This is my another small work to convert existing LM12UU linear bearing to LMF12UU using 3D printer. The design is quite simple and matches the exising LMF12UU dimensions expect the outer diameter of the LMFUU.
However this will serve the purpose of the need of the flange type bearing.
The design is made to fit for LM12UU. once u printed just insert the bearing and provision is made for the locking also if have to press hard to fit into flange. For fixing Use M3 Nut and bolts.