4 Bearing 40mm Bushing Linear Motion. This product data sheet is originally written in English. 4 Linear Ball Bushing LME40UUAJ Works with 40mm Shafts. LME40UUAJ Four Linear Motion Ball Bushing work with 40 mm Shafts, the Inner Diameter is 40mm, the Outer Diameter is 62mm and Length is 80mm. Type: Linear Motion Bushing Bearings. Size: 40mm x 62mm x 80mm. Number of Ball Circuit: 6.