Linear Pillow Block Bearing Inside Dia 5/8 in Material Aluminum Alloy Bearing Type Ball Body Width (In.) 1.75 in Bolt Size - Color Silver Dimension a 2.5 in Dimension A2 1.75 in Dimension A (In.) - Dimension B 4 in Dimension B (In.) - Dimension C - Dimension C (In.) - Dimension D (In.) - Dimension E 3 in Dimension E1 2.125 in Dimension E (In.) - Dimension F 1.44 in Dimension F1 0.28 in