Transition idlers are found at either end of the conveyor, adjacent to the head and tail pulleys. These idler sets comprise standard idler rolls however the bases into which these rolls are fitted, have a smaller troughing angle to that of the rest of the troughing / carry idlers on the conveyor. Transition Idler Assemblies are available in 3 or 5 roll configurations to suit required belt width, trough angle and Roller spacing.
The reason for this is that the conveyor belt is flat as it passes over the pulleys, under high tension. As the belt changes its form to a full trough of say, 35 degrees (i.e. from Tail Pulley to full trough angle), the belt must be supported through this transition zone. If the belt was fed directly into a full trough from the tail pulley, the belt edges would be over-stressed and damage would result. Similarly, as the troughed angle changes to zero at the head- end, transition idlers provide support through the transition zone. The number of transition idlers required depends on the trough angle of the conveyor.
The number of transition idlers depends on the trough angle of the conveyor. In the case of a 45 degree trough angle, 2 or 3 Transition Idler Sets would be used at either end of the conveyor. As with troughing idlers, transition idlers are available in fixed bases or the garland configuration.
the combination of different XKTE rolling bearings makes it possible to respond to heavy load. Big clearance deep groove ball bearings are utilized in open pit and underground mining.
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