Pillow Block,20 mm,54 mm L 20 mm, Material Aluminum Alloy, Accelerated Speed up to 150 m/sq sec, Bearing Type Ball, Body Width (In.) 60 mm, Color Silver, Dimension a 60 mm, Dimension A1 30 mm, Dimension B 54 mm, Dimension E 32 mm, Dimension E1 45 mm.