Mounted Linear Bearing Inside Dia 1/2 in Material Aluminum Accelerated Speed 14 fps Bearing Type Plain Body Width (In.) 1.375 in Bolt Size #6 Dimension a 0.687 in Dimension A (In.) - Dimension B 2 in Dimension B (In.) - Dimension C 1.69 in Dimension C (In.) - Dimension d 1.25 in Dimension D (In.) - Dimension E 1.688 in Dimension E (In.) - Dimension F 1 in