How to assemble needle bearing vs roller bearing?

How to assemble needle bearing vs roller bearing?
When installation, the surface coated with grease inside the needle bearing vs roller bearing outer ring first, against the tight inner surfaceneedle: then replace the shaft neck of the needle bearing vs roller bearing inner ring or auxiliary sleeve into the outer ring hole, and make it face alignment installed shaft end face or installed on the shaft bearing inner ring end face, and then use pressure on the press or hammer knock.  
Needle bearing vs roller bearing can also be installed in this way, that is, the outer diameter of the auxiliary sleeve is coated with a thin layer of lubricating oil, set into the bearing outer ring, so that the auxiliary sleeve and the bearing outer ring form a ring hole, and then the needle is installed in the ring hole.    

For needle bearing vs roller bearing without inner ring or outer ring, in the installation, the rolling surface of the shaft or shell hole can be first coated with a thin layer of grease, and the needle in turn close to the grease on the installation part.  

There should be a gap when sticking the last needle roller, and the size of the gap should be 0.5mm on the circumference of the needle roller bearing.  The last roller can not be hard squeezed into it, or one less roller, because when hard squeezed, the bearing will be stuck and can not rotate;  When less loading, the clearance is too large, which is easy to cause torsion and fracture of needle roller when needle bearing vs roller bearing is running.  For needle bearing vs roller bearing with only stamping outer ring, because the outer ring wall is very thin, do not use hand hammer to install, should use press into.  Because the pressure is not uniform when the hand hammer is beating, it is easy to cause local deformation of the outer ring of the needle roller bearing. 
If you need needle bearing vs roller bearing or need any other bearings, please feel free to contact me!
Contact: Leon
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