Features:Pillow block bearing is a kind of bearing unit which combines rolling bearing and bearing block, which has good versatility and interchangeability.Self-alignment bearing can correct its own alignment once it begins to rotate.Made of bearing steel and cast iron shell, high hardness and sturdy.Two-bolt mounted pillow block bearing, designed for mounting onto bearing surfaces parallel to the shaft axis.Stable and dependable performance.Specification:Type: UCP204Material: Bearing steel + IronWeight: Approx.1050g/ 37ozInside Dia.: 20mm/ 0.79inOutside Dia.:47mm/ 1.85inPackage List:2 * Pillow Block BearingNote:Please allow slight error due to manual measurement. Thanks for your understanding..