... by the rim on outer or inner ring. Roller and raceway are connected in line, so its radical load rating ... are many types for cylindrical roller bearing, if divided by structure, there are types of N, NF, NJ ... NU, NCL, RN and RNU. 2.If divided by loading capacity, there are standard type and strengthened type ... , so it ahs bigger capacity of load rating. 3.If divided by the rows of the cylindrical rollers, ...