Components of a belt conveyor. 1. Aluminium profile conveyor belt supports. 2. Driving unit. 2.1 Driving unit 2.2 Motor bracket 2.3 Counter-bearings 2.4 Drive (electrical) 3. Extremity unit. 3.1 Extremity pulley 3.2 Extemity parts (such as clamping straps) In addition, a series of add-on modules are available, such as lateral guides, stands, etc.