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高速精密角接觸球軸承的主要技術指標及保養事項

發布日期:2022-07-14 點擊率:79

        高速精密角接觸球軸承,主要用于載荷較輕的高速旋轉場合,要求軸承高精度、高轉速、低溫升低振動和一定的使用壽命。常作高速電主軸的支承件成對安裝使用,是內表面磨床高速電主軸的關鍵配套件
  主要技術指標:
  1.軸承精度指標: 超過GB/307.1-94 P4級精度
  2. 高速性能指標: dmN值 1.3~ 106 /min
  3. 使用壽命(平均): >1500 h
  高速精密角接觸球軸承使用壽命與安裝有很大關系,應注意以下事項:
  1. 軸承安裝應在無塵,潔凈的房間內進行,軸承要經過精心選配,軸承用隔圈要經過研磨,在保持內外圈隔圈等高的前提下,隔圈平行度應控制在1um以下;
  2. 軸承安裝前應清洗干凈,清洗時內圈斜坡朝上,手感應靈活,無停滯感,晾干后,放入規定量油脂,如屬油霧潤滑應放入少量的油霧油;
  3. 軸承安裝應采用專門工具,受力均勻,嚴禁敲打;
  4. 軸承存放應清潔通風,無腐蝕氣體,相對濕度不超 過65%,長期保管應定期防銹。


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