K-Self Aligning Return Idlers for both trough and return applications are used to overcome conveyor belt mis-tracking by automatically provide conveyor belt centering. They are made to suit the existing belt profile and are constructed using a centre pivot bearing. The side servo rollers sense the direction of the belt and move the roller frame to the correct central position. They are available in offset and In-line configurations.
It is recommended that one or two sets of the K-Self Aligning Idlers are installed for the return side of belt approaching tail pulley at 6 to 9 metre intervals from the pulley. It is advisable to use K-Self Aligning Return Idlers on the carrying side approaching head pulleys and along the whole carrying and return runs at approximately 120 and 60 metres respectively.