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/*728*90 created on 2018/5/16*/ var cpro_id = "u3440131"; Home>Bearing knowledge>KOYO Rolling Bearings "The Correct Device Method Collection" KOYO Rolling Bearings "The Correct Device Method Collection"
When installing the KOYO bearing; check the straightness of the axial line of the shaft ring and the shaft. The method is to fix the dial gauge to the end surface of the casing; make the contact of the table top change the bearing on the KOYO bearing shaft raceway; Table pointer; if the pointer is yaw; clarify that the axial line and the middle line of the shaft are not straight. When the box hole is deep; it can also be checked with an extended dial gauge. /*250*250 was created on 2017/12/25*/ var cpro_id = 'u3171089';
1, peeling and folding:
Some of these two shortcomings are not well connected to the base metal; and there are often different degrees of decarburization or carbon depletion around them; the data simply collapses, embosses or wear; the KOYO bearing life and accuracy are very arrogant.
2, a variety of mechanical scars:
Such as abrasions; scratches, crushes, bumps, etc.; will result in poor bearing device; incurs eccentric load and stress gathering; formation of rotation accuracy and reduction in service life.
3. Riveting or welding quality of the cage:
The first investigation of whether the rivet head can be biased, tilted, slack, lack of meat or double eyelids; whether the welding orientation is correct; the solder joints are too large. The crabs are attached to the hard-hitting èš èš é¹‚ã„— 鹂ㄗ 鹂ㄗ 鹂ㄗ 龆逑窒 龆逑窒 龆逑窒 龆逑窒. The above items are some of the points that we look at in the scroll bearing; in addition to some of the above-mentioned views; others such as poor typing quality; such as ambiguous and damaged handwriting; should be considered as defective; severe can also not be tested.
4, various cracks:
Such as the original data crack; casting cracks, heat treatment cracks and grinding cracks; these cracks in the future bearing operation; will become the source of stress gathering and agile expansion; the formation of bearing crack; the impact on KOYO bearing life and operational safety Great. Bearings for important uses; the bearing factory has performed 100% magnetic or radiographic inspection of its components.
5, rust, black skin and pitting:
The latter two are shortcomings of simple storage of moisture and dirt; the simplest is to carry out rust. Corrosion is a source of pollution that causes poor installation, early wear and fatigue; severe corrosion can make bearings invalid.
When the bearing device is correct; its seat can actively get used to rolling of the rolling body; ensure that the rolling body is located in the upper and lower ring raceways. If the bearing loading and unloading personnel reverse it; not only the bearing operation is not normal; and the cooperation faces will be severely worn. Because the shaft ring and the seat ring and the difference are not very significant; the device should be taken care of; do not make mistakes. In addition, the bearing personnel must know that there should be 0 between the seat of the rolling bearing and the bearing housing hole. 5mm clearance; used to compensate for the inaccurate formation of parts and equipment; when the bearing ring is offset in the middle of the operation; this gap can ensure its active adjustment; prevent collisions; make it work normally; otherwise; Inflict severe damage to the bearing.
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Source: China Bearing Network Time: 2014-04-02