Insert ball bearing designed for shaft mounting via an adapter sleeve, thanks to its spherical outer ring surface that allows fitting into a housing with a matching spherical bore. The outside diameter is 140.0 mm, width 46.0 mm, and net mass 3.23 kg. Sealing on both sides is provided by 2RSR seals, protecting the bearing interior from contamination and retaining lubricant. The spherical outer ring combined with adapter sleeve fixation allows compensation for shaft misalignment and simplifies mounting without requiring a shoulder or precise shaft tolerance. The double-sided 2RSR sealing arrangement supports operation in environments where ingress of dust or moisture must be limited, while the adapter sleeve fixation method makes disassembly straightforward when the bearing needs replacement.