In order to avoid bearing burns, cleanliness of inspection should do so
by:Waxing2020-11-17
In order to avoid bearing burns, detection of cleanliness should do one: quality standard experiment.
In accordance with JB/T ⒛ 50 - country rules
2005 the relevant specification, the impurities in high temperature bearing first cleaning in the cleaning fluid, after cleaning fluid filtration, drying, weighing, calculate the quality of the impurity particles.
Experiment 2: microscope method.
Previous step of this method and quality standard are similar, different cleaning fluid is filtered, directly with a microscope observation of impurity particles in the membrane filter size and quantity.
And still can according to the shape of impurity and identify the chemical composition and content of impurities.
The method most suitable for fine bearings SKF bearing cleanliness measurement.
Experiment 3: automatic particle counter method.
Automatic particle calculation method and quality standard, microscope method is different, it is the basis of the principle of photoelectric theory, directly concluded that the way to the impurity particles quantity and size.
The high precision compare of this way, the average is suitable for high temperature bearing of high cleanliness begged.
Bearing present burns the cause of much of the so-called SKF bearing present state of burn injury refers to: the wheel and the roller bearing raceway and insist on the rack in the rotating heat until discolored sharply, softening, deposition and damaged.
Form the main reason is due to the high temperature bearing of bearing burn of smooth, may not on track smooth agent, smooth agent or too much, too little, is not correct.
It is possible that too much load (
Preloading is too big)
。
Speed is too large.
Clearance is too small.
With water or other foreign matter invasion.
Assume that the above two conditions are not so is the axis, the accuracy of bearing box, shaft deflection.
See here, I think we both want to know the disposal method, first, to smooth agent and smooth, smooth agent for high temperature bearing, and its dosage, and choice of SKF bearing must be corrected.
Discussion to cooperate, bearing clearance, and preloading, and improve the seal installation.
Check the shaft and the precision of the bearing housing.
A: you must be aware of before and after the installation of high temperature bearing, otherwise.
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