Shafts are available with a variety of knurl patterns and depths to suit specific application requirements. All shafts are machined from solid, alloy steel and then hard chromed for additional wear resistance.
Rack tooth sprockets fixed to the shafts using Trantorqueâ"¢ bushings drive the shafts via sintered bushing chain. This simple, reliable drive system requires no periodic lubrication. Shaft bearings are sealed for life.
Shims of varying thickness are used between bearing housings to set the gaps between rolls. Easily changed in the field, a thicker shim will result in a larger screen opening.