How to identify overhaul bearing? Bearing to teach you

Identify overhaul bearing several methods: 1, rolling bearing general because small bearings manufacturer technical and equipment is restricted, so bearing precision is low, the bearing surface is not smooth, fillet size doesn't fit, some also have dark skin and dark spots. 2, some shoddy bearing raw materials for general use stainless steel plate, carbon steel, malleable cast iron has galvanized pipe, etc. , and the material appearance color most efflorescence, special bearing steel slant green color. Watch color, but also can not completely judgment and strength to do. Stainless steel sheet generally low intensity. 3, a few small manufacturers quenching technology simple, bearing is not symmetrical, heated slightly deformation could be happening. 4, rotating bearing, the bearing rotating is symmetrical, the noise is continuous, no noise. 5, the cage on manufacturer bearing cage and neat without flash, riveting pier bearing cage bolt head size is consistent, and unreliable factory production and processing technology and equipment simple, therefore cage is not smooth, some riveting structure maintains a uniform and uneven or partial, bolt or rivet partial pier head sizes. 6, see the packaging, on the factory packaging, the packaging on the font clear, some fake bearing packing, or simply unreliable. 7, the bearing inner hole font, font is very original bearing steel word or laser clear symmetrical, laser font has certain deep, counterfeit bearings have broken mark font, laser font with sand cloth gently wipe is gone, and on laser font will leave after a brush with sand cloth fuzzy font imprint. 8, the certificate of approval, on bearing manufacturer are certificate and certificate of approval size, most of the certificate of approval for greaseproof paper printing paper. Font clear, some manufacturer certificate with information content, fake certificates, some vague and font for general printing paper, printing paper certificate sizes. Proposal to set aside on manufacturer certificate to carry out the comparison reference. 9, some imported bearings in corrosion inhibitor level is different with China, imports of bearing is not no anti-rust oil just couldn't see imprint bearing surface clear, and some of the imported bearing with fake rust-proof oil in your hands feel sticky, will smell a rust inhibitor. 10, understand and master some useful manufacturer standards, such as: bearing model specifications, trademark logo, s number. And some false bearing font is playing, even if the laser played some font is only a blur. 11, if it is best to have standard bearing factory or well-known brand agents. The above is the content of the author to share today, want to learn more bearing small knowledge, pay attention to the bearing's official website.