The alignment of the pulleys and sprockets  and the correct tensioning of the belts and chains represent vital operations in the maintenance activity of these types of mechanical transmissions. Improper misalignments and tensioning induces vibrations in machines and equipment, as well as premature wear of the components.


There are 3 types of misalignment:

  1. Angular misalignment in vertical direction


  1. Angular misalignment in horizontal direction


  1. Parallel misalignment (offset) in the horizontal direction







Alignment is performed using the laser devices.

Various mechanical or electronic devices can be used to check the tensioning.