The SKF 258772258212Q is a high-quality genuine SKF tapered roller bearing, consisting of the 25877 cone (inner ring) and 25821 cup (outer ring). Designed for combined radial and axial loads, this bearing features a 44.45 mm bore diameter, an 82.55 mm outer diameter, and a total width of 23.812 mm. It weighs 0.54 kg and is engineered for reliable performance in demanding industrial and agricultural machinery applications. The 'Q' suffix denotes optimized internal geometry for enhanced efficiency and lifespan.