Roots FansIn the process of using the bearings have problems, then the bearings appeared to damage what is the reason? About this problem Roots fan editorial take you to understand.
1, improper assembly of bearings, such as cold installation of uneven knock bearing inner ring so that the shaft is abraded, resulting in the inner ring of the bearing and the outer ring with the loss of interference or interference becomes small, the phenomenon of running the inner ring, the installation of the motor end cover is uneven knock, resulting in the end cover bearing chamber and the outer ring of the shaft with the phenomenon of running the outer ring too loose. Whether to run the inner ring or run the outer ring will cause the bearing operation temperature rise sharply, as long as the bearing is intact, allowing intermittent run the outer ring phenomenon exists.
2, bearing bearing wall is not clean, or add grease is not clean. For example, bearings to keep tiny steel material for thorough cleaning, running is bearing roll to damage caused by high temperature rise burned bearings.
3, bearing re-exchange processing, motor end cover nesting after the excess surplus or oval degree exceeds the standard caused by bearing ball clearance is too small or uneven resulting in bearing operation friction increases, the temperature rises sharply until burned.
4, due to the stator, rotor core axial misalignment or re-axis machining accuracy is not enough, resulting in the bearing inner and outer ring is not in a cut surface caused by the bearing operation “to eat other strength” after the temperature rises until burned.
5. Bearing damage due to mixing of different types of grease.
6, the bearings themselves have quality problems, such as raceway rust spots, rotation is not flexible, clearance is too small, cage deformation.
7, the spare machine does not run for a long time, grease deterioration, bearing rust and the only maintenance and maintenance can only be used to pay attention to the regular inspection and regular replacement of the same brand of grease.
On the “Roots fan bearing damage causes” Roots fan editor will introduce you here, if you still have questions you can visit our website to consult the understanding.