Two rows of barrel rollers running between a common outer raceway and two inner raceways inclined to the bearing axis give this spherical roller bearing its self-aligning capability. Main dimensions follow DIN 635-2: bore 55.0 mm, outside diameter 120.0 mm, width 43.0 mm, mass 2.398 kg. The E1 design carries a JPA cage, radial internal clearance falls in the CN (Group N) range, and the limiting speed is 5800 1/min with a reference speed of 4500 1/min. The spherical geometry accommodates shaft misalignment and deflection without loss of load-carrying ability, making the bearing suitable where shaft or housing alignment cannot be held to tight tolerances. Standard relubrication feature allows grease replenishment during service, and CN clearance corresponds to normal operating conditions without preload or excessive play. Bore type Z indicates a cylindrical bore for direct mounting on a straight shaft seat.