Support rollers are the kind of gears
that provide support to cable and other related products. They are used to
muffle vibration noise. Many support rollers in web manufacturing plants are
driven to rotate by the friction between the roller surface and the web. At
higher speed operation, air film between the roller surface and the web can
be large enough to cause slippage. Therefore, it is important to keep the
friction torque of the roller bearings very small. Putting rollers close
together can decrease pulling tension.
