... reached to the international standard.3) Standard level ABEC-1 and ABEC-3.4) Excellent and precise ball track to make ... Car, rolling mill, mining, metallurgical, plastic machinery, etc series(mm) bore diametervariant structure200E10-1200N,NF,NJ,NU,NUP300E10-1200N ... ,NUPNN300030-1200K,/W33,K/W33NNU4900100-1200K,/W33,K/W33 series(mm) bore diameterFC120-600FCD200-800FCDP300-1000 Cage material:brassProduct ...