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| 1. Frame Construction |
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| The frame must be sufficiently stiff
to prevent twisting or other forms of dimensional change
while loaded. The outer dimensions must remain within stated
tolerances, so that the belt cannot become trapped or fall
out of the slide rails. |
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| 2. Slide Rails |
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| There should be as few joints as possible
and they should always be avoided in the curves. All joints
must be smooth so that the belt cannot get caught in a joint. |
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| 3. Sprockets |
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| The sprocket in the outer curve should
be fitted as close to the outer edge as possible. All drive
wheels be locked so that they cannot move sideways. Contrary
to the drive wheels, the non-driven wheels should be fitted,
so that they run freely on the shaft. |
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| 4. Turning Shoe |
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| It is vital that the transition between
the turning shoe and the slide rails is smooth with no chance
that the belt can get caught. |
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| 5. Tightening |
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| The belt should normally be installed
with an excess length of approx. three elements, depending
on the total length of the belt. In the event of the return
belt rising immediately after the drive unit, a take-up
roller may be necessary. On short belts, tightening to a
single elementīs excess length may be sufficient. An "accumulation"
of the belt must never occur at the drive wheels. |
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| 6. Extra Drive Unit |
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| On heavily loaded belts, an extra drive
unit may be necessary. This motor can be of the type "BAUER
DREHFELDMOTOR" in order to prevent the two motors from working
against each other. The extra motor should be placed at
the non-driven end, but under special circumstances may
be placed at the centre of the belt. |
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This page is
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Copyright
© 2000 by P.B.A. Industrial Supplies Ltd and
Scanbelt A/S
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