The undersigned did deem that if the non-parallelism of the crank pin exceeds permissible limitation, crank pin and bearing were caused to be burnt.

下列署名的验船师认为曲柄肖不平行度超过允许值时会导致曲柄肖和轴承烧坏。

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The accident is always occurred, which is that work roll oil film bearing used in high-speed wire rolling mill has shorter longevity and is often burnt.

高速线材轧机工作辊油膜轴承频繁发生短寿烧损事故，严重困扰企业生产。

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Since the case is processed at a time, the precision of the coaxiality is high and the vibration is small, thus preventing the phenomenon of burnt bearing.

因为是一次性加工出来的，同轴度精度高，振动小，避免了轴承烧环的现象。

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