Mounted Linear Bearing, Inside Dia. 1/2 in, Material Aluminum, Accelerated Speed 14 fps, Bearing Type Plain, Body Width (In.) 1.25 in, Bolt Size #8, Dimension a 0.5 in, Dimension A (In.) -, Dimension B 1.63 in, Dimension B (In.) -, Dimension C 1.25 in, Dimension C (In.) -, Dimension d 1.25 in, Dimension D (In.) -, Dimension E 0.25 in, Dimension E (In.) -, Dimension F #8