Contact fatigue spalling in bearing food mixing equipment surface, often accompanied by fatigue crack, first from the contact surface following the largest alternating shear stress, and then extend to the surface to form different flake shape, such as point to point pitting or pitting spalling, stripping the completed patch of shallow spalling. Due to the peeling surface gradually expanded, and often deep extended, forming deep spalling.
When the load exceeds the limit strength of the material as a result of parts breaking overload fracture. Overload causes the main host of sudden failure or improper installation. Food bearing mixing equipment parts of the micro-cracks, shrinkage, bubbles, large foreign materials, organizations and local overheating burn and other defects in severe shock or vibration overload will cause fracture in the defect, known as the defect fracture. It should be pointed out, food mixing equipment FAG bearings in the manufacturing process, the raw materials into the factory inspection, forging and heat treatment quality control, process control equipment can be correctly analyzed by the existence of the defect, the control must be strengthened in future. But generally speaking, failure mostly overload failure food mixing equipment bearing fracture usually appear.
In order to determine the angular contact ball gas remove dynamic mixer bearing can be used again, to check its size precision, accuracy of rotation, internal clearance as well as the mating surfaces, raceway, cage and sealing ring. After pneumatic agitator bearing on the installation, if not carefully tuned, straightening can lead to angular contact ball pneumatic mixer NSK bearings subjected to additional loads, friction and vibration. These may accelerate fatigue and reduced pneumatic agitator bearing service life, and may damage the lifespan of the machine parts. In addition, vibration and friction may increase significantly increased energy consumption and premature failure risk.
Pneumatic mixer bearings require proper lubrication once again, perfect its performance. Method for pneumatic mixer bearing lubrication, divided into grease lubrication and oil lubrication. In order to make the pneumatic agitator bearing play function very well, first of all, to choose suitable conditions, using the method of lubrication. If only consider lubrication, oil lubrication of lubrication advantage. But the lubricating grease can simplify the pneumatic structure around the mixer SKF bearings.