The Anahuac Mayab University is a private institution of Catholic inspiration founded in 1984.
They are used in the same applications as fender washers. A spherical washer is part of a self-aligning nut; it is a washer with one radiused surface, which is designed to be used in conjunction with a mating nut in order to correct for up to several degrees of misalignment between parts.
The Friction Washer is made of a cylindrical trough with an inclined fast running paddle screw to dewater and clean ground material. The screw is fixed in the housing by means of 2 bearings and enclosed by a stainless steel screen. The ground material and water are fed from above at the lower end of the trough.