Imported bearing authenticity of sensory discrimination method

When purchasing imported bearings, can use the following method to roughly to identify its authenticity, See image below) 。 1. The packaging quality and pattern and text under normal circumstances, the well-known brand product has its own professional design external packaging and design professional design, text and arrange production condition good units to make to order, therefore, packaging is very clear, from the line to the color piece unequivocally ( Some imported brands of accessories packaging to protect their intellectual property unique design and special) 。 2. See if seal word clearly on the bearing body printed with brand, label, etc. Font is very small, but the most famous brands use seal technology, and before without overheating treatment of words, so the font although small, but deep concave, very clear. And counterfeit products font instead of the fuzzy, and because the Yin yu technology coarse, font float to the surface, some even can be used to erase easily. For SKF bearing, bearing type have the suffix letters A, B, C, D, E, etc. , these letters represent different production date ( See the website of other relevant data) 。 Pay attention to the SKF fonts logo, S to narrow the wide ( Pictured above in the package) ” K and F have pits on a vertical to the left of the picture. 3. See if there is a muddy surface oil stains, rust and scratch it should pay special attention to when buying imported bearings. Due to the current domestic antirust technology is not very good, so the antirust processing was carried out on the bearing body and is easy to leave the thick oil stains, his hands sticky thick, and imported from abroad can hardly see the trace of anti-rust oil on the bearing. Smell the imported bearing press close to, can have a taste, must be with anti-rust oil, could not see and just yourself. Informal products, or renovation of imported products, likely corrosion and scratches. 4. Chamfering whether uniform bearing on the surface of the transverse and vertical junction was processed into arc shape, known as the 'Angle'. Counterfeit bearings because of the limitation of production technology in the area of the fringes is handled. 5. Rotation and heard whether there is a ring bearing body with his left hand, right hand toggle coat to make it spin, xin if it has a ring. Because most of the counterfeit products production conditions, and even entirely in-house operations, in the process of production inevitably mixed into impurities such as sand, hidden in the bearing body, so makes a noise when rotating ring. This is and strict production standards, and machine operating one of the biggest differences between real products.