Used On The Return Transom To Support The Belt When The Materia I Being Conveyed, Even If Only A Little Sticky, Is Very N Viscous.
The Helical Spiral Form Of The Non-abrasive Rings, Assembled Onto The Base Roller Shell, Performs A Cleaning Action A Nd Reduces The Tendency Of Material To Deposit Itself And Stick To The Surface Of The Dirty Side Of The Belt.