Method introduced to reduce bearing noise

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 There are many ways to reduce bearing noise Xiaobian a few, of course, if you have objections between us can be explored.
(1) the use of chemical additives

Addition of certain chemical additiv es in the bearing lubricant can reduce bearing noise, such as Tianjin, a factory producing a low-noise grease with noise reduction additives can reduce bearing noise from the original on the basis of 3.9 ~ 9.2dB suitable for use in micro or small bearing.roller thrust bearings

(2) the use of vibration absorbers or vibration isolation devices

Vibration absorption or vibration isolation devices to reduce bearing noise or isolation bearing noise, and can get good results, but so often pay a high price in the economy, sometimes institutions become larger, the thermal conditions deteriorate or rust easily, should use them fully consideration, after the index still can not achieve the low noise only when other measures taken after this Law.buy bearing

The simplest example is a high speed, replace the thrust bearing to withstand thrust ball bearings, and its outer on the sets of anti-rust lubricant, smoke filled the plastic coat, with the casing of the thrust bearings or thrust bearings allow case, the bore or cylindrical set with the same plastic cover, but the control is not available when the rotation and the adjacent parts, friction or interference. This approach has a certain role of silencer.

Another example is an intermediate sleeve between the bearing and the housing bore, can attenuate the rotation system to spread to the bearing housing vibration force, but it requires the deployment of well, else they might have the opposite effect.engine bearings

Yet another example is the use of a sound-absorbing acoustical enclosures will be noise bearing system is fully closed or closed as much as possible. The whole within the internal noise reduction enclosures for glass fiber or polyurethane foam, t he inner surface of 0.6-lmm thickness of the plate surface of the cloth are φ1.2-1.5mm small through-hole, the holes of the total area of  about 25% to 30% of the surface, the outer surface of the steel plate of 2mm thickness.

Here glass fiber or foam used to eliminate high frequency noise, with the hole inner surface to eliminate low-frequency noise, the outer surface of the thick steel plate is used to isolate the noise of the rumor.

(3) to change the speed of the host corresponding parts

The noise of the rolling bearing for the load is not very sensitive, but the speed is very sensitive, under the conditions allow, reduce speed and increase torque to achieve the same purpose, but it reduces the noise.

[Example] To reduce the noise of the pump system, the original used in the motor speed is 1430r/min under flow is 10L/min pump instead of speed 710r/min motor and with a greater specification of the pump to get the same fl ow The pump itself, the noise of the pump bearings and oil pump motor bearings are significantly lower, but the whole set of institutions share space expanded, the cost has also increased.