轴承是机械设备中的通用零件,在机械设备中是用来支承转动的轴或在轴上转动的零件、减少摩擦和磨损、提供便于更换的磨损表面,保护轴颈和轴承座。特别是精密机械设备要求的旋转精度高,使用寿命长,运转刚度好,温升稳定。选用精密滚动轴承,可满足使用要求,而往往在设备运转中,由于没有把握好维修时机造成设备损坏,给企业造成巨大经济损失,因此正确的判断滚动轴承的缺陷显得尤为重要。 Bearings are general-purpose parts used in machinery and equipment. They are used in machinery to support rotating or pivoting parts, reducing friction and wear, providing a wear-resistant surface for replacement, and protecting the journal and housing. In particular, precision machinery and equipment require high precision rotation, long life, good rigidity, temperature stability. Selection of precision rolling bearings to meet the requirements, and often in equipment operation, due to failure to grasp the timing of maintenance damage caused by equipment, causing enormous economic losses to the enterprise, so the correct judgments rolling bearing defects is particularly important.