Abstract: A modular conveyor belt formed of rows of belt modules pivotally interlinked by transverse pivot rods. The modules include a top, product conveying surface and a bottom, sprocket-driven surface. The belt modules have a plurality of first link ends disposed in the direction of travel of the conveyor belt and a plurality of second link ends disposed in the opposite direction. Transverse holes in the link ends are aligned to accommodate a pivot rod. When the link ends of the consecutive rows of side by side modules are intercalated, the pivot rod serves as a hinge pin in a hinged joint between consecutive interlinked rows. The transverse holes are disposed at an angle relative to the top surface of the belt module such that when the belt modules are connected to form a belt the transverse holes in adjacent link ends are disposed at opposite angles.

Abstract: A retaining ring formed with a plurality of arms and an opening for sliding the ring over the shaft. The arms are formed with a convex shape such that elastic pressure is applied to the shaft. Also, the ends of the arms surrounding the opening have cooperating teeth capable of engaging to lock the ring around the shaft.