1. Product Overview The SB130 is a heavy-duty radial spherical plain bearing with a double-split outer ring and one-piece inner ring, featuring a wide spherical sliding contact interface. It is manufactured from high carbon chromium bearing steel with phosphate surface treatment and molybdenum disulfide (MoS₂) sintered coating, providing low friction, excellent wear resistance and corrosion protection. This bearing can carry heavy radial loads combined with bidirectional