Scraping of sliding bearings

Source: China Bearing Network Time: 2014-02-15

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Before scraping; should carefully check whether the journal can be lubricated; whether there are any defects such as rust and bump; if it should be solved first, then; check the contact condition of the journal and shaft; view the method; apply on the shaft diameter a thin layer of developing agent (such as red powder, red Qiang oil, etc.); then the journal is placed in the bearing; the hand is turned into two or three turns in the forward and reverse directions; the shaft is taken out; the dispersion of the colored points on the bearing is observed. The situation; if the color point spreads abnormally, the bottom can't turn;
When scraping; should be based on the situation; adopt the criteria of light weight first, light weight, light weight, and large size. Start a few times; the hand can be heavier; scrape some metal; to reach a better touch faster When the touch area reaches 50%; it should be lightly scraped. Every time it is scraped; wipe the tile surface; then apply the developer to the journal to check it; then scrape according to the touch condition; Stop. Scratch and view the ability to use the visualization agent; but the fine bearing that has high demand for the touch point; the developing agent cannot be used in the final period of scraping. Because; after the application of the developing agent; the coloring point on the bearing is too large; Touch condition. At this moment; the journal can be wiped clean; directly placed in the bearing to check; then the shaft is taken out; the bright spot on the bearing can be seen; that is, the touch point. Then the spot is scraped; until the skill needs are stopped .
Scrape; not only make the touch point meet the skill needs; but also make the side gap and touch angle reach the skill demand. Usually touch the touch point first; also look at the touch angle together; finally scrape the side gap. However; touch some Some touches should not have significant boundaries; when you wipe the bearing's appearance with your fingers; you should not notice any traces.
The oil tanker depends on experience; but mainly to grasp the criteria:
1. Lubricating oil should be input into the bearing from the minimum pressure of the oil film.
2. The oil tank is opened in the non-load bearing area; otherwise, the bearing capacity of the oil film will be lowered.
3, the axial direction of the oil tank can not be registered; to avoid oil loss from the end of the oil tank,
4. The bearing oil groove of the horizontal device is opened for half a week; do not extend to the bearing area; the oil groove of the whole week should be opened close to the end of the bearing.
Others; the oil hole is opened at the top of the bearing bush; the oil groove can be surrounded by the oil inlet hole; the oil groove with the width and the hole diameter is flat; the shape can adopt the shape of "ä¸€", "Ã—", and "çŽ‹".

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