This cylindrical roller bearing carries the single row of rollers guided by a machined cage (M1), with two ribs on the outer ring and one rib on the inner ring, corresponding to design type NJ. Bore diameter is 45.0 mm, outside diameter 100.0 mm, width 36.0 mm, and net mass 1.43 kg. The E design indicates a reinforced internal geometry for increased load capacity. Limiting speed is 12800 1/min, with a reference speed of 5200 1/min. The rib arrangement gives the bearing axial guidance in one direction, making it suitable as a semi-locating position on a shaft. Radial internal clearance falls in group CN, matching standard fit and preload conditions for general shaft and housing tolerances. The machined M1 cage provides stable roller guidance at the stated speed range, while the single-row layout keeps radial load transfer straightforward without added axial capacity beyond the one-directional rib contact.