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Service Factors are a means of classifying
different equipments and applications into various load
classifications. Due to variations in application of equipment, service
factors are used to adjust equipment ratings to accommodate for variable
loading conditions.
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Load
Classification
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Service
Factor
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1. Loads
varying very slightly
eg.Centrifugal
Pumps,Compressors
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1.0
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2. Torque
loading varies during operation of equipment
eg.Turbines,Compressors
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1.5
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3. Torque
loading varies during operation with frequent
start and stop cycles
eg.Reciprocating
machinery
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2.0 |
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4. For shock
loading and substancial torque vibrations
eg.Reciprocating
machinery
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2.5 to 3.0
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5. For special
and critical applications
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Contact |
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Coupling Selection Procedure
The following procedure can be used to select the Euroflex couplings for most applications,
however, for specialised applications, it is recommended that Euroflex be consulted. |
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Calculate
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a) Coupling Torque
(KW/1000 RPM) =
POWER(KW) X 1000 /RPM
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b) Determine an appropriate service
factor from the above table to be used based on the drive and driven
machinery and operating conditions, and then apply the said service
factor to the above rating.
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c) Select a coupling model with
equivalent or higher rating from the coupling data sheets.
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d) Having made
the preliminaly section, check suitability for:
- maximum permissible speed
- maximum bore suits the
shafts to be employed
- axial deflection capability
- torsional stiffness
suitability
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