TANK RAILS, 12’ LONG MATERIAL: 6061-T6 ALUMINUM MACHINED IN TWO PIECES 70 NEEDLE ROLLER BEARING INSTALLED PER RAIL Welcome to our exceptional project featuring the creation of 12-foot-long tank rails, meticulously designed for unparalleled performance. Crafted from top-grade 6061-T6 aluminum, these rails embody both durability and lightweight characteristics. Engineered in two precisely machined pieces, their seamless integration ensures flawless functionality. What sets these rails apart are the 70-needle roller bearings incorporated into each rail, promising smooth and efficient movement.