4 Linear Ball Bushings Item LME16UU AJ Works with 16mm (0.6300") Shafts 4 Linear Motion Bearings LME16UUAJ, Linear Motion Ball Bushing works with a 16 mm Shafts, Size is 16mmx 26mmx 36mm, the Inner Diameter is 16mm, the Outer Diameter is 26mm and Length is 36mm.