This single row cylindrical roller bearing NU244-E-M1-C3 has a bore of 220.0 mm, outside diameter of 400.0 mm, and width of 65.0 mm, with a net mass of 36.66 kg. The outer ring carries two ribs while the inner ring is smooth (0 ribs), giving the NU design its non-locating function that allows axial displacement between shaft and housing. The cage is machined brass, designation M1, and the bearing is manufactured to the E design for increased load carrying capacity. Limiting speed is 2600 1/min, reference speed 1380 1/min, and running accuracy is held to tolerance class P6. Because the inner and outer rings are free to move axially relative to each other, this bearing serves as a non-locating support on the free end of a shaft, compensating for thermal expansion without introducing axial preload. Radial internal clearance is C3, wider than normal clearance, which accommodates interference fits and thermal growth during operation. The absence of an integrated seal means external sealing and separate lubrication (grease or oil) must be provided by the housing arrangement, and the P6 accuracy class suits applications requiring tighter radial runout than standard tolerance bearings.