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Bearing maintenance technology, existing problems and solutions
by:Waxing
2020-11-24
Bearing maintenance technology, existing problems and the solution: a, bearing maintenance technology: decide when to lubrication and when to stop filling the way is very simple: make a base line, making observation schedule and to monitor the oil.
1 set a base line beyond visual error, bearing base line reflected in normal operation.
Enough db strength under the condition of lubrication.
Develop basic line three ways: the bearing can be put together.
In the same test method or from the same Angle to observe each bearing.
Analysis of db strength and sound quality.
If there is no substantial difference (
Less than 8 decibels)
Can set it as the basis for each bearing strength of decibels.
1 comparison method: if there are more than the same type of bearings.
Listen to sounds, 2 add lubricating oil set the base line, when add lubricating oil.
When the intensity of the sound down then up.
At this time, don't add too much oil and set it on the basis of the line.
Record every day, 3 history: to observe the bearing strength of decibels.
Then compare with 30 days record results.
If the db intensity change very little or no change (
Less than 8 decibels)
You can set the line on the basis of, and used for the comparison of observation value later.
2 set observation schedule is necessary to test once a month for those who want to high pitch bearing lubrication, such as, environment, operating results and production related equipment of the key is to choose and set up the main factors of evaluation of mechanical system.
After the basic observation line set.
Should detect the frequency of more frequently, so that it can be observed by the possibility of change.
If a bearing is in a state will be destroyed, then the oil can only temporarily cover a mistake.
But db strength will soon rise to display an error exists in some cases, this kind of phenomenon will emerge in a few minutes, some needs a few days.
3 lubrication testing takes think the bearing lubrication.
When I realized that the bearing need lubrication, if a db beyond bearing base line 8 decibels.
You know when to stop oil will prevent excessive lubrication.
Can be finished in the following three steps: and then into the lubricating oil, 1 is based on the guidance of the bearing manufacturer calculation consumption.
Don't be too much.
This step is very subjective has nothing to do with ultrasonic, and this method has never been failure.
2 when injecting grease lubrication technician application ultrasonic instrument testing bearing.
Oil slowly until the db intensity to a base line.
The dosage of the lubricating oil should be the voice down and then rises to stop.
At this time, 3 if there is no base line as a guide.
The technician should stop continue to use the lubricating oil.
4 ultrasonic bearing inspection ultrasonic warning will be the first ring.
When early bearing damage due to excessive use, the ultrasonic inspection or monitoring is realized bearing damage early (
At the beginning)
The most reliable method.
When the temperature or low frequency vibration intensity strengthening.
A glut of lack of lubricating oil or lubricating oil, use this method of inspection of bearing is very useful for 5 find failure signals such as roller or ball bearings began to overuse, like metal on the tracks of the ball bearings.
Slight deformation occurs.
This kind of situation will occur irregular appearance, leading to the increase of ultrasonic.
From the early reading amplitude changes marked one of two conditions: early failure or lack of lubricating oil and bearing failure in advance.
If ultrasonic beyond basic line 8 decibels, will have a lasting impact, along with the noise, the noise indicate the lubricating failure (
Dry bearing appearance)
If the ultrasonic reading more than expected readings, at 12 decibels, there will be a collapse of the noise, the noise can assume that the failure of bearing has begun to enter the bearing WeChat members of the public platform tip bearing maintenance technology often problems: bearing will be scrapped in advance;
If the oil change too much, two complex questions about bearing maintenance technology is 1 when an oil change.
2 how much oil should be changed.
If the oil change too little.
Bearing would get into trouble or temporary harm power coil and roll line.
S s s jiaxing seiko co. , LTD. (
Professional motor bearing application solutions provider)
Focus on miniature high speed, low noise, long life motor bearing telephone: fax: an article on the sales @ : large bearing from bearing forging, heat treatment, processing and assembly process detection repair next article: is the last article
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