Spindle special bearings Premature aging can cause machine equipment to shut down, resulting in loss of bearings and mechanical equipment. The premature aging of the special bearings for the main shaft may have the following reasons: the bearings are too tightly matched, the lubrication effect is not good, the assembly is not centered, the vibration is obvious, the raw materials are exhausted, and the environment is polluted and corroded. Too tight fit When the bearing is forcibly inserted into the journal, it will cause serious damage to the bottom of the guide rail in the circular motion track, and in severe cases, cracks will appear on the inside, outside and steel balls of the slide rail. There are two ways to check the quality of bearing installation. Observation method: When rotating the bearing end cover with your hands, if the rotation is easy and flexible, and there is no vibration and left and right shaking, it is considered to be up to standard. Micrometer detection method: Assemble the motor end cover equipped with bearings on the notch of the motor shaft, and use a 0.03mm thick micrometer to check the axial gap of the bearing for a week. If the larger gap is just above the middle (the motor is assembled vertically) , it means that the assembly is proper and reliable, otherwise, it means that the assembly is not good. The reason for the poor lubricating effect is that there is a serious lack of clear fat or the oil is dry and aging. Due to the high-speed operation of the spindle and frictional heat, the temperature of the special bearing for the spindle is too high and the esterification fades. The main manifestation is that the steel balls, ball bearings, inner holes and journals of the bearings turn brown or blue. Only when the torque is turned can the rotation be stable. For 37 years, we have been focusing on the production of special bearings for the main shaft! (/gyzzzy.html)
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