Causes of premature failure of split cylindrical roller bearings

There are many reasons for the failure of the split cylindrical roller bearing, and all the influencing factors in the design and manufacturing process are related to the failure of the bearing, which is difficult to judge. In general, it can be considered and analyzed from the use factors and internal factors. The use factor mainly refers to whether the installation, adjustment, use and maintenance, maintenance and repair meet the technical requirements. The installation condition is one of the primary factors in the use factors. The improper installation of the bearing often leads to the change of the stress state between the parts of the whole set of bearings, and the roller needle bearing operates under abnormal conditions and fails early. According to the technical requirements of bearing installation, use, maintenance and repair, monitor and inspect the load, speed, working temperature, vibration, noise and lubrication conditions borne by the bearing in operation, find out the causes immediately in case of any abnormality, and make adjustments to make it return to normal. In addition, it is also important to analyze and inspect the quality of lubricating grease and surrounding medium and atmosphere.

1. How to deal with the influence of high temperature of split cylindrical roller bearing

(1) The alarm bell will ring

(2). The hydraulic machinery fault light plate on the side panel is on, the instrument temperature indicating the bearing temperature rises, and the signal relay acts.

(3) . The black needle of the thermometer dial (expansion thermometer) overlaps or exceeds the yellow needle.

(4) . Send the fault signal of roller needle bearing temperature rise.

2. Causes of bearing high temperature:

(1) The cooling water of the bearing may be interrupted, causing high temperature.

(2). It may be that the oil quality of roller needle bearing is deteriorated, the oil itself is not clean or the oil is deteriorated during operation. If the water content in the oil increases, the acidity of the oil will increase, the lubricating effect of the oil will be reduced, the bearing bush will be corroded, and then the bearing temperature will rise.