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P O W E R T R A N S M I S S I O N P R O D U C T S
G E N E R A L I N F O R M A T I O N
125
G E N E R A L I N F O R M A T I O N
2 0 1 1
B
e lt
S
t o r a g e
Source: RMA IP-3-4, 2007
J
o i n e d
V-
b e lt s
,
S
y n c h r o n ou s
B
e lt s
,
V- R
i b b e d
B
e lt s
Like V-belts, these belts may be stored on pins or saddles with
precautions taken to avoid distortion. However, belts of these
types, up to approximately 120 inches (3000 mm), are normally
shipped in “nested” configuration and it is recommended that
the belts be stored in this manner as well. Nests are formed by
laying a belt on its side on a flat surface and placing as many belts
inside the first belt as possible without undue force. When the
nests are tight and are stacked with each rotated 180° from the
one below, they may be stacked without damage.
Belts of these types over approximately 120 inches (3000mm),
may be “rolled up” and tied for shipment. These rolls may be
stacked for easy storage. Care should be taken to avoid small
radii, which could damage the belts.
V
a r i a b l e
S
p e e d
B
e lt s
Variable Speed belts are more sensitive to distortion than most
other belts and it is not recommended that these belts be
hung from pins or racks. They should be stored on shelves. A
common method for packaging for shipment is the use of a
“sleeve” slipped over the belt. Variable Speed belts should be
stored in these sleeves and may conveniently be stacked on
shelves with the aid of the sleeves.
M
e t hod s
o f
S
t o r a g e
( C
on t
. )
The quality of belts has not been found to change significantly
within seven years of proper storage at temperatures less than
85°F (30°C) and relative humidity below 70 percent. Also there
must be no exposure to direct sunlight.
If the storage temperature is increased beyond 85°F (30°C), then
the storage limit for normal service expectancy should be reduced.
From a base of seven years at 85°F (30°C), the storage limit
should be reduced by one-half for each 15°F (8°C) increase in
temperature. Under no circumstances should belts be exposed to
storage temperatures above 115°F (46°C).
With a significant increase in humidity, it is possible for fungus
or mildew to form on stored belts. This does not appear to cause
serious belt damage, but should be avoided if possible.
Equipment using belts is sometimes stored for prolonged periods
(six months or more) before it is put in service or during other
periods when it is idle. It is recommended that the tension of
the belts be relaxed during such period and that equipment stor-
age conditions should be consistent with the guidelines for belt
storage. If this is not possible, the belts should be removed and
stored separately.
E
f f e c t s
o f
S
t o r a g e