Listening to the sound distinguishes the authenticity of the bearing product

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Listening to the sound distinguishes the authenticity of the bearing product

Source: China Bearing Network Time: 2017-10-27
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The power machine shaft is not concentric with the pump shaft; the impeller is unbalanced. The belt is pulled too tightly; the bearing equipment is tilted; the smoothness is poor; the pump shaft is worn or twisted early. The pump shaft can also be placed on the V-shaped iron; Put the dial indicator on the rod; point the rod to the shaft; then slowly pull the pump shaft; if the shaft has a tortuous curve; every revolution; the dial gauge has a maximum reading and a minimum reading; The difference in readings indicates the tortuous level of the shaft. There are many ways to align the shaft; but for pumps, the easiest way to do this is to hit the straight-axis method. Straight-axis; place the shaft on a hardwood (or pad) 2. The copper side of the square iron is concave down; hit with a hammer and a crowbar.
The tortuous rigidity in the radial and axial planes is low; the stamping adhering frame of the irregular deep groove ball bearing is thinner. The overall stability is poor; when the bearing rotates at high speed, it will spontaneously oscillate due to tortuous deformation; "Beep" When the bearing is under the radial load effect and the grease function is poor; the noise will be heard at the beginning of the work; this is mainly because the roll body is out of the load zone; the roll is suddenly accelerated and adhered to The noise announced by the collision; except for the operation time is too long, disassembly and transportation, etc., the shaft is bent; the main reason is: the quality of the shaft itself is difficult; if the strength or rigidity is not good; the heat treatment does not reach the demand.
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