NF 305 ETN1 Cylinder Roller Bearings N NU NJ NUP NF2205 205 305 2305 E ETN1

Cylindrical roller bearings have a large load capacity and mainly bear radial loads.
       The friction between the rolling elements and the flange of the ring is small, making it suitable for high-speed rotation.
       According to whether the rings have flanges or not, they can be classified into single-row cylindrical roller bearings such as NU, NJ, NUP, N, and NF, as well as double-row cylindrical roller bearings such as NNU and NN.
       This bearing has a structure where the inner ring and the outer ring can be separated.

The different types of cylindrical roller bearings are designated based on their structural features and intended applications:
N..EM: Cylindrical roller bearing with a standard inner ring without any ribs, suitable for radial loads.
NU..EM: Bearing with a removable inner ring and two integral flanges on the outer ring, designed for high radial loads and accommodates axial displacement.
NJ..EM: Features a removable inner ring and one integral flange on the outer ring, primarily used for applications where axial displacement is required.
NF..EM: Similar to NJ type but designed for applications where the bearing is subjected to both radial and axial loads, but the axial displacement is not required.
NUP..EM: Cylindrical roller bearing with a removable inner ring and one integral flange on the outer ring, suitable for axial displacement and can also accommodate radial loads.
RN..EM: Special type with a non-removable inner ring and one integral flange on the outer ring, often used in specific design requirements.
RNU..EM: Bearing without an inner ring, designed for easy mounting and dismounting, suitable for applications where the inner ring cannot be used.
These designations provide information about the bearing's construction and its ability to withstand different types of loads and displacement.