Difference between Flat Belt Drive And V-Belt Drive
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🔗Flat Belt Drive - Types, Advantages and Disadvantages
🔗V-Belt Drive - Advantages and Disadvantages
Flat Belt Drive
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V-Belt Drive
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Flat belt has a rectangular
cross section.
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V-belts are characterized by
their trapezium shaped cross section.
Two or more straps can be used
on pulleys with multiple grooves.
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Simple
design, inexpensive and require little
maintenance.
|
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Precise alignments of
shafts and pulleys are not as critical with flat belts.
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Require precise alignment
for uniform tension across the section.
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Friction
engagement at the outer pulley surface.
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Frictional engagement between lateral wedge
surfaces of the belt.
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The
Slip may occur.
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Slip is negligible due to wedging action between
the belt and V-groove pulley.
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Compared to v-belts, flat
belts require significantly greater pretension to transmit a particular
torque.
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Require little
pretension.
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Flat belts can be used for long distances, up to 15 m.
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V-belt cannot use for long distance because weight
per unit length of the belt is greater than that of the flat belt. It used
where pulleys were very near to each
other.
V-belt
provides compactness due to the small
distance between the centers of the pulleys.
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Low-velocity ratio.
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High-velocity ratio.
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It can deliver power at high
speeds.
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The centrifugal tension limits the
speed of V-belt between 5m/s to 50m/s.
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Power transmission capacity is low.
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V-belt can
transmit more power for the same coefficient of friction.
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Its efficiency is comparatively lower than the
flat belt.
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It can be used in a filthy atmosphere.
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It cannot
use in a nasty environment; it requires
a casing.
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Not used in the vertical
direction.
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V-belt can run even the belt is vertical.
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🔗Difference between open belt drive and cross belt drive
🔗Difference between Rope drive and Round belt
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