With the same dimensions of the standard sleeves, they are recommended for shafts or large assemblies, because channels of oil injection are provided, facilitating assembly and disassembly mainly.Material: Nodular BGFN 01, 02, 03 (base GGG50) , which is the option with the highest tensile strength. Specifications: Brand BGL MPN AOH 2356 ID - Inner Diameter 260mm OD - Outer Diameter 280mm Width 212mm Weight (kg) 19.8