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According to standard, use the
following methods to select CIW-X,
CIW-Y and CIW-Z series Cardan Shaft.
Please consult use for selecting
other product series.
- Universal Joint Shaft are
selected according to the load
features, calculated torques,
bearing life and operating
speed.
- Tha calculated torque is
acquired from Formulas (1), (2)
or (1), (3).
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Table 10
:
Service Factors K |
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Service
Factor Type |
Driven
Equipment |
K |
| Light Shock
Load |
Generators
Centrifugal
Purpose
Ventilators
Wood Handling
Machines
Belt Conveyors
Paper Machines |
1.1 to 1.3 |
|
Medium Shock
Load |
Compressor
(Multi-Cyl.)
Pumps (Multi-
Cyl.)
Small Section
Mills
Continuous Wire
Mills
Conveyor Primary
Drives |
1.3 to 1.8 |
|
Heavy Shock Load |
Marine
Transmission
Transport Roller
Tables
Continuous Tube
Mills
Continuous
Working Roller
Tables
Medium Section
Mills
Compressors
(Single-Cyl.)
Pumps (Single-Cyl.)
Mixers
Presses
Straightening
Machines
Crane Drives
Ball Mills |
2 to 3 |
|
Extra Heavy
Shock Load |
Crane Accessory
Drives
Crushers
Reversing
Working Roller
Tables
Reeling Drives
Scale Breakers
Blooming Stands |
3 to 5 |
|
Extreme Shock
Load |
Feed Roller
Drives
Plate Shears |
6 to 15 |
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- Generally, universal joint
shafts are selected according to
the torque to be transmitted an
required bearing life. They can
also be selected checking their
torque strengths or bearing life
relation to the requirements of
the applied equipment.
- Checking the torsional
strength using Formula
Tc < Tn or Tc < Tf or Tc < Tp
...................... (4)
Where,
TC=Calculate torque, Nm
Tn=Nominal torque, NM (i.e. a
theoretic calculated value under
these pre-determined conditions;
speed of shaft n=30 rpm,
deflected angle B = 3o
, and a bearing life.
Ln=5000 hours under even load,
Tf=Permissible torque according
to the fat strength under
alternating loads, Nm
Tp=Permissible torque according
to the fat strength under
pulsating loads, Nm
Tp=1.45 Tt
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