Linear Pillow Block Bearing Inside Dia 3/4 in Material Aluminum Alloy Bearing Type Ball Body Width (In.) 1.88 in Color Silver Dimension a 2.75 in Dimension A1 0.94 in Dimension A2 1.88 in Dimension B 4.5 in Dimension E 3.5 in Dimension E1 2.375 in Dimension E2 0.43 in Dimension F1 0.31 in