The dovetail guide rail sound and control measure raceway sound of the bearing are a kind of continuous sliding sound sent out by the overturning body of non-standard bearing on the surface of dovetail guide rail when the unilateral bearing operates, which is the unique basic sound generated by all overturned bearings. The general sound of the inlet bearing is the sound of dovetail guide rail and other sounds.

The noise of ball bearing dovetail guide rail is irregular, its frequency is above 1000Hz, its main frequency does not change with the speed ratio, but its total noise coefficient increases with the increase of speed ratio.

For the bearing with high raceway noise, the noise coefficient of raceway noise decreases with the increase of viscosity, but when the viscosity of the bearing with low raceway noise increases to more than 20mm ^ 2/s, the noise coefficient changes from reduced to increased to a certain extent. The greater the bearing rigidity with seat, the smaller the total noise coefficient.

When the axial backlash is too small, with the decrease of axial backlash, the total noise coefficient and main frequency of the drum greatly increase. The method of controlling roller sound is to use low noise inlet bearings, i.e. small corrugated bearings, and carefully select the application standard. The noise of roller is often harmful to the noise of all machines and equipment. Reducing the noise of dovetail guide rail can reduce the noise of all machines and equipment.

• The impact sound of the turnover body and its control measures When the large-sized ball bearing or cylindrical roller bearing operates at low speed under the pure axial load, due to the small centripetal force of the turnover body, the turnover in the non-load area will impact the ball bearing or dovetail guide rail to transmit noise. However, as the velocity ratio increases, this noise disappears. The control measure for the impact sound of the turnover body is to properly reduce the axial side clearance, apply the effective structure and the imported bearing with smooth ball bearing as the raw material.