The NKE RNA4910-2RSR is a genuine NKE needle roller bearing designed without an inner ring and sealed on both sides (2RSR) for enhanced protection against contaminants. This metric series bearing, featuring a robust cage, adheres to DIN 617 and ISO 1206 standards. With a bore diameter (Fw) of 50 mm, an outer diameter (D) of 72 mm, and a width (C) of 22 mm, it provides high load capacity and compact design for demanding industrial machinery applications.