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The cause of the abnormal phenomenon of NTN rolling bearing

Source: China Bearing Network Time: 2013-07-29
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NTN bearing related information: NTN rolling bearing in the application process because of its own quality and external conditions; its bearing capacity, rotation accuracy and wear resistance will change. When the performance index of the bearing is lower than the application demand and cannot work normally; the bearing will suffer from defects or even failure; after the accident occurs, the machine and equipment will stop; The need to detect the cause of the attack in a short period of time; and adopt the corresponding approach.
The typical causes of seven common manifestations: grease, lubricating oil expired or wrong selection, grease is too full or oil level is too high, bearing clearance. Recovery Xing Wei hit the disease (18) Xing Xing (18) С琶娌黄健NTN bearing box hole inner diameter too. Calling the 哟ビ 夤 夤 蠡虻 蠡虻 簦桓嵘 簦桓嵘 辛 辛 辛 辛 霰 霰 霰 霰 霰 ㄖ岢 捎谥崤蛘 捎谥崤蛘 捎谥崤蛘 捎谥崤蛘 捎谥崤蛘 捎谥崤蛘 捎谥崤蛘 捎谥崤蛘 捎谥崤蛘 捎谥崤蛘 捎谥崤蛘 捎谥崤蛘 舳ㄌ淄 舳ㄌ淄炙簦岢 炙簦岢 炙簦岢 蟆 蟆 (6) 芰Σ 猓 猓 猓 猓 龌蚨喔鲋岢 岫 岫 岫 岫 岫 茫 茫 茫 茫 煽 煽 煽 贾 贾 贾 贾 贾 贾 贾 贾 贾 贾 贾 贾 贾 贾 贾 贾 贾 贾 贾5 Jia 岢 岢 谌 蛘 蛘 蛘 蛘 兀 兀 兀 跎倭 岢 岢 岢 岢 岢 岢 叮捎谙 叮捎谙 叮捎谙 叮捎谙 喜 喜 喜 喜 喜 喜 喜 恚 NT NT NT NT NT NT NT NT NT NT NT NT NT Lack of internal grease, debris, sand, carbon powder or other contaminants enter the bearing housing, water, acid, paint or other contaminants enter the bearing housing, debris and other debris in the bearing housing of the device are not cleaned up. The shaft diameter is too small, and the tightening sleeve cannot be locked, because the slipping effect (because of the rapid start) causes scratches on the roll body, because the shoulder shoulder size is unreasonable. The shaft is bent, the shoulder is rubbed to the bearing seal cover, the area of ​​the shoulder in the bearing box is too small, the bearing outer ring is distorted, the bearing seal cover is distorted, the shaft and the bearing inner sleeve are distorted, and the shaft and the bearing sleeve are distorted, incorrect. The device method; directly hitting the bearing with a hammer, the change piece and the stop part of the machine touch, the touch oil seal wears severely; the lubricating oil leaks, the KOYO bearing clearance excessively causes the shaft to oscillate
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