Features: 1.High quality and good service 2.Less friction and low noise 3.Competitve price 4.Durable 5.Ability to carry heavy loads 6.Less coefficient of friction 7.High limiting speed 8.Large size range:inner diameter from 20mm-800mm. 9.Variationsofstructure:NU,N,NJ,NF,NUP,NH,NCL...V,NB,NU...V,NNU,NNCF,NNCL,NNCS,FC,FCD,FCDP..10 Physical Characteristics: 1) Cylindrical roller bearing can be separated by single row,double rows and four rows. 2) This kind of bearing can be submitted to high radial load and some axial load. 3) The rolling element of cylindrical roller bearing is cylinder,the two ends of the external lines have the corrective slope which can eliminate the contact stress. 4) NN and NNU design cylindrical roller bearing have high rigid and apply to machines such as millings.