This cylindrical roller bearing carries the designation NJ317-E-XL-M1, a single row design with a machined brass cage (M1) and reinforced load rating (E, XL). It has two ribs on the outer ring and one rib on the inner ring, giving it a semi-locating function within the shaft assembly. Bore diameter is 85.0 mm, outside diameter 180.0 mm, width 41.0 mm, and net mass is 5.3 kg. The limiting speed reaches 6800 1/min, with a reference speed of 3800 1/min, and radial internal clearance is set to CN (Group N). The rib configuration allows the bearing to take up axial displacement in one direction while supporting radial loads, making it suitable as a semi-locating position bearing in a shaft system. The standard CN clearance suits general running conditions, and the M1 machined cage provides stable roller guidance at the stated speed range. As an open bearing, it requires external sealing and a separate lubrication supply matched to the operating speed and load.