As we know, jaw crusher is a kind of mining equipment that is very important. The equipment stands wear and tear, however it's not all. Eccentric shaft is one of the main vulnerable parts of jaw crusher. If jaw crusher fails to work caused by abrasive eccentric shaft， users would have no idea because they learn little about the maintenance and repairment of jaw crusher. Today， Hongxing Mining Machinery tech you how to repair the eccentric shaft of jaw crusher.

The abrasion of Shaft neck and eccentric section of shaft neck lead to the abrasion of eccentric shaft and axis bending too much or rupture directly. If we repair the broken shaft， the repair quality cannot be guaranteed， so this method is generally not adopted. In this case， the bearing can only be scrapped. If a large area of shaft neck of jaw crusher appears slight wear and tear， then we can fix manually or repair with emery， brush can also be ok. If the eccentric shaft of jaw crusher appears severe wear， we can adopt the following fixes.

Polishing the abrasive shaft neck， control the surface roughness and processing capacity. Then put the size of shaft neck as reference to mate a bearing.

Using electric arc to weld journal surface， then cut to achieve the desired size of shaft neck. Welding technology should be reasonable， avoid distractions axis bending. Additionally， we should select an electrode with a small diameter and control the current intensity.