Centre drives are most common on horizontal conveyors. This style is used where a processor looks for advantages such as saved distance between conveyors, dual direction, and tight transfer.
This involves positioning the motor beneath the conveyor with the tensioner located on the same axle beneath the conveyor. This design is also critical where small diameter rollers are located at both ends of the conveyor. The rollers may not be large enough to motorize and may even be static ‘nose bars’ used extensively in bakeries. The motor in these cases must be on a third axle.