6301DDU Bearing 12x37x12 Sealed N222MY If your build needs solid

If your build needs solid joints that can flex under pressure

go with Japanese precision

SBT-1 CS 1/4" Stud Mounted Ball Transfer Unit

Open bearings slide on supported shafts to reduce sag over long lengths

Equal FAG 6824

6301DDU Bearing 12x37x12 Sealed N222MY If your build needs solid6301DDU Sealed Ball Bearing 12mm x 37mm x 12mm 6301DDU sealed ball bearing, measures an inner diameter of 12mm, outer diameter is 37mm and the width is 12mm, made from durable 52100 alloy steel, commonly known as chrome steel. 6301DDU Ball Bearing Deep Groove Ball Bearing Material: Chrome Steel Closures: Rubber Seals Lubrication: Pre lubricated with grease Dimensions: 12mm x 37mm x 12mm Metric Inner Diameter: 12mm Outer Diameter: 37mm Width: 12mm