Lot of 10 Ball Transfer Units Flange Mounted Fit Fixing Ball Transfer Unit d mm D mm D1 mm h mm H mm S mm 25.4038.2546.2524.5038.5018 Lot of 10 Ball Transfer Units Flange Mounted Fit Fixing Ball Transfer Unit, with one inch (1"=25.4mm) main ball, used for heavy duty loads, the unit can be used to build a multi-direction conveyor, moving goods, feeding machines and many more, the rest is for your imagination to build a new design or create a new idea.