FAG NJ2320 EM1AC4 is a single row cylindrical roller bearing produced by FAG brand under Schaeffler Group in Germany. It belongs to the NJ series (inner ring single gear edge, outer ring double gear edge design) and is suitable for high radial load conditions. The following are its key parameters and characteristics:

Installation and maintenance
Coordinated use: It is recommended to pair with HJ2320EC diagonal retaining ring to withstand axial forces
Installation accuracy: It is necessary to ensure the machining accuracy of the shaft and bearing seat holes to avoid unbalanced loading

Basic parameters
Model: NJ2320 EM1AC4
Inner diameter: 100mm
Outer diameter: 215mm
Thickness: 73mm
Retainers: EM1 represents machine cut brass retainer (roller guide), AC4 represents optimized internal design and C4 clearance (larger radial clearance)

Performance characteristics
High bearing capacity: The dynamic rated load is about 670kN, and the static rated load is 735kN, suitable for heavy-duty machinery such as mining equipment, rolling mills, etc.
Self centering compensation: The NJ series can withstand a certain axial tilt (usually ≤ 2 °), but it needs to be matched with other bearings to withstand axial loads
Lubrication optimization: The suffix "W33" indicates the presence of lubrication grooves and oil holes (if the model includes this suffix), but EM1AC4 is not clearly marked, please refer to the specific manual

Application scenarios
Industrial fields: metallurgical equipment, vibrating screens, heavy-duty reducers, papermaking machinery, etc
Alternative models: SKF NJ2320ECML/C4, NSK NJ2320EM, etc., please pay attention to the differences in cage and clearance