1, This series roller is driven by chain. The roller sprocket is available in numerous sprocket sizes.

2, This series roller has one single sprocket which is made of steel and is permanently welded with tube.

3, On the head of non-sprocket roller end, it’s assembled by plastic bearing housing which can reduce the noise and prevent the scraps and dust.

4, The common installation way is female thread which can fixed the shaft tightly and prevent  the shaft axial jumping effectively.