Bearing face how directly determines the appearance of his authenticity. Sweden check the original astigmatism lamp should be , bearing appearance. Cracked bearing paired tapered bearing marks and other parts of careful observation . Here to share with everyone one we should check those sections.
Cage riveted or welded quality , position welding is correct , solder joint bearing too large or too small, the main observation rivet head is offset. Skewed. Relaxation . Lack of meat or " double eyelid ', whether welded needle roller bearings strong or welding caused by excessive stuck rolling phenomenon is China Bearing more than a few of our original focus on checking in check *** in addition, such as typing poor quality , defective should be considered , such as illegible . damaged , in addition to the examination of part of the Luoyang Bearing Factory , so the real in appearance but also can be seen , the above is just hoping to help those who are planning to buy *** friend.
Shiny, just like the hand rub can paired angular contact ball bearing fall colors the same. Now the production has a very small box All the letters are arranged densely style box body . There are also fake packaging good . So just from the packaging point of view, but also jeopardy . See the packaging is usually clear or fuzzy , odor and anti-rust oil bearing packaging , as well as processing technology is fine, stenciled lettering is clear, from the material point of view, generally do not see any difference , and some low-quality fake hair black material , but can not be generalized . But now the technology are high imitation goods , and cottage cell phones, even if you know which side to identify, but non-professionals have a few years of Daoxing not see .
Use oil-lubricated bearings *** in addition to the old oil spilled . If you can, should and then poured fresh oil and let the machine at low speed rotation of a few minutes. Residual oil to collect as much as possible contaminants , and then spilled addition to the oil . Note : Before using the best oil first by filtration.
The use of grease -lubricated bearings in the replacement *** grease used in addition to Joe should avoid physical contact with cotton *** bearing angle to any site. Because these residual fibers may be wedged in between the rolling elements and cause damage , especially small bearing applications should pay more attention this issue.
