For Gear Unit
selection Prime mover's maximum power rating can be taken
as base for determining the actual load. The Gear
Selection is made by comparing actual transmitted loads
with catalogue ratings. It is important to realise that
are based on standard set of load conditions,
which invariably change for different conditions.
Therefore service factor must be used to calculate a
theoratical transmitted load or equivalent load, before
comparing with catalogue rating. For calculating the same,
apply the formula:- Equivalent Load =
Actual Load x Service Factor
These
are some Suggestions to improve the performance of your
worm speed reducers, worm gear boxes or worm geared
drives. However, please note that these are suggestions
based on standard set of conditions. If these are
different from your results, please rely on your results
and inform us.
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Worm Gear Boxes in Stock
Mechanical
Service Factor |
Prime
Mover |
Duration
of Service
Hours/Day |
Uniform
Loads
|
Moderate
Shocks
|
Heavy
Shocks
|
Electric
Motor,Steam
Engine,
or Hydraulic
Motor. |
Under
3 3 to
10
Over
10
|
0.80 1.00
1.25
|
1.00 1.25
1.50
|
1.50 1.75
2.00
|
Single
Cylinder
Internal
Combustion
Engine |
Under
3 3 to
10
Over
10
|
1.25 1.50
1.75
|
1.50 1.75
2.00
|
2.00 2.25
2.50
|
Thermal
Service Factor
(Ambient
Temperature)
Temp
in °C Factor
|
10 0.87
|
20 1.00
|
30 1.16
|
40 1.35
|
50 1.62
|
60 1.97
|
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