NTN bearing the correct maintenance and timely maintenance is to ensure that an important aspect of Highway machinery functioning. If bearing maintenance, better maintenance, can disappear thousands of and even longer, conversely, will bring down the bearing service life significantly, such as burnt tiles, axle or even accidents. Usually NTN bearing lubricant working temperature of no more than 50 ℃. in order to ensure sufficient lubricant, lubrication and reliable, or periodically check the oil level in a timely manner, so that oil will remain within the range. To maintain clean, according to requirements of quality of oil replacement in due time. External spherical bearing failure of case analysis, and excluded in a timely manner. Spherical bearing common fault and treatment methods are as follows.
NTN bearings and long maintained its performance into full play, it is necessary to do a regular maintenance (periodic inspection).
　　 Through appropriate checks on a regular basis, early detection of failures, to proactively prevent accidents, increase productivity and economic importance.
　　 NTN bearings to be removed when checking, using methods such as photography appearance record. In addition, to confirm that the remaining amount of lubricants and lubricants sample, and then clean the bearings.
　　 A, bearing the cleaning carried out in roughing and finishing wash washing, and can be placed on the metal frame at the bottom of the container.
　　 B, while coarse-washing, with the brush in the oil clean of grease or adhesive. If rotational spherical bearings in oil at this time, note that due to foreign body injuries, such as rolling surface.
　　 C, essential when washing, slowly turn the NTN bearings in oil, shall be carried out carefully.
　　 Usually used for neutral cleaning agent does not contain water diesel or kerosene, temperature is also used sometimes caustic as needed. No matter what kind of cleaning agent, are often filtered clean.
　　 After cleaning, coating rust preventive oil on the outer spherical bearings immediately or rust-proof grease.



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