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Cylindrical roller bearings and conventional damage prevention inspection
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| Time：2016.09.10 News Sources：Shandong Xinkaite bearing Co.,Ltd. Views：
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1. Rotation of the outer ring and carefully rinse cage, rolling elements and raceways at the junction, require any hidden parts of the original traces of oil residue thoroughly cleansed. Cylindrical roller bearings should be appended after cleaning clean cleaning Youlin dry, lined with clean neutral liner on the bench to dry, or dry slowly in the far infrared oven. Since even dry cleaning Youlin dry or drying, the whole process can not be rotated bearing rings, adhere to frame or any rolling elements. SUNTHAI bearing immediately before the delivery of routine checks before removing its seal packaging, washed and immersed gasoline containing 3% acid-free oil or kerosene.
2. It should be required to be delivered immediately check the oil drops have been dry or dry bearings. In this case the outer surface of the bearing oil film without protection, the entire inspection process are not allowed direct contact with hand skin, the operator should wear clean gloves, or hand painted with rust inhibitor, but must avoid the hands of rust mixed into rolling bearings appearance, or make measurements deviations occur.
3. It should be immediately delivered or rust inventory processing, the entire inspection process should also pay close attention to the completion, after bearing checked. It lasted too long so as not to cause corrosion. Note that the use of pure gasoline without oil cleaning can also cause corrosion.
4. Have been dry or drying of cylindrical roller bearings, should be required to be delivered immediately check the oil drops, then timken outer surface of the bearing oil film without protection, the entire inspection process are not allowed direct contact with hand skin, the operator should wear on clean gloves or hand painted with rust inhibitor, but we must avoid the hands of rust mixed into the bearing rolling surface, otherwise it would be the measurement result deviations occur.
5. After checking the bearing, should be delivered immediately or rust inventory processing, the entire inspection process should also pay close attention to the completion, in order to avoid corrosion caused lasted too long. Note that the use of pure gasoline without oil cleaning can also cause corrosion.
These must also gauge block, standard parts and inspection and measuring instruments used in the co-located bearing 6. Before carrying out checks in checking the premises of a metal plate, which can quickly make these objects uniform temperature and room temperature of.
According cylindrical roller bearing damage causes, a careful analysis in order to prevent it well.
1, the bearings should be properly safeguarded, bearing Do not rain and humidity to avoid corrosion, is strictly prohibited bump and other injuries.
2, should be based on load size, direction and nature of rational choice bearing type, configuration, and accuracy.
3. The bearing on equipment usage, with reasonable selection of nature and tolerance class bearing and housing, bearing and shaft.
4, to avoid the current through the bearing on to prevent galvanic corrosion.
5, precision bearings for critical use should be in a better environment, to prevent the strong vibration near the punch of bearing vibration eclipse.
6, there is a residual magnetic bearings should be demagnetized to prevent adsorption of metal debris.
7, to avoid bearing inner and outer rings with sliding contact with other parts caused by heat caused by friction.
8, do the preparatory work before assembly.
(1) according to timken bearing type, structure, size and nature meet, select the appropriate assembly methods and tools.
Processing quality (2) Check the bearing assembly mounting surface, including dimensional tolerances, geometric tolerances and surface roughness. If rust, scratches and other surface defects should carefully removed.
(3) does not allow the gauge to measure the accuracy of bearing journal or bearing hole. More can not be on the bearing chamfer grinding grooves, etc., so not only easy to make the bearing deformed, but also easy access to the chip bearing manipulation bearing damage.
(4) new cylindrical roller bearings before assembly must be carefully cleaned, after cleaning the bearing can not be placed directly on the platform
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