Are there traces of oil muddy surface which requires that we should pay special attention to when buying imported slewing ring bearings. Very easy to leave a thick oil stains Because there is a certain gap between domestic and foreign advanced technology of rust country of manufacture, so the bearing body cross roller bearings rust treatment, feeling sticky sticky thick hand contact when, while foreign original on imported bearings hardly see any signs of rust oil. According to insiders, particularly observant person can smell the bearings into a special flavor, which is anti-rust oil taste.
The so-called bearing chamfer, which is the junction of horizontal surface and vertical surface, counterfeit products bearing production technology due to restrictions in parts of the processing of these corners was unsatisfactory, which we can easily identify.
Bearing Package
Packaging fair share in the manufacturing of packaging and packaging bearing completed and after passing inspection, namely cleaning and anti-rust treatment, then put the package in order to achieve water, moisture, dust, shock, maintaining quality and precision bearings and the purpose of ease of use and sale.
Bearing inner packing by rust period is divided into triple row roller slewing bearing three categories:
① Short rust on packaging: rust period of 3 to 6 months, for large volume shipments to the same subscriber, then put the bearing used in the short term. By mutual agreement, to facilitate the use of the principle, the use of simple packaging.
② general rust on the packaging: rust period of one year for general purpose bearing.
③ long rust-proof packaging: rust of two years for special and precision bearings.
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