The bearing used on the machining center is a component that can fix and reduce the load friction coefficient in the process of mechanical transmission. It can also be said that when other parts move relative to each other on the shaft, it is used to reduce the friction coefficient in the process of power transmission and keep the center position of the shaft fixed. Its main function is to support the mechanical rotating body to reduce the mechanical load friction coefficient of the equipment in the transmission process. According to the different friction properties of moving elements, bearings can be divided into rolling bearings and sliding bearings.
Working principle of machining center bearing: the bearing uses smooth metal balls or rollers and lubricated inner and outer ring metal surfaces to reduce friction. These balls or rollers carry the load and support the main shaft of the motor so that the motor (rotor) can rotate smoothly. Then, how to judge whether there is a fault when there is noise in the bearing?
(1) The intermittent sound indicates that there is dirt in the bearing;
(2) Make a clattering sound, indicating that the stream is broken or broken.
(3) The whistling sound indicates that the oil in the bearing is insufficient.
(4) A collision sound is emitted, indicating that the retainer and the streamer collide;
(5) A rhythmic percussion or percussion sound. It indicates that there is peeling phenomenon in the flow or retention;
(6) A very sharp sound indicates that the bearing clearance is too small;