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/*728*90 created on 2018/5/16*/ var cpro_id = "u3440131"; Home>Bearing knowledge>The importance of dealing with the actual noise of imported bearings on the number of lives The importance of dealing with the actual noise of imported bearings on the number of lives
Often affecting the noise of the entire machine; reducing the sound of the raceway can reduce the noise of the whole machine. The impact sound of the roll body and its control method. The larger type of ball bearing or cylindrical roller bearing works at low speed under pure radial load; The centrifugal force of the rolling body is a bit apologetic to the τ 诜 汕 汕 岢寤鞅 岢寤鞅 岢寤鞅 岢寤鞅 芑蚬龅 芑蚬龅 芑蚬龅 芑蚬龅 芑蚬龅 芑蚬龅 芑蚬龅 3 3 3 但 但 但 但 但 但 但 但 但 但 但 但 但 但 但 但 但 但 但 但 但 但Yes: Appropriate reduction of radial clearance; use of imported bearings with a reasonable layout and a data-friendly cage. /*250*250 was created on 2017/12/25*/ var cpro_id = 'u3171089';
The rolling sound of imported bearings and its control method is the sharp metal conflict sound of cylindrical roller bearings in all occasions; most of them occur in the larger type of imported bearings with smooth grease; Smooth fat is more likely to attack; it does not occur when the oil is smooth.
In addition; it is easy to attack in winter; when it receives pure radial load; it is easy to attack when the radial clearance is large; and it is different from the size of the imported bearing; it is easy to attack in a certain range of speed; The seizures will occur intermittently. The special processing method for the outer ring raceway can avoid the appearance of the rolling sound; if necessary, the imported bearing can be used; or the radial clearance of the imported bearing can be appropriately cut; Grease and progress with the rigidity of imported bearings.
There are two methods for calculating the fatigue life of imported bearings: the accounting method and the experimental Zhan branch. 1) Calculate the fatigue life of the imported bearings calculated according to the formula and accounting rules as the calculated fatigue life; the calculated total rotation value rule is the inner circle or The total rotation value when the shaft ring is changed (the outer ring or the seat is fixed at the moment).
According to the standard normative experimental method, the test procedure for rolling bearing fatigue life; the experimental machine that can satisfy the various requirements of the method in terms of function; the sampling fatigue test of a batch of imported bearings; obtained from the experimental data processing The actual experimental life of the test; that is, the fatigue test life of the imported bearings represented by the imported bearings.
The test of the fatigue life of the rolling bearing is the wear factor of the sleek rolling bearing with sufficient smoothness and maximum limit; the intensive fatigue life test method with enhanced load and speed to select the exhaustion of the imported bearing.
The nuclear algorithm and the fatigue life test of the fatigue life of imported bearings are mutually reinforcing; the results obtained by the two have satisfactory correspondence.
But in practice; for each specific application; it is necessary to extract the number of imported bearings for life test; to verify whether the selected imported bearings are suitable; this is very economic, time and labor. Therefore, the experimental method of importing the bearing life is only used in very necessary or important cases; in most cases; the standard life calculation method is adopted to estimate the service life of the imported bearing; Dependence.
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Source: China Bearing Network Time: 2013-10-09