The Influence Of 304 Stainless Steel Bearing Structure On Vibration And Noise

First, the sound of raceway.

Raceway sound is due to the rolling body rolling in the raceway when the 304 stainless steel bearing rotates and stimulates a smooth and continuous noise, only when its sound pressure level or tone is very large to attract people's attention. It has the following characteristics:

1. Noise and vibration are random.

2. Vibration frequency is above 1kHz.

3. No matter how the speed changes, the main frequency of noise remains unchanged while the sound pressure level increases with the speed.

4. When the radial clearance increases, the sound pressure level increases.

5. 304 stainless steel bearing seat rigidity increases, the lower the total sound pressure level, even if the speed increases, the total sound pressure level is not increased.

6. The higher the viscosity of lubricant, the lower the sound pressure level, but for grease lubrication, its viscosity, soap fiber shape and size can affect the noise value.

Two, falling rolling sound.

In general, the noise mostly appears in large bearings under low speed and bearing radial load. And has the following characteristics:

1. Fat lubrication is easy to produce, oil lubrication is not easy to produce. It is easy to produce when using inferior grease.

2. Winter often occurs.

3. for only radial load and radial clearance is also easy to produce.

4. In a certain range, bearings of different sizes will also be produced and their speed ranges are different.

5. It may be continuous sound or intermittent sound.