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engineering excellence 

Designer Guide
Selecting the right chain for a given application is essential to
obtain long service life. This guide has been developed for use
with Renold conveyor chain to help in specifying the right chain
and lubrication for your conveyor system. The significance of the
Renold conveyor chain design is emphasised, followed by
guidance on selection procedure. Detailed descriptions are given
of the various methods of application in a variety of mechanical
handling problems and under widely varying conditions. The
supporting material includes various reference tables and

Fig. 1

From the pyramids to the railway revolution, muscle-power of men
and animals has moved goods and materials, but throughout
history, machines, however primitive, have played some part,
becoming more and more versatile.
From the foregoing, it will be seen that a length of chain is a
series of plain journal bearings free to articulate in one plane.
When a chain articulates under load the friction between pin and
bush, whilst inherently low because of the smooth finish on the
components, will tend to turn the bush in the inner plates and
similarly the bearing pin in the outer plate. To prevent this the
bush and pin are force fitted into the chain plates. Close limits of
accuracy are applied to the diameters of plate holes, bushes
and bearing pins, resulting in high torsional security and rigidity
of the mating components. Similar standards of accuracy apply
to the pitch of the holes in the chain plates.

Within the immediate past, mechanical handling has emerged as
a manufacturing industry in its own right, of considerable size and
with countless applications. This is a consequence of its
coverage, which now ranges from the simplest store conveyor
system to the largest flow line production layouts, and also
includes the movement of personnel by lifts, escalators and
Amongst the most widely used types of handling equipment are
conveyors, elevators and similar assemblies. These can take
many forms, employing as their basic moving medium both
metallic and non-metallic components or a mixture of the two.
For the great majority of applications Renold conveyor chain in its
many variations, when fitted with suitable attachments, provides a
highly efficient propulsion and/or carrying medium, having many
advantages over other types. Roller chain has been employed as
an effi...
engineering excellence www.renold.com
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