Linear motion bearings rolling sound of inspection and maintenance methods

Acoustic generator is used to check the movement of the size of the linear motion bearings of rolling motion and sound quality. Even if there is a slight stripping damaged, linear motion bearings will be abnormal sound and irregular voice, this can be achieved by voice to distinguish. Using auditory recognition of irregular movement is a very common method. For example, to use electronic stethoscope to the anomaly detection component is usually experienced methods used by the operator. If the linear motion bearings in good state of continuous rotation, it will emit a low hum. If you hear high-pitched, arpeggios and other irregular voice usually indicates linear motion bearings in a state of bad contact. Improper lubrication may lead to sharp squeak. Incorrect linear motion bearings clearance can also cause metal sound. Linear motion bearing outer ring concave on the tracks of the orbital sag caused by vibration and produce smooth and crisp voice. If defects caused by installation of detonation also can produce noise, the noise will change with the speed of linear motion bearings. If there are intermittent noise, it may damage the rolling parts. When the damaged surface is crushed, linear motion bearings in pollutants will make the sound. Common reaction damage will produce irregular and big noise. First, linear motion bearings cleaning through the rough washing and fine washing. Used linear motion bearings can be placed in the bottom of the container. Bay, clean, use a painting or analogues to remove grease or adhesive. At this point, if the linear motion bearings in oil, be careful the rolling surface will be damage of foreign bodies, etc. C。 When cleaning, linear motion bearings in oil slowly rotating, must be careful. Usually use the cleaner is neutral nonaqueous diesel or kerosene, sometimes according to need to use temperature lye, etc. No matter use which kinds of detergent, often filter and kept clean. Immediately after cleaning, rust-proof oil or antirust oil on linear motion bearings. Second, the check and judgment: in order to determine whether remove the linear motion bearings can be repeated use, linear motion bearings should check the size accuracy, mainly rotating accuracy, internal clearance, mating surface, raceway surface, cage and sealing ring. About the test results, can be used by the traditional linear motion bearings or to judge the precision linear motion bearings. Determine the standard depends on the mechanical properties and the importance of linear motion bearings, inspection cycle, etc. If linear motion bearing damage and must be replaced, it shall not be reused. A linear motion bearing component damage and defects. B on the surface of the raceway surface rolling spalling.