Brand words, labels, etc. will be printed on the bearing body. The font is very small, but are factory produced mostly use Seal technology, and embossing without overheating before processing, so although the small font, but concave deep, very clear. The font of counterfeit products not only fuzzy, rough printing techniques, font floating on the surface, some of them can be easily wiped off by hand.
The left hand holding the bearing sets bearing the body, right hand toggle coat its rotation, to hear whether there are hybrid ring. Due to poor production conditions for most of the counterfeit products, fully manual mill operation in the production process will inevitably be braced with sand impurities hidden in bearing the body, so the hybrid will be issued when rotating ring. This is the biggest difference between the brand and strictly enforce production standards, and machine operators are factory.
It should pay particular attention to buy bearings. It is easy to leave the domestic anti-rust technology is not particularly home bearing body rust treatment thick traces of oil, hold in your hands sticky viscous thick foreign original bearings could barely see traces of anti-rust oil touches particularly careful expert bearings smell a smell, certainly under the anti-rust oil, just do not see it.
The so-called bearing chamfer, is the junction of the horizontal surface and vertical surface bearing counterfeit due to the limitations of the production technology, in these parts of the rougher edges handling unsatisfactory.
Vibration of bearing damage can be quite sensitive, flaking, creasing, corrosion, cracks, wear, etc. will be reflected in bearing vibration measurement. So, through the use of special bearing vibration measurements (frequency analyzer) can measure the size of the vibration frequency can not infer the specific circumstances of unusual. After the measured values due to the conditions of use of the bearing or sensor mounting position, etc. different in advance of each machine measured values were analyzed and compared to determine the criterion.
We then look at the influence of the temperature of the bearing.
High temperatures often said that bearing in an abnormal situation. The high temperature is also harmful to the bearing lubricant. Sometimes bearing overheating can be attributed to the bearing lubricant. If the bearing in the long term even transfer over 125 ℃ temperature reduce bearing life. High-temperature bearings caused by reasons including: lack of lubrication or over lubrication, lubricant. Contains impurities, the load is too large, bearing loss of the ring, the lack of space, and oil seals produce high friction, and so on.
Continuous monitoring bearing temperature is therefore necessary, in either measurement bearing itself or other important parts. If it is in the case of operation conditions unchanged, any change in temperature can be expressed has malfunctioned.
Regular bearing temperature measurement by means of a thermometer, digital thermometer can accurately measure the bearing temperature according ℃ or Fahrenheit temperature fixed units. The importance of the bearing, which means when it is damaged, can cause equipment downtime, so this type of bearing temperature probe should preferably be retrofitted.


Other News:
Bearing Quality common effects on the use of
How to determine reliable outside ball bearing
Rolling of the composition and the role of the parts
Maintenance and care of the rolling mill bearing
Questions about the bearing axial displacement and stiffness
Bearing installation force requirements
Reason of bearing retaining part fracture
Rolling bearing damage investigation and Countermeasures