1. Precautions for use: Since the rolling nsk bearing is an integral part of precision machines, it is required to be cautious when using it. Even if high-performance nsk bearings are used, if they are not used properly, the expected performance effects cannot be achieved. Therefore, the following points should be paid attention to when using nsk bearings: 1. Keep nsk bearings and their surrounding parts clean and prevent dust from entering. 2. Use carefully and avoid strong impact. 3. Use accurate tools and avoid using substitute tools. 4. Pay attention to avoid rusting of nsk bearings, wear gloves, avoid sweating of hands, and pay attention to corrosive gases. Two. Assembly nsk bearing assembly is good or bad, will affect the accuracy of nsk bearings. Life and performance, therefore, please fully study nsk bearing assembly. The assembly method of nsk bearings is generally the case of shaft rotation. Therefore, the inner ring is an interference fit, and the outer ring of nsk bearings and the nsk bearing chamber are clearance fits. 1. The nsk bearings and related parts that need to be cleaned. 2. Check the size and finishing of related parts. 3. Assembly method. 4. Inspection after nsk bearing installation. 5. The addition of lubricants. Three. Operation inspection After the installation of nsk bearings, the operation inspection should be carried out immediately to confirm whether the installation is normal. If abnormal phenomena are found during the operation inspection, the operation should be stopped immediately and the machine should be inspected. Causes and measures. Operation inspection method Mechanical classification Operation method inspection items Small-scale machine manual operation According to the inspection results, if no abnormality is found, turn to power operation jamming (caused by foreign objects, scars, indentations) uneven torque (caused by improper assembly) torque excessive Large (caused by too small gap and assembly error) power operation starts at low speed without load, gradually turns to the specified conditions, and performs rated operation to confirm whether there is any abnormal sound and the change of nsk bearing temperature. Lubricant leakage, discoloration of large machines, power idling operation, and immediately cut off the power after starting without load, and perform idling operation. If there is no abnormality in the inspection result, turn to power operation. Vibration, sound and other power operation are carried out through small machines. According to the inspection items of small machines, abnormal operation status and its causes and countermeasures. Noise, strong metal sound, abnormal load, and correction of fit. Study nsk bearing clearance. Correction assembly of bearing housing flange position.
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