1, packaging of cylindrical roller bearings are clear:
Under normal circumstances, is the special design of the bearing factory brand has its own packaging design, conditions of production and production plant the clearance, so in terms of packaging line colors are very clear, clear, some branded accessories, as well as specialized packaging to protect their intellectual property and unique design.
2, bearing the stamp character is clear:
SKF bearings brand names printed on the body of the text, labels, and so on. Font is very small, but most of the stamp used is the production plant in, but there is no heat treatment prior to stamping it out, so fonts are small, concave deep, crystal clear. Counterfeit products not only fuzzy fonts, printing technology, rough, fonts, floating on the surface and in some cases can be easily erased with his hand.
3, bearing body has mixed effects:
Left hand holding the bearing body, right hand rotation toggle coat, mix ring. Due to counterfeit products is behind most of the production conditions in operation complete workshops in the production process will inevitably be hidden in the sand bearing the body of impurities, distracted, so will issue a rotate in a mixed ring. This is the strict implementation of the production standards and machine factory is the biggest difference between brands.
4, bearing surface are traces of oil and mud:
Bearings SKF′s procurement should pay special attention. Rust prevention technology of the present still not at home, so bearing body rust can easily leave a thick oil, processed traces in our hands, sticky viscous solid bearings hardly see any traces of the original anti-rust preventive oil, special bearings carefully, experts say, there′s a smell taste, anti-rust oil, just can′t see it.
5, chamfering of cylindrical roller bearing is uniform:
So-called SKF bearing a chamfer, which is on a level surface and vertical junction, bearing counterfeit production, due to technical constraints, these corners are not satisfied with the Web site.