Check the listing for details. 4Pack 5/16" Pillow Block Bearing, Vertical Inner Bore Ball Housing Mounted. Condition: New. Listed at 13.97 USD. Pillow block bearings have a broad application spectrum, in various industries such as machinery, power generation, mining, metallurgy, textile, agriculture, and notably, food processing machinery. Additionally, they are adaptable for use in conveying systems, machinery involved in film processing, equipment, and printing machines.Specification:Color: SilverMaterial: Zinc Alloy, Bearing SteelBearing Bore Diameter: 8 mm / 5/16 InchMounting Hole Diameter: 4.5 mm / 0.17 InchMounting Hole Distance: 42 mm / 1.65 InchOverall Size: 55x13x29 mm / 2.16x0.51x1.14 inch(LxWxH)Packing List: 4 Pcs x Pillow Block BearingAdvantage:Pillow block bearings are made of zinc alloy and bearing steel. It has high hardness and corrosion resistance and is durable, has two bolt holes for installation, easy to replace.