NSK bearings break down, to turn the whole appearance inspection, cleaning, inspection of parts and repair.
Part of this process is the main process of NSK bearing repair process of rolling, is a main sign of repair industry from the locomotive manufacturing industry. Enter the NSK bearing repair can continue to use, how to meet the use requirements, will be part of this process is to solve the central problem. Now some provisions that do:
1, prior to cleaning, first check the grease holding basin, determine the effectiveness of the current gas, oil supply system is used to determine and. Physicochemical condition then check the oil, to see whether the thousand, harden, caking, condensate, thinning, discoloration and deterioration, to determine the oil aging and judge the rationality of the replacement period, adjust the oil change period and fill oil system. When necessary, to a, to oil pollution of iron, copper, dust and degree, and the inspection, determine the grease can equal to the wheel condition, improved performance, the replacement of oil varieties and improvement on the NSK bearing and oil seal structure suggestion.
2.nsk bearing cleaning is to restore the NSK bearing cleanliness and necessary step for NSK bearing parts inspection for measuring. Try to erase the old dirt grease before cleaning, operation process, pay attention not to the rotation of the NSK bearing freely, so as to avoid the disintegration of impurities in the process of rolling strain into the working face; move the NSK bearing to light-light, prevent bruising.
Cleaning work is generally in the diesel oil tank, diesel oil is heated to 80--90t, the pump pressure, flushing the NSK bearing. Please wash basin to the lower part of the metal net, to prevent the NSK bearing into the sink object pool in the temple. Diesel tank to the regular filter, add new oil, cleaning deposition, cleanliness to maintain the diesel to provisions.
The cleaning liquid prohibited the use of mixing corrosive medium. The traditional flushing or high temperature ( drop point to the mixture of steam and water washing temperature, slightly more than fat ) cleaning process, as long as can satisfy the cleaning quality requirements, also do not have to deliberately innovation.
The quality of cleaning NSK Bearings, NSK Bearings is to play the cleanliness of the balance is the. Process of railway vehicle department after repeated research, experiment, determine the standard reactor is: NSK bearing in thousands of net gasoline cleaning, drying, filtering pool paper, weighing, the residual ash content of not more than 20mg, the railway department in order to grasp, technology standard is recommended:
With five times the magnifying glass observation, NSK bearing working surface no observable pollution. This qualitative cleanliness standards to facilitate maintenance workers to master, easy. The control of cleanliness standards generally and specified residual ash weighing method is.