The Lee Linear DPB-20-OPN-S Roller Bearing Pillow Block is a corrosion-resistant component designed for industrial automation and motion control applications. With a height of 5 inches and a weight of 1.5 lbs, this pillow block features a 1.25" bore size and is suitable for a .458 caliber rifle. The two-cavity design and Lee brand reputation make it a reliable choice for linear motion systems requiring precision and durability. Its compact dimensions of 4" length and 3.5" width make it easy to integrate into various automation setups, ensuring smooth and efficient operation.