troughing idler

troughing idler

[′trȯf·iŋ ‚īd·lər]
(mechanical engineering)
A belt idler having two or more rolls arranged to turn up the edges of the belt so as to form the belt into a trough.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
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The Tru-Trainer Troughing idler from ASGCO is based on an enhanced load carrying design which features quicker activation, increased swing and overall better performance, according to the company.