Cylindrical Roller Bearings

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NJ204EM Bearing

Support all kinds of ball and roller bearings Support all kinds of brand: KOYO,NTN,NSK,NACHI,SKF,TIMKEN,FAG,SNR,INA,IKO,ASAHI,MCGILL contact me if you have any inquiry

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Product Details

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d

20mm


D

47mm


B

14mm


m

0.117kg


Cr

32.5KN

Basic dynamic load rating

Cor

24.7KN

Basic dynamic load rating

Grease RPM

19200 1/min


Oil RPM

12800 1/min


Cage

Brass cage


Material

chrome steel


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Support all kinds of ball and roller bearings

Support all kinds of brand: KOYO,NTN,NSK,NACHI,SKF,TIMKEN,FAG,SNR,INA,IKO,ASAHI,MCGILL 

                             

Lubrication method
The lubrication methods of bearings are divided into grease lubrication and oil lubrication. In order to make the bearing function well, first of all, the lubrication method suitable for use condition and purpose should be selected. If only lubrication is considered, the lubricity of oil lubrication will be dominant. However, grease lubrication has the advantage of simplifying the structure around the bearing, comparing the advantages and disadvantages of grease lubrication with oil lubrication. Special attention should be paid to the amount of lubrication, whether oil lubrication or grease lubrication, too little lubrication does not fully affect the bearing life, too much will produce a large amount of resistance, affecting speed  

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