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Bearing on its use during exhibit strong regularity and repeatability is very good. Normal quality bearings (linear bearings) used in the beginning, vibration and noise are relatively small, but somewhat messy spectrum and amplitude are small, probably because some flaws in the manufacturing process, such as surface burr due.
Exercise period of time, to maintain a certain level of vibration and noise, the spectrum is very simple, just thrown one or two multiplier. Rarely thrown more than three times the frequency spectrum, bearing condition very chaotic, chaos into the working period.
After running into use late succession, bearing vibration and noise begins to increase, sometimes appearing different sound, but the change in vibration increases more slowly this time, bearing kurtosis value starts Passed reaches a certain value. We thought, this time bearing the performance of initial failure.
For as long as possible in order to maintain good condition bearing the original function, to be maintained, inspection, in order to prevent accidents in the first place, to ensure the reliability, improve production and economy. Corresponding mechanical operation and maintenance best premise of the scale, on schedule. Including supervision of operating conditions, add to or replace the lubricant, scheduled demolition inspection. As a matter of operating the test, a rotation of the bearing sound, vibration, temperature, the state of the lubricant.
Bearing cleaning: Remove the lower bearing inspection, the appearance of the first record bearing confirm the remaining amount of lubricant, the lubricant used after sampling inspection, wash bearings. As a cleaning agent, general use gasoline, kerosene.
Removed to the bearing cleaning, cleaning of coarse and fine cleaning, were placed in a container, first put the metal mesh bottom, so that no direct contact with the container bearing the dirt. Coarse cleaning, if the bearing rotation with dirt, move will damage the bearing surfaces, should pay attention to. In the crude oil washing, use a brush to remove grease, adhesive material, generally clean, into sperm washing.
Sperm washing is to clean the oil bearing side of the rotating, while carefully cleaned. In addition, cleaning the oil should always be kept clean.
| Product Model | Inside Diameter | Outside Diameter | Thickness |
| R18ZZ NSK | 28.575 | 53.975 | 12.7 |
| R18 NSK | 28.575 | 53.975 | 9.525 |