SKF, a large Swedish bearing manufacturer, has developed a universal universal joint bearing for trucks that travel millions of kilometres without the need for additional lubricants. The inside of the assembly is sealed with a lubricating oil and has a high pressure flushing method.
Originally designed with a standard design, the lubricant should be replenished at regular intervals or at a certain driving distance, and some products cannot withstand repeated high-pressure flushing, resulting in the lubricant being easily washed away. The company speculates that throughout the Japanese truck industry, high-pressure car washes will emit 1,350 tons of lubricants per year into the natural environment, polluting the environment.
The universal universal joint bearing developed this time has two kinds of seals according to the degree of contamination. By using a resin thrust washer (Thrust Washer), the impact load in the axial direction is alleviated, and the lubrication state of the folded portion is ensured. .
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