The INA bearing calculation load selected in the selection design, the more representative the actual load conditions when the bearing is working, the more accurate the calculation result, so we must extensively and in-depth study the actual load of the thrust cylindrical roller bearing.
If the INA bearing is subjected to heavy loads and it is stationary without turning, this condition is even more unfavorable. Small indentations will form between the rolling elements and the raceways and will quickly develop into pitting, making thrust cylindrical roller bearings early. Failure. In this case, it is necessary to verify the rated static load of the selected bearing, and it is possible to overcome the equivalent static load of this bearing.
At the other extreme, the opposite is true. Bearings run at high speeds, but they do not bear the load, so that the rolling elements often slide on the raceways without rolling. As a result, the bearing temperature rises rapidly, the lubricant degenerates, and the bearings also fail faster, so the bearings Need a minimum load to prevent slipping.
Metal-based inlaid solid self-lubricating bearings: It is a new type of lubricating bearing that combines the characteristics of metal bearings and self-lubricating bearings. The metal matrix bears the load and the specially formulated solid lubricating material acts as a lubricant. It has the characteristics of high bearing capacity, impact resistance, high temperature resistance, and strong self-lubricating ability.
Traditional oil-bearing INA bearings: Because of their low noise and self-lubrication, oil-bearing bearings have become the new darling of computer CPU fan bearings, and the market demand is large. In addition, as people's demand for arrophone is getting higher and higher, oil-bearing bearings The application of daily household appliances is also expanding.
The basic requirements for INA bearings on materials depend to a large extent on the performance of the bearings. The choice of materials for the manufacture of rolling bearings is appropriate and will have a great influence on their performance and life. Under normal circumstances, the main failure modes of thrust cylindrical roller bearings are fatigue spalling under alternating stress, and loss of bearing accuracy due to frictional wear. In addition, there are cracks, indentation, corrosion and other reasons caused by the abnormal damage to the bearing. Therefore, rolling bearings should have high resistance to plastic deformation, low friction and wear, good rotation accuracy, good dimensional accuracy and stability, and long contact fatigue life. And many of these properties are determined by both the materials and the heat treatment process.