vertical guide idlers

vertical guide idlers

[′vərd·ə·kəl ¦gīd ′īd·lərz]
(mechanical engineering)
Idler rollers about 3 inches (8 centimeters) in diameter so placed as to make contact with the edge of the belt conveyor should it run too much to one side.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
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