Belt Conveyor Systems Product Manual 18-in Width Manual #: IM-740-02 11/14. ii v20121005a. TOC-i Table of Contents v20130409a Section 1 overview 1-1 System Length 1-1 Component Dimensions 1-2 Calculating Floor Support Heights 1-3 Recommended Clearances 1-4 Section 2 component DetailS 2-1 Drive Unit, 18-in 2-1 Idler Unit, 18-in 2-4 End Unit, 18