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Jaw crushers' maintenance technology

Jaw crusher which is a type of highly-efficient and energy-saving crushing equipment. It is usually applied for coarse, intermediate and fine crushing of various rocks, including limestone, shale, basalt, pebble, bluestone, etc. The jaw crusher features simple structure, excellent strength, reliable performance, easy overhaul and maintenance, and low production and construction cost.

The wear phenomenon is inevitable in the daily operation of Jaw crusher, only do we regularly maintain the machine we can prolong the service life of a jaw crusher to the maximum. So we should maintain the jaw crusher shaft, the eccentric shaft and bearing for long-term!

First of all,the jaw crusher is working in the shock load, the service life of the Babbitt alloy lining on the bearing is about two years at the maximum, if the service life exceeds the time limit, you will need to re-cast. If the eccentric shaft and the bearing, spindle and bearing wear and its top gap is 1.5 times larger than the original of that, you need to add pad adjustment or replace them.

Once again,  if the shaft wear is rare, you can do the turnery on the turning-lathe only to repair its geometry to make the shaft neck reach the correct geometry. And then correspondingly reduce the inner diameter of the bearing. However, after a few such treatments, the size of the shaft neck will decrease 5% of the original, then it cannot be turned any more, it should be replaced with new axis.

Although these two points are very small aspects, it is very necessary to maintain the jaw crushers axis as well.