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6204KA/C3 Bearing |
11,29,2016 |
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6204KA Bearing |
11,29,2016 |
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6204/C4 Bearing |
11,29,2016 |
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6204/C3 Bearing |
11,29,2016 |
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6204 Bearing |
11,29,2016 |
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6204 Bearing |
11,29,2016 |
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Bearing 204TN-Z |
11,28,2016 |
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Bearing 204KA-Z |
11,28,2016 |
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Bearing 0204 |
11,28,2016 |
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Bearing 180204 |
11,28,2016 |
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| News details |
Judging Rolling Bearing Fault Damage Adjustment Preloading Method
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| Time：2016.11.17 News Sources：Shandong Xinkaite bearing Co.,Ltd. Views：
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In order to determine whether the demolition of the bearing can be reused, to check the clean bearings after cleaning. Carefully check the rolling surface, rolling surface, the state with the surface, the cage wear, bearing clearance increases and whether the decline in dimensional accuracy of the damage, abnormal. Non-separation of small ball bearings, then use one hand to support the level of inner ring, rotating outer ring to confirm whether the smooth.
Tapered roller bearings and other separable bearings, the rolling body, outer ring raceway were examined.
Large bearings can not be rotated by hand, pay attention to check the rolling body, raceway surface, cage, retaining surface and other appearance, the importance of bearing the higher the more careful inspection.
The judgment on whether or not the reusability is possible is determined by considering the degree of damage to the rolling bearing, the mechanical properties, the importance, the operating conditions, and the next inspection. However, the following defects can not be used. Must be replaced with new bearings.
Bearing manufacturing noise caused by factors, although essentially due to manufacturing errors, but in fact still with the choice of lubricants, bearing installation conditions, shaft and bearing accuracy of the state. This noise is divided into two kinds of cage sound and vibration pattern sound, are as follows:
(1) the cage sound and control methods Cage sound is the strong vibration of the cage and the impact of the rolling body issued by the cyclical vibration and noise, in the pocket loose and friction is easy to occur. This noise occurs mainly in the ball bearings and rolling bearings, and stamping cage and solid cage will occur, the use of grease or oil lubrication will occur, but poor lubrication or lubricant dry, the radial clearance is large , The outer ring to bear the moment load, and the cage structure is not good and the accuracy is not high, the more prone to serious cage web or rivet head will suddenly break.
Control cage noise and vibration methods are; the use of lubricants with good lubrication; reduce bearing installation error; compression bearing radial clearance or appropriate to axial preload, and the selection of a reasonable structure with reasonable cages Bearing, or change the cage with a solid and not wear the rolling bearing.
(2) the vibration pattern of sound and its control method is directly related to the rolling surface of the bearing waviness-related noise, which is a pure tone noise, for a constant speed, its frequency does not change, and for the speed of change, Its frequency also will change.
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