The principle of induction heating: induction with the spherical bearing heater with transformer, it works to a large number of turns of primary coil and a secondary coil turns less packed in the same core on. Input and output voltage ratio is equal to the ratio of the number of coil turns, while the energy remains unchanged. Therefore, the secondary coil to produce high currents in low voltage conditions. For induction heater, nsk bearing a short-circuit single turn secondary coil, the conditions of low AC voltage, high current, resulting in a lot of heat. The heater itself and the yoke remain at room temperature. Induced current due to this heating method, bearing will be magnetized.
Important is the degaussing nsk bearings to ensure, so that will not suck the metal magnetic debris during operation. Induction heaters have automatic degaussing. Bearing installation should be the final adjustment of the clearance. Clearance values ??should be specifically identified under different use conditions and with the size of the amount of interference. When necessary, should be tested to determine.
1, the axis of rotation, or shell, to see if it detects something unusual.
2. Then, start without applying the computer load LNSERTED bearing. The observed low-speed rotation conditions, and slowly increase the speed and load, and to stop any noise, vibration and temperature.
3. If there is anything unusual is found during operation, stop the computer and checks are performed.
Review of an unusual noise or noise levels should be produced by someone else installed correctly and nsk bearings running under normal conditions sound familiar.
Check the bearing, do not let LNSERTED bearing exposure to contaminants or moisture environment. If the interruption of work should be based on the greaseproof paper of plastic sheeting or similar material to cover once the machine. Cleaning without disassembling the case may perform a check exposed nsk bearing to coating with the brush coated with petroleum solvent cleaning, then dry with a lint cloth or compressed air (be careful not to bearing assemblies starting rotation). Kind of probe used by a small mirror and similar dentist to check the track surface of the bearing retainer and beads. Not cleaning encryption cover or dust bearing; wipe the external surface can be. If the bearing was damage to the circumstances that need replacing. In the regular downtime and maintenance period to replace LNSERTED bearing much more economic damage due to nsk bearing selected as the sudden stop loss more.
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