Mounted Linear Bearing Inside Dia 1 1/2 in Material Aluminum Accelerated Speed 14 fps Bearing Type Plain Body Width (In.) 3.5 in Bolt Size 1/4 in Dimension a 1.75 in Dimension A (In.) - Dimension B 4.75 in Dimension B (In.) - Dimension C 9 in Dimension C (In.) - Dimension d 3.25 in Dimension D (In.) - Dimension E 4.125 in Dimension E (In.) - Dimension F 6.5 in Dimension F1 2.5 in