This single row cylindrical roller bearing NU307-E-XL-M1 has a bore of 35.0 mm, an outside diameter of 80.0 mm and a width of 21.0 mm, with a net mass of 0.55 kg. The outer ring carries two ribs while the inner ring is smooth (type NU), so the bearing acts as a non-locating support, allowing axial displacement between inner and outer ring. Radial internal clearance is CN (Group N), the cage is a machined M1 design, and running accuracy corresponds to P6. Limiting speed is rated at 16400 1/min, with a reference speed of 7900 1/min. The smooth inner ring and free axial movement make this bearing suitable as the floating bearing in a shaft arrangement where thermal expansion or shaft deflection must be compensated without transmitting axial load. The P6 running accuracy supports applications requiring tighter rotational precision than standard tolerance, and the CN clearance provides a standard operating fit for general mounting conditions. The M1 cage design suits the stated speed range under normal grease or oil lubrication.