... precision,low noise 3.Short delivery 4.NU and NJ series cylindrical roller bearing High quality,low noise, competitive price and customization ... reducing gears, handling machineries and transporters; therein, the four-row cylindrical roller bearing is mainly applied to the rolling mill. Inner ... for four row roller: FC, FCE and FCDP series Seal: Z, 2Z, RS, 2RS, RZ, 2RZ, ZN, 2ZN inner packing: Individual ...