Cross-type tapered roller bearings as a bearing, in the usual operations, cross-tapered roller bearings is slowly developed out of this, of course, cross-tapered roller bearings also need to repair, or maintenance, no matter what kind The bearings will meet this step. Therefore, we have crossed the tapered roller bearing Xiaobian to give you this kind of regular maintenance process in advance.
When periodic inspection and operation of bearing equipment and bearings removed during replacement of peripheral parts are inspected, it is necessary to judge whether the bearing parts can be used again and record the good or bad of the use situation. Also carefully investigate and record the bearings and appearance that have been removed. In order to clarify and investigate the remaining amount of lubricant, it is necessary to clean the bearings well after sampling. The
Next, check the raceway surface of the bearing, the condition of the rolling surface and the mating surface, and the state of wear of the cage, and whether or not there is any damage or abnormality, in particular, observe the trajectory of the raceway surface. To determine whether the bearing can be used again, it should be decided after considering the degree of bearing damage, machine performance, importance, operating conditions, and inspection period. The
As a result of the inspection, if there is any damage or abnormality in the bearing, identify the cause of the bearing damage and formulate a countermeasure. In addition, the inspection results, if there are several defects below, the bearings can not be used again, need to replace the new bearings.
a. Any one of the inner and outer rings, rolling elements, and cages are cracked and chipped. The
b. Any one of the inner and outer rings and rolling elements is peeled off. The
c. The raceway surface, ribs, and rolling elements are significantly stuck. The
d. The holder is worn badly or the rivets are loose. The
e. Raceway surface, rolling elements rusty and bruised. The
f. The rolling surface and the rolling body are marked with indentations and scars. The
g. Creep on the inner diameter of the inner ring or the outer diameter of the outer ring. The
h. Super hot discoloration.
i. The seals and dust caps of grease sealed bearings are severely damaged.
The source of rolling track sound is due to the natural vibration of the ferrule after being loaded. Due to the elastic contact between the ring and the rolling element, a nonlinear vibration system is formed. When the lubrication or machining accuracy is not high, the natural vibration associated with this elastic characteristic is excited, and when it is transferred to the air, it becomes a noise. It is well-known that even when bearing components are machined using the highest manufacturing technology available today, there are always minor geometrical errors in the working surface, which causes small fluctuations between the raceways and the rolling elements to excite the natural vibration of the vibration system.
