109-933, BNL, 2 Hole Flange Bearing Unit, SFT12M/4N/D, 12mm ID, Brand BNL, Inside Diameter 12mm, Bearing Unit Type Flange Bearing Unit, Number of Mount Holes 2, Material Acetal, Stainless Steel 2 Hole Flange Bearing Unit, SFT12M/4N/D, 12mm ID