MASTA Adapter and withdrawal BEARING SLEEVES are available in mm and inch size complete with lock nuts and looking washers. The SLEEVES are slotted and heaving external taper of 1:12 to suit corresponding bearing inside shaft hole taper. Adapter sleeves are available in H 200, H 300, H 2300, H 3000, H 3100 Series for millimeter and HE SERIES for inch size.