This spherical roller bearing accommodates shaft misalignment and combined radial and axial loads through its two rows of rollers guided on a common sphered outer raceway. It has a tapered bore (taper 1:12), bore diameter 80.0 mm, outside diameter 170.0 mm, width 58.0 mm, and a net mass of 6.131 kg. The limiting speed is 4250.0 1/min, with a reference speed of 3400.0 1/min. The E1 design provides an optimized internal geometry for higher load carrying capacity, and the cage is a machined polyamide type, designated JPA. The C3 radial internal clearance, wider than normal, compensates for temperature-related fit changes and shaft deflection during operation. The tapered bore (bore type K) allows mounting on tapered seats or with an adapter/withdrawal sleeve, giving controlled interference fit and easy dismounting. Standard relubrication feature allows relubrication through the bearing during service, which supports maintenance in continuous operation.