircraft engines are also under development. Air turbine engines operate at high speeds; centrifugal loads on the balls in their bearings; often become a major factor limiting the maximum engine speed. The hybrid bearing of silicon nitride ball provides the possibility of working at higher speeds; in addition, the internal heat of the bearing is less; the component can be significantly reduced.
The most common way to mix ceramic bearings is an angular touch ball bearing with a silicon nitride ball; this type of bearing can effectively work at high speeds with both radial and axial loads. However, axial loads can only be applied from one direction. Therefore, these bearings are generally paired and preloaded to ensure correct touch angle. The angular touch ball bearing and the deep groove ball bearing have larger opening at one end; therefore, the reinforced phenolic resin cage is generally used. Some hybrid bearing products are in the data. Although it only turns the steel ball into a silicon nitride ball; on the other hand; several dimensions of the channel have been improved to optimize the bearing function. Other types of ceramic balls can be used for special occasions; like external bearings And gyro bearings.

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