自由式磨料磨损现象在农业机械、工程机械、煤炭机械、建筑机械等工程领域中广泛存在，是导致这些机械与自由式磨料接触的工作部件的主要失效形式之一。
The phenomena of free abrasive wear widely occur in the working components of agricultural machines, earthmoving machines, coal-mining machines, construction machines and others.
外球面轴承优先适用于要求设备及零部件简单的场合，例如用于农业机械、运输系统或建筑机械上。
The spherical bearing applies to request priority equipments and parts of the simple situations, such as used for agricultural machinery, transportation system or construction machinery.
外球面轴承优先适用于要求设备及零部件简单的场合，例如用于农业机械、运输系统或建筑机械上。
The spherical bearing applies to request priority equipments and parts of the simple situations, such as used for agricultural machinery, transportation system or construction machinery.
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