轴承内圈油沟加工质量不高引起的热轴实例分析

Actual Event Analysis on Hot Box due to Inferior Machining Quality of Oil Grooves on Bearing Inner Rings

在以往的各种热轴故障中，因轴承内圈油沟加工质量不高引起金属剥落造成热轴的，尚不多见。随后又发现几例同样故障，应引起轴承生产厂家和各使用部门重视。

Among various hot box troubles occured formerly,hot box resulted by metal peeling off due to inferior machining quality on bearing inner ring oil grooes rarely happened.Now,the trouble appeared several times which should call attention to bearing production factories and various users,for ensuring running safety of passenger cars.