How to identify when to buy SNK bearing bearing, true and false with the old and new

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double row angular bearing - China Manufacturer

Thank you for inquiry my double row angular bearing, Tel : 0086-0379-64390888, E-mail: liuping@lyzyc.cc

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With the trend of social development, the counterfeit original bearing is more and more difficult to identify more and more, bec ause its counterfeit bearings and good bearing size and accuracy is layman from the outside do not come out in this proposed the following identification methods for your reference:
1, packing boxes
The original packaging and are basically the same bearing and thick, while the counterfeit bearing the box Bohou uneven and muddy unclear.ball bearing
2, bearing font to identify
The original bearings, whether steel font or laser font, are very clear and uniform wear. Counterfeit bearing legible, but the font does not wear off marks, counterfeit bearings laser fonts remain fuzzy fonts marks with emery cloth graze font is true, without leaving the font traces are false.china bearing
3, rotation bearing
Original bearing counterfeit bearings are all new bearings, but in the speed or smaller than the original, left hand holding the bearing body sets, right hand toggle c oat to make it rotate, and listen to their hybrid sound, As most of the counterfeit products conditions is a manual operation. Counterfeit bearing a slight hum and rotates slightly uneven.angular bearings
Identify refurbished bearings are: to measure the bearing size (refurbished bearing size is less than new bearings), the watch bearing surface accuracy is smooth (refurbished bearings rough) and the rotation bearing is uniform (refurbished bearings rotating uneven and the size of the ball)