This spherical roller bearing carries two symmetric rows of rollers with a common sphered raceway on the outer ring, allowing the inner ring, rollers and cage to swivel relative to the outer ring axis. Bore diameter is 120.0 mm, outside diameter 215.0 mm, width 58.0 mm, and net mass 8.85 kg. The E1A design features symmetric rollers and two outer ribs, giving stable roller guidance under combined load. Cage execution is M (machined metal cage), and the H40 designation indicates a relubrication feature allowing grease to be fed directly to the raceway during operation. Limiting speed is 3650 1/min, reference speed 2700 1/min. The C4 radial internal clearance (Group 4) provides a larger operating clearance than standard, compensating for shaft deflection, misalignment and thermal expansion during operation. This clearance class suits mounting conditions where an interference fit on the shaft reduces the initial internal clearance, or where the shaft is expected to flex under load. The spherical raceway design of this bearing accommodates angular misalignment between shaft and housing without inducing additional internal stress, while the H40 relubrication feature supports maintenance of grease lubrication without dismounting the bearing.