CEMA Standard No. 502-2022 – Bulk Material Belt Conveyor Troughing and Return Idlers

Pages: 63
Publish Date:  2019, Revision 2022
ISBN: 978-1-891171-92-5

The 2022 Edition includes a complete update of the section “Selection of Idlers,” with updated example calculations in both imperial and metric. Corrections were made to the trough idler images, and some additional clarifications were added to Appendix II: CEMA 502 Comparison to International Standards. Finally, the name of the standard was changed in order to keep the consistency with trough idlers.

In 2019 the CEMA G Idler Dimensions were adjusted to consider the dimensions of the CEMA F Idlers (this adjustment occurred due to values that were less than those associated with the CEMA F Idlers).

In 2016 Members of CEMA’s Idler Committee added Metric Values to all tables, CEMA Roll Run-Out (TIR) Standard, Metric Idler Selection Example, and International Standards Comparison.

In 2004 the edition was reformatted for tables for CEMA B, C, D, and E Troughing Idlers; Picking Idlers; and Return Idlers for easier reference. The Idler Diagrams were redrawn to conform to the revised tables, CEMA Class F Idlers were added, and CEMA Load Ratings and Capacities Tables were reformatted and consolidated.

In 2001 additions were made to technical data for CEMA C, D, and E Picking Idlers; Live Shaft Idler Dimensions and Load Capacities for Rubber Disc and Steel Tube Designs; and modifications to Idler Selection Procedures to include Impact Idler Selection.

In 1998 the edition added technical data for expanded belt widths on CEMA C, D, and E Rollers and Returns. Tables all were reformatted for better access.

Member Price: $7.50
Non-Member Price: $30.00

Digital PDFs are a single-user product with usage granted by CEMA for personal use only.
Digital PDFs are encrypted and require the most current Acrobat Reader.
All CEMA PDFs are copyrighted.