Fundamental difference

different types, different direction of the force to withstand , at different speeds , different loads , different materials, the application of different occasions etc.
Fundamental difference : tapered roller bearings rolling body is tapered roller ; needle roller Tapered bearing needle roller is rolling ;
These fundamental difference determines the structure of tapered roller bearings Needle roller bearings relative to a large , tapered roller in addition to radial force than can withstand axial force , and needle roller bearings can withstand radial forces ;
Single row tapered Roller bearing are double row and multi-row , were applied to different environments and situations ;
Tapered roller bearings Needle roller bearings with respect to higher operating speed ;
Tapered roller bearings are generally of high quality bearing steel and special steel ; rather thin needle roller bearing is used in steel stamping ;
In short , these two types of bearings are not the same type of bearing , there are too many different , have some really far-fetched comparison
Needle roller bearings are long thin needle roller and cage. Cylindrical roller bearings. Is composed of cylindrical and rollers . Column than the needle thick, also known as coarse needle .