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The EDA bearing alloy corrosion is generally the area as the lubricating oil impure, chemical impurities in lubricating oil station (acidic oxides) bearing alloy oxidation produce acidic substances, cause bearing alloy parts fall off, forming a small hole or pit without rules. The main causes of EDA bearing alloy corrosion is the improper selection of lubricating oil, EDA bearing material corrosion resistance is poor, or the engine harshness, temperature too high.
Anti friction bearing EDA basically contains two hardened steel ring all bearings, more hardened ball or roller, and the separation of frame a separation roller or rollers or holder. These types in use are divided into many types. Some types, such as needle shaped bearings, may not have the inner loop, roller movement directly in the hardened shaft.
In practice it is necessary to use more than the recommended amount of grease is some. When the required torque is low, only need to grease can be very few complete lubrication on EDA bearing. When the velocity is very low and the bearing exposure to dust or humidity, bearings may almost be filled. EDA bearings in high speed and high temperature conditions is usually higher than the general need for lubrication and more frequent.