The noise of the ball bearing dovetail guide is irregular, with a frequency above 1000Hz. Its main frequency does not change with the speed ratio, but its total noise coefficient increases with the increase of the speed ratio. For bearings with high raceway noise, the noise coefficient of raceway noise decreases with increasing viscosity, but when the viscosity of bearings with low raceway noise increases to 20mm ^ 2/s or more, the noise coefficient changes from decreasing to increasing to a certain extent. The higher the stiffness of the bearing with seat, the lower the total noise coefficient.

When the axial clearance is too small, as the axial clearance decreases, the total noise coefficient and main frequency of the drum sound increase significantly. The method of controlling roller sound is to use low-noise imported bearings, namely small ripple bearings, and carefully select the application standards. The sound of rollers often harms the noise of all machinery and equipment, and reducing the sound of dovetail guides can reduce the noise of all machinery and equipment.

The impact sound of the flipping body and its control measures. When large-sized ball bearings or cylindrical roller bearings operate at low speeds under pure axial loads, due to the small centripetal force of the flipping body, the flipping body in the non load area will impact the ball bearings or dovetail guide rails, transmitting noise. But as the speed ratio increases, this noise will disappear. The control measures for the impact sound of the flipping body are to moderately reduce the axial clearance, apply effective structures, and use imported bearings with smooth ball bearings as raw materials.