Mounted Linear Bearing Inside Dia 3/4 in Material Aluminum Accelerated Speed 14 fps Bearing Type Plain Body Width (In.) 1.875 in Bolt Size #8 Dimension a 0.937 in Dimension A (In.) - Dimension B 2.75 in Dimension B (In.) - Dimension C 2.06 in Dimension C (In.) - Dimension d 1.75 in Dimension D (In.) - Dimension E 2.375 in Dimension E (In.) - Dimension F 1.25 in