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| The
Scraper is attached to the linear drive
end bushings. The central opening in
the Scraper is snug around the shaft.
As the drive traverses along the shaft,
the leading edge of the Scraper wipes
the shaft clean. Grease, dirt and other
particulate contaminates are accumulated
at either end of the shaft, and may
be wiped away with a cloth. Scraper/Wipers
accommodate all common sizes of grease
guns. A felt ring inside the fitting
absorbs and evenly distributes lubricant
around the shaft. |
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Scrapers
reduce maintenance costs by automatically cleaning dirt and
debris from the drive shaft. Mounted on either end of the
linear drive box, Scrapers prevent build up of absorbent (dust,
wood/paper pulp) and non-absorbent (metal chips) particulate
contaminants. Optional Scrapers are available already installed
on Uhing roilling ring linear drives. Some models are field
installable.
Scraper/Wiper assemblies are also available. A Scraper/Wiper
assembly consists of a Scraper combined with a special grease
fitting and internal felt ring. This arrangement facilitates
both cleaning of the shaft, and automatic shaft lubrication.
Scrapers,
or Scraper/Wipers, may be used in applications where dirt
or grease falling onto the shaft poses a problem, or in other
situations where keeping the shaft clean and well-lubricated
is desired. Scraper assemblies are lightweight, durable and
inexpensive. They keep debris from entering the actuator housing
and possibly fouling the bearing assembly. Scrapers virtually
eliminate the need to stop production to clean the drive shaft.
They also make expensive, space-consuming bellows assemblies
unnecessary.
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