This single-row cylindrical roller bearing carries two ribs on the outer ring and a smooth inner ring, configuring it as a non-locating bearing that allows axial displacement between shaft and housing. Bore diameter is 80.0 mm, outside diameter 170.0 mm, width 58.0 mm, with a net mass of 6.4 kg. It runs with a solid brass cage (M1) and features the E design for increased roller complement. Limiting speed is rated at 7200 1/min, reference speed at 3450 1/min, with radial internal clearance in CN (Group N) and running accuracy to P6. The absence of ribs on the inner ring lets the bearing accommodate axial shaft movement while transmitting purely radial loads, making it suitable as a floating bearing position in a shaft arrangement. The M1 cage supports stable roller guidance at the given speed range, and the P6 accuracy class permits tighter shaft and housing fits where running precision is required. Standard CN clearance suits general mounting conditions without preload, and the open design requires external sealing and lubrication arrangements to be provided by the housing.