化工用离心泵大部分采用滚动轴承,而滚动元件(滚动体、内外圈滚道及保持器)之间并非都是纯滚动,除个别点外,接触面上各点均有相对滑动。滚动轴承各元件接触面积小,单位面积压力往往很大。因此,如果润滑不良,元件很容易胶合,或因摩擦使温升过高,引起滚动体回火,而使轴承失效。技术资料上所提供的轴承寿命是以润滑 Most chemical centrifugal pumps use rolling bearings, and rolling elements (rolling elements, inner and outer ring raceway and retainer) are not all pure rolling, except for a few individual points, the contact surface points are relatively sliding. Rolling element contact area of ​​small, often large unit area pressure. Therefore, if the lubrication is poor, the components are easily glued or the temperature rise is too high due to friction, causing the rolling elements to be tempered and the bearing to fail. Technical information provided by the bearing life is lubrication