Bearing failure what are the basic form of concrete:
1. The adhesive and abrasive wear failure
Is one of the most common failure modes of all kinds of bearing surface. Bearing parts between the relative sliding friction causes the surface of the metal loss known as sliding friction losses. Continue to wear will make the parts size and shape change, bearing fit clearance increases, working surface morphology becomes bad, thus loss of rotating accuracy, bearing cannot work normally. Sliding wear forms can be divided into the abrasive wear, adhesive wear and corrosive wear and fretting wear, etc., one of the most common for abrasive wear and adhesive wear.
Bearing parts of the friction surface between the friction caused by external grinding hard particles or metal surface wear phenomenon belongs to the abrasive wear. It is often in the bearing surface caused by chisel cutting type or furrows type of scratches. External hard particles often come from the dust in the air or the impurity in the lubricant. Adhesion wear is mainly due to the friction surface peak friction surface is uneven, the outline of local friction heat make friction surface temperature, lubricating film rupture, serious when surface layer of metal will be partial melting, produce adhesive contact point, avulsion and adhesion of circulation process, serious when cause friction welded and stuck below. Vortex street flowmeter
2. Contact fatigue (wear) of fatigue failure Series Of SKF Bearings http://www.timkenbearings-hk.com/news.html .
Contact fatigue failure is one of the most common failure modes of all kinds of bearings, bearing surface is the repeated effect loop contact stress and failure. Bearing parts surface contact fatigue spalling is a fatigue crack in the process of crack initiation and extension. Initial contact fatigue crack first from the maximum orthogonal shearing stress under contact surface, and then extended to form a hemp dot spalling or small exfoliate, the former is called pitting corrosion or pitting peeling; The latter is called the shallow flaking. Such as the initial crack on the border of hardening layer and the core area, caused the early spalling of hardening layer, it is called a hardening layer peeling off.
Centrifugal pump lubrication of rolling bearings mainly is to reduce friction power consumption, lower wear rate and also act as a cooling, dust, rust and vibration absorbing effect. Good lubrication is to ensure that equipment normal operation. Reduce equipment wear and tear, prevent equipment accidents, reduce the power consumption and prolonging the service life of the repair cycle and effective measures.
Our factory baking furnace circulating water system by use of centrifugal pump is single stage single suction pump, all kinds of technical parameters are as follows