This insert ball bearing carries radial loads through a wide inner ring, allowing it to be mounted directly on a shaft without additional adapter sleeves. Bore diameter is 50.0 mm, outside diameter 90.0 mm, width 49.2 mm, and net mass is 0.98 kg. The bearing uses KRR sealing on both sides, which keeps contaminants out of the raceway area and retains grease inside the housing. The wide inner ring design allows the bearing to accommodate slight shaft misalignment and simplifies axial positioning during installation. With KRR sealing already fitted, the unit is supplied ready for grease lubrication and does not require a separate cover or shield to be added before mounting. Symbol GE50-XL-KRR-B identifies bore size, sealing type, and design series for correct selection when replacing a worn insert ball bearing of the same dimensional series.