C. for only the radial load and the radial clearance is large but also easy to produce.
D. also can be in a certain range and different size bearing its speed range are also different.
E. may be a continuous sound may wheel bearing be intermittent sound.
F. the forced vibration often excited outer two order, three order bending vibration, thus make the noise. Through the use of pre load equation method can effectively reduce the noise, reduce the installed bearing radial clearance, choose good lubricants can also improve, some foreign enterprises adopt light rolling body, such as ceramic roller or hollow roller and other technical measures to prevent the occurrence of such noise.
The 3 tip.
It is a metal sliding friction high precision bearings produced quite sharp scream, though bearing temperature rise is not high, it will not have much impact on the service life of the bearing and grease life, does not affect the rotation, but not melodious sound disturbing, especially bear radial load of large cylindrical roller bearings often have this noise, the characteristics of:
A. bearing radial clearance large easy to produce.
B. usually occurs in grease lubrication, oil lubrication is rare.
C. decreases with the bearing size increases, Slewing drives and often appears in a certain speed range.
D. winter often.
E. its appearance is irregular, and unpredictable, and associated with the installation of operating conditions and performance, filling grease amount. This noise can be used to reduce the bearing radial clearance and the shallow outer ring raceway structure to prevent.
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