Six items to prevent excavator wheel bearing noises - bearing knowledge

China bearing network first, first of all, tell everyone what is wheel bearings, wheel bearings can also be called slewing ring bearings, also known as rotary bearing most people. As the wheel bearings on the excavator, it is often referred to as rotary bearing a truth. Slewing bearing is a kind of comprehensive load to bear a large bearings, can withstand the larger axial and radial load and tilting moment. Slewing ring bearings generally installed with a hole in the gears or gear, grease holes and sealing device, which enable mainframe design compact structure, and guide is simple, easy to maintain. The question is, excavator wheel bearing ( Rotary bearing) Sound is bigger, in use process also has the sound of noise, this what reason is caused? China bearing network according to the understanding of the wheel bearing, tell everybody to excavator bearings ( Rotary bearing) The cause of the noise, and the corresponding solutions. At first we want to know, in the factory soon rotary bearing idling, sends out the uniform sound of steel ball rolling, this belongs to the normal noise; Tiny sound just appeared shortly after installation, if it doesn't matter, in turn the running-in after a period of time tend to disappear. We said today's voice is bigger and more particularly, to hear the noise of the special requires attention. Six items to prevent excavator wheel bearing noises: a, mounting surface uneven, installation bolt looseness in the event of a sound, the need is for install the operating problems, when the installation surface roughness can not meet the requirements, can lead to negative clearance groove formed, resulting in a sound; When the little gear mesh, also may produce sound, which would have caused the broken teeth of fault; In addition, when the installation is loose, resulting in rotary bearing elastic deformation, deformation produces negative gap location, need to check immediately the bolt as required. 2, a foreign body slewing bearing slewing bearing internal has the foreign body, such as sand, iron filings, non periodic vibration will happen, at the same time also with fault rotation is not flexible. When encounter this kind of situation, need to bearing, axis, before installation hole and all parts match the strict clean, cleared of lubricant inside the foreign body; Remember to avoid the use of material is not pure or foreign bodies are embedded plastic cage, this can be done to remove the corresponding sound. Three, the problem caused by the sound excavator slewing bearing grease lubricated by grease, sound is likely because lubrication problem. Common causes of roll passage for lack of grease, grease filling uneven, the poor quality of aging, lubricants selection error, etc. To solve the problem, need to use a suitable lubricant, filling in time, change in time will be able to solve. Four, sealing strip breakage caused by sound check seals wear, because the rotary bearing structure of the sealing strip plays an key role in sealing, sealing strip and rotary bearing not fully fit when, easy cause leakage of grease. In addition sealing strip material's resistance to aging and yellow oily, is another issue to consider. Five, crack, indentation, or corrosion caused by the sound when the rotary bearing rolling surface such as crack, indentation, or rust, also heard like rivet rivet periodic vibration, scars on the channel occurred in a row, scars on the ball, and the noise with the installation and lubrication condition and have certain changes. When the method is to install the liberation not tap on a bearing or using high viscosity of the grease. Six, serious wear and tear of raceway and rolling element excavator appeared in the process of turning sound, is likely to be severe wear of rotary bearing raceway and rolling element, this time is need of slewing bearing for repair. As we all know, excavator working environment is relatively poor, and excavator wheel bearing ( Rotary bearing) Page generally work under large load state, slewing ring louder noise is a common problem, wheel bearings appear after the noise also don't try so hard, the us as long as find the right reason, targeted to solve, more than the bearing network introduces six points for attention and a common phenomenon appeared in view of the wheel bearing noise, hope to be of help.