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What are the skills to solve the noise of full roller bearings without outer ring?
What are the skills to solve the noise of full roller bearings without outer ring? Even silent cupless full complement bearings are unavoidable. Why? Usually, when we recycle imported full-roller bearings without outer ring, we will chat with the maintenance staff in the workshop when there is a gap to talk about the nature of the noise of full-roller bearings without outer ring. They said that the noise that occurs during the use of the outer ring full roller bearing is very common, which is an unavoidable problem in the use of the outer ring full roller bearing. He then shared with us a few tips for low droop, using his years of driving full-roller bearings without outer rings. The first: the raceway sound of the outer ring full roller bearing and the techniques for controlling the raceway sound. Raceway sound is the sound produced by the rollers rolling on the raceway during operation of a full-roller bearing without an outer ring. The characteristic is smooth and continuous. It is the basic sound of all rolling full-roller bearings without an outer ring. The common noise of full roller bearing without outer ring is a mixture of raceway sound and other sounds. The sound of the raceway will also be different. For example, the raceway sound of a full-roller bearing with no outer ring is an irregular raceway sound. The frequency is higher than 1000Hz. Then its main frequency differs from other full complement bearings without outer ring in that it does not change with speed. It will shift, but its total sound pressure level will increase with speed. For some full complement roller bearings without outer ring with particularly loud raceway sound, the sound pressure level of the raceway sound is inversely proportional to the viscosity range, that is, the higher the viscosity, the lower the raceway sound; for some raceways For a low-sound full-roller bearing without an outer ring, the sound pressure level of the raceway is proportional to the viscosity, that is to say, the greater the viscosity, the greater the sound pressure level. Changes in raceway sound are also related to the stiffness of a full complement housing without outer ring. The stiffness of a full-roller housing without an outer ring is inversely proportional to the sound pressure level of the raceway sound, that is, the greater the stiffness of a full-roller housing without an outer ring, the lower the total sound pressure level of the raceway sound. Also relevant is the radial clearance. The radial clearance is inversely proportional to the sound pressure level and dominant frequency of the raceway sound. The smaller the radial gap, the higher the sound pressure level and dominant frequency. After reading the above, the control technique of the raceway sound is actually a bit of a clue. We can choose a full complement bearing without outer ring with less waviness to effectively reduce droop, and be careful in terms of service conditions. The occurrence of raceway noise has a great impact on the overall machine noise, and reducing the raceway noise can effectively reduce the noise of all machines.
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