The design of Flat-Flex wire belts provides one of the tightest possible transfers… with some meshes bending around end-rolls the diameter of a pencil. Various types of end-rolls and nosebars are used to facilitate the transfer of product between conveyors.

End-rolls can be rotating or non-rotating. Rotating end-rolls are preferred because they create less belt wear. Rotating end-rolls are usually supported only by the ends, and rotate at the same speed as the belt to reduce wear on the belt and the rolls. Types of rotating end-rolls include blanks, blanks and sprockets, grooved end-rolls, and free-turning plastic rollers.

However, the placement of the blanks and sprockets differs from that of the rollers. Blanks and sprockets are used in pairs within the odd spaces, similar to the drive shaft set-up shown. These are placed inside the Z-bends with 3 to 5 mm clearance allowed. Transfer rollers are placed with the groove under the Z-bend, so that the Z-bend rolls around and over the roller.

Transfer rollers are placed with the groove under the Z-bend, so that the Z-bend rolls around and over the roller. Rollers are preferred to non-rotating grooved shafts, or grooved nose bars, the following dimensions apply to all types of transfer: