Bearings have always been a very important rotating part in automated and non-automated machinery, so we must always know their working conditions in production and work, so that when damage and failure occur, we will not stop the machine from running. Carry out maintenance on bearings. Real-time monitoring is a good means, but not all mechanical equipment is equipped with such advanced equipment as real-time monitoring. Therefore, in the absence of such equipment, the users and maintenance personnel of our equipment need to maintain a high degree of vigilance for the signals sent by the bearings. When abnormal phenomena such as vibration, noise, temperature, etc. occur, they must not be ignored. diagnosis.
First of all, we can roughly judge the working condition of the bearing through the sound. Experienced staff will use the electronic stethoscope to check whether the sound of the parts is normal. For example, the bearing of the linear guide usually makes a "wheezing" sound when it is working normally. If it makes a sharp hissing or squeaking sound or other irregular sounds, then we need to check it carefully. Bearings for our linear guides too.
When squeaking sounds, it is generally due to insufficient lubrication or unreasonable selection of bearing clearances of linear guides. And if there is an improper operation in the installation, such as the scratch of the knock, it will also make noise, and in this case, the noise made by the bearing will vary with its rotation speed.
If there is intermittent noise, it may be that the rolling parts are damaged, or the instant noodles may be crushed. And if there is a hissing sound, there may be contamination in the bearing of the linear guide. When there is a lot of noise, then unfortunately, your bearing must be seriously damaged.
Although the bearing of the linear guide can hear the quality of the parts with the help of long-term experience, in this case, some major situations have occurred and need to be dealt with immediately, so there is a certain hysteresis. .