Linear Pillow Block Bearing Inside Dia 1/2 in Material Aluminum Bearing Type Plain Body Width (In.) 1.38 in Bolt Size #6 Color Silver Dimension a 2 in Dimension A2 1.38 in Dimension A (In.) - Dimension B 1.69 in Dimension B (In.) - Dimension C - Dimension C (In.) - Dimension D (In.) - Dimension E 1 in Dimension E1 1.688 in Dimension E (In.) - Dimension F1 0.25 in