FM211

FM211

（1）軸承的潤滑脂的選擇要合適，應根據(jù)其類型尺寸和運行條件來選擇。潤滑脂填充量要合適，一般為軸承室1/2-2/3為宜，潤滑脂過多，將直接熔化流出，甩到繞組上，腐蝕繞組。

（2）軸承安裝不當或安裝帶輪不正確，外力使軸承內外圈裝歪，致使轉動不靈活，軸承發(fā)熱損壞。

（3）軸承滾柱滾珠，內外套圈滾珠支架嚴重磨損和發(fā)生金剝落，造成電機異響，以致電機掃鏜燒毀。

（4）電機軸向沒有竄量，軸承外蓋與軸承外套之間間大小。電機運轉時，轉子受熱膨脹時伸長，致使軸承發(fā)熱。

（5）電機端蓋沒上好，止口沒有靠緊，或軸承蓋上不均，使?jié)L珠偏出軌道旋轉而發(fā)熱。

（6）防護不好，軸承內進水或粉塵，使軸承得不到良好潤滑而損壞。

造成電機故障的原因很多，就其根本原因有電氣和機械兩方面的原因，一般機械方面的原因居多，而軸承損壞占電機故障原因的70%以上，所以防止軸承損壞可以使電機故障率大大降低，以下詳細分析軸承損壞的原因及防范措施。

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