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The choice of rolling bearing clearance

by：Waxing 2020-11-15

The choice of rolling bearing clearance - 2020 06 - 12 clearance is an important quality index of rolling bearing, the size of bearing load distribution, vibration, noise and life have a considerable impact. Should consider when the choice of bearing inner ring and the shaft and bearing outer ring and the axle box ( Bearing saddle) Of temperature, load and work caused by the change of the original clearance. Clearance will reduce the number of roller bearing force, greatly reduce the actual bearing life; Clearance is too small easy to under the condition of temperature influence was jammed. For roller bearing, a small amount of work clearance shall be maintained. Generally speaking, the determination of minimum bearing radial clearance should consider the following main factors: mixer with the influence of the amount of interference. Because the bearing inner ring and shaft neck with the inner ring outward expansion, caused by the radial clearance decreased; Cooperate with outer ring and bearing saddle without the entire week, don't consider the impact on the clearance. The influence of the temperature of work pieces. Due to the influence of temperature difference on inner and outer, radial clearance. The influence of pieces inside and outside the ring raceway geometry. The diameter of the inner and outer ring raceway can also cause the radial clearance of change quantity decreased. ( Source: the resources of railway vehicle platform)

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