Date: 2013-08-22

NSK tapered roller bearing installation

NSK bearing install the tapered roller bearings are separable bearings, the inner and outer rings can be separated. When you install, respectively inner ring cage roller Assembly and mounting on the shaft, separately mounted on the outer ring in the housing bore, as shown in Figure 2-3. While using sleeve mounting, care should be taken, must be placed at one end of the sleeve outer ring side face shall not be placed on a tilt of Raceway surface.
NSK bearings for low speeds and withstand vibration, clearance-free installation, or applying preload to install. The aim is to make rollers and raceways of tapered roller bearings have a good contact, load evenly to prevent destruction of the roller and the Raceway from vibration and impact. After the adjustment, the axial clearance of the size indicator test. By first dial fixed on the frame or housing, the micrometer contacts against the smooth surface of the shaft, along the axis to the left and push the shaft, hands the maximum amount of swing is the axial clearance values. For commissioning and testing temperature in order for the tapered roller bearings roller and the Raceway contact is good, and get a suitable axial clearance, tapered roller bearings after installation and each time you adjust the clearance shall be for commissioning and testing temperature.
Once the NSK bearing vibration values down to a certain level of stability, abnormal sound of emergent. User continues to believe that some of the abnormal sound of bearings. This is because the measurement of the effective value of vibration and abnormal sound does not have a close relationship.
Vibration detection method, are indirect detection method of abnormal sound, detection can be divided into qualitative and quantitative parameters detection method. , Qualitative detection and there are monitoring method of abnormal sound and vibration waveform observation process. Detection refers to quantitative parameters were related to measuring bearing vibration and abnormal sound measurement parameter values such as: vibration peak, crest factor to evaluate abnormal sound of NSK bearings.  

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