ntn thrust ball bearings fever increased load on the life

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The machine shaft parts, especially the spindle, the general thrust ball bearing assembly into one, and a high speed rotation, sometimes it will produce high heat. This phenomenon is not immediately removed, ntn bearings will cause overheati ng, and machine tools to the corresponding parts of the temperature rise and thermal deformation, severe spindle and tailstock will not contour, which affects not only the machine itself, precision machining accuracy and ll bearings burned out.roller bearing co
Rated fatigue life, refers to a group of the same type of bearing, operating under the same conditions, wherein 90% of the ntn bearing does not appear to the total number of revolutions caused by the rolling contact fatigue spalling. Constant speed, and more with a total running time to indicate the nominal fatigue life.
Research thrust ball bearings life, you can not only consider the fatigue life, but also to consider the bearing should have performance several use limits. For example, the the greased bearing grease life. Noise life and wear life, etc., according to different purposes, different usage limit reference, and therefore, most of the pre-selected experiences limit.
Therefore, the only investigation ntn bearing damage, the damage is difficult to know the real reason. However, if you know the use of mechanical thrust ball bearings, use conditions, bearings around the structure, to understand the situation before and after the accident, the state of the bearing damage and the visits of several reasons, to prevent similar accidents from happening again.
ntn bearing the judgment is available, mainly on account of the degree of bearing damage, mechanical properties, the importance of operating conditions, to decide during the next overhaul. If the following defects can no longer be used and must be replaced with new thrust ball bearings. The inner ring, an outer ring, rolling elements, on any one of the holder there are cracks or notches.