This single row cylindrical roller bearing has a bore diameter of 50.0 mm, an outside diameter of 90.0 mm and a width of 23.0 mm, with a net mass of 0.567 kg. It features two ribs on the outer ring and one rib on the inner ring, making it a semi-locating bearing of type NJ with reinforced internal design E. The cage is a polyamide TVP2 type, and the bearing carries a limiting speed of 11100 1/min and a reference speed of 5300 1/min. The two-rib outer ring and single-rib inner ring configuration allows the inner ring to move axially relative to the outer ring, letting this bearing accommodate shaft thermal expansion while still providing radial guidance. Radial internal clearance is in group CN, suitable for standard operating conditions without special preload or clearance requirements. The polyamide cage design supports smooth roller guidance at the stated speed ratings, and the E design increases roller complement and load carrying capacity within the same envelope dimensions.