The RNU 2215 RICH Cylindrical Roller Bearing (88.5 x 130 x 31 mm) is designed without an inner ring for maximum shaft diameter, offering high radial load capacity and axial freedom.
The RNU 2215 RICH is a heavy-duty Cylindrical Roller Bearing without an Inner Ring manufactured by RICH. This configuration, identified by the RNU designation, consists of a steel cage retaining the cylindrical rollers and the outer ring, but excludes the inner ring.
The absence of an inner ring means the rollers run directly on the shaft, which must be hardened and ground to serve as the inner raceway. This design offers a significant advantage: it allows for a larger shaft diameter (up to 88.5 mm in this case) relative to the bearing's overall size, providing increased shaft rigidity. With 130 mm outer diameter and 31 mm width, the RNU 2215 RICH is primarily used in applications where high radial load capacity, high rigidity, and axial displacement compensation are required, such as gearboxes, rolling mills, and electric motors.
Data sheet
The RNU 2215 RICH Cylindrical Roller Bearing (88.5 x 130 x 31 mm) is designed without an inner ring for maximum shaft diameter, offering high radial load capacity and axial freedom.
