INA bearing surface traces of oil directly determines the ability of anti-rust bearings, especially for international manufacturers of bearings; although INA bearing body has been anti-rust treatment, but still smooth as bearing the appearance of new, will not find any oil. For some of the counterfeit products bearing INA, in order to achieve the goal to rust, it will in the bearing surface with thick oil, which would lower the bearing body's own finish.
    in currently bearing market the bearing distributors primarily in the means of fraud are: iron, carbon steel made of bearing  and repair of waste disposal  good bearing products, such products are generally in the hardness and accuracy there is a big error; the poor quality low-cost INA bearing, place a small plant bearing products of the big brands are registered trademarks, brand image, these products are generally on the real ones in order to achieve the purpose to deceive consumers; Furthermore the well-known manufacturers of fake users , dealers, agents, and even spot fake factory retail outlet; there is the production stamp, bearing the general level INA typing into a D-class bearings.



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