Control measures such as heavy bearing pedestal dovetail guide rail sound The dovetail guide rail sound is the continuous rolling sound generated by the rotating body rotating on the surface of the dovetail guide rail during the operation of roller bearings. It is the unique basic sound generated by all roller bearings. The sound of some roller bearings is equivalent to the sound of dovetail rails and other sounds. The ball bearing dovetail guide rail has irregular sound, with a frequency of 10000 Hz. The main frequency does not change with the transmission ratio, but the total sound pressure level will increase with the acceleration of the transmission ratio. As the viscosity increases, the sound pressure level of the dovetail guide rail decreases, and the viscosity increases to about 20 mm2/s, from decreasing to increasing.

The greater the stiffness of the seat bearing, the lower the total sound pressure level of the dovetail guide rail sound. If the axial clearance is too small, the total sound pressure level and dominant frequency of the dovetail guide rail sound will greatly increase as the axial clearance decreases. The operating procedure for dovetail guide rail sound is to use low noise bearings, i.e., low wave roller bearings, with priority given to risk. The sound of the dovetail guide rail usually endangers the noise of all mechanical equipment. Reducing the sound of dovetail rails can reduce the noise of all mechanical equipment.

Special attention must be paid to the following processes:

1. Ensure the cleanliness of the safe operation area. Check the specification and appearance of the roller bearing area. The shaft should be produced according to standard tolerances to facilitate the installation of the tightening sleeve, and correctly guide the installation of the chamfer by 3 mmx for 15 degrees.

2. Check to ensure the surface roughness of the bearing plate chair surface. The standard tolerance of the plan (parallelism) shall comply with national standards. Ensure the cleanliness of the mounting surface. If the mounting surface is coated with paint, the paint must be removed. If shims are used, all surfaces must be covered with shims. The design of the mounting surface structure must be able to vibrate with actual loads and properly install wiring.

3. All components installed between two seated bearings on the shaft. If roller bearings are installed on the tightening sleeve, the relativity of the heavy bearing pedestals should be determined.

4. Ensure that the connecting surface of the seated bearing has been cleaned of paint and air pollution sources. Place the bearing base with seat on the surface of the bearing plate seat. Install the connecting anchor screw, but do not need to tighten it.