This spherical roller bearing carries radial loads and accommodates angular misalignment through its two rows of barrel-shaped rollers running on a common sphered outer raceway. Main dimensions follow DIN 635-2: bore diameter 80.0 mm, outside diameter 170.0 mm, width 58.0 mm, net mass 6.381 kg. The limiting speed is 4250 1/min, with a reference speed of 3400 1/min. The E1 design provides an optimized internal geometry and roller/raceway contact for reduced internal friction, and the bearing is fitted with a JPA cage. Radial internal clearance corresponds to C3 (Group 3), suited for applications where operating temperature and interference fits reduce running clearance below the initial value. The plain cylindrical bore (bore type Z) allows direct mounting on a straight shaft, while the self-aligning capability of the design compensates for shaft deflection and housing misalignment. Relubrication follows the standard feature, allowing grease replenishment through the bearing during service without disassembly.