Bearing noise is big, the culprit turns out to be it!

Generally speaking, the bearing vibration, in the rolling bearing itself does not produce noise, often feel 'bearing noise' is in fact the bearing directly or indirectly, with the surrounding structure to produce vibration sound effects. This is why many times the noise can be seen as involving the whole bearing vibration problem of application. ( 1) Due to loading quantity change of vibration roller: when a load on a bearing radial load, the number of rolling element bearing load will be a slight change in the running, this caused the load in the direction of migration. The resulting vibration is inevitable, but can be by axial preload to ease, loading in all rolling body ( Do not apply to the cylindrical roller bearing) 。 ( 2) Partial damage: due to the operation or installation errors, a small number of bearing raceway and rolling element may be damaged. In the running, rolled the damaged bearing parts will produce a particular vibration frequency. Vibration frequency analysis can identify the damaged bearing parts. This principle has been used in the condition monitoring equipment, used to detect damage of bearing condition. If you want to calculate the bearing frequency, please see the application 'bearing frequency'. ( 3) The precision of the related parts: in the bearing ring and the bearing seat or under the condition of close cooperation between the shaft, bearing ring with adjacent components are likely to match the shape and deformation. If there is a deformation, can produce vibration in the operation. ( 4) Pollutants: if run in environmental pollution, impurities may enter the bearing and roller compaction. Vibrations depends on the number of impurity particles crushed, size, and composition won't produce the frequency of the typical form, but you can hear a disturbing noise. Cause noise of rolling bearings is more complex, one is the bearing inner and outer surface wear. Due to the wear and tear, damage to the bearings and shell, bearing and shaft cooperate relationship, lead to axis deviation from the correct position, when axis at high speed movement produces sound. When the bearing fatigue, its surface metal flake, also can produce sound make bearing radial clearance increases. In addition, the bearing lubrication, forms the dry friction, and bearing broken etc all make abnormal noise. Bearing wear loose after kuang, maintains a looseness damage, also can produce sound. Seiko bearing, the total investment of more than 1700, selected mature production equipment, strict production process management, main mute MR bearing and deep groove ball bearing series, the production of bearings, smooth rotation, low noise, small gaps, and the advantages of long service life, stable quality, the monthly production capacity is 600 - 8 million sets, if you want to buy bearing, national sales hotline: