The lubrication of conveyor chains is always something of a problem, and yet it is most important to ensure that it is correctly done. Conveyor chains of large size are very costly items apart from the fact that a breakdown here will usually put the production line out of commission. A chain is only as strong as the weakest link, and when this link breaks, the plant comes to a standstill. The difficulty with chain lubrication is to ensure the lubricant reaching the bushes of the rollers, and the only successful way to provide for this is to fit each roller and bush with a grease nipple. The problem then resolves itself into a correct method of application, since the job is tedious to do manually, and in fact is often impossible or else can only be done at infrequent periods when the conveyor is not in use.
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