Unpowered Beading Machine Product Description This gearbox and lower beading device is driven by the main shaft. The gearbox drives the roller to fulfill the beading; Unpowered Beading Machine Advantages: Â Â 1, Safety, to avoid the gear and chain exposed in outside 2, To reduce the oil leaking 3, More convenient to adjust the rubber roller 4, Low energy consumption after put into use; the box type design greatly reduces the maintenance rate