Why does the Overhead Crane Bridge leak oil?

Why does the Overhead Crane Bridge leak oil?

Long time using Overhead Crane Bridge, there will be oil leakage gear reducer, Generally speaking, the cause of oil leakage of the bridge crane reducer is mainly the following three points:

First, the use of improper use of units caused by multiple blockage, Causing excessive internal pressure, The lubricating oil seeps out along the joint surface of the reducer under pressure. Or too much fuel, the oil level is too high; The other is the long-term fastening bolts fastening, maintenance, loosening of the connecting bolts, making the junction of the two boxes is not tight and Oil spill;

Second, it is possible that the design of the reducer itself is not reasonable enough, such as the lack of design of the ventilation hole or too small an air hole, which makes the internal pressure of the reducer difficult to balance with the external pressure, resulting in the leakage of the lubricating oil;

Third, the manufacturing accuracy of the reducer has not reached the requirements, and the precision of the joint surface of the box body is not enough, which results in the oil seepage due to the lax sealing. In addition, the oil pool of the reducer is composed of upper and lower case, because of the long-term operation, the connection surface of the two boxes is not tight seal and easy to leak oil.