Table des Matières
Publicité
Highly Flexible Couplings
Rough Estimation of the
Coupling Size by Means of
the Service Factor
For the service factors empirical values were taken
as a basis which generally assess the performance
of input and output combinations in service. Predo-
minant periodic excitation of the plant or starting
and braking of large masses require a design
according to DIN 740/2 or vibration calculations
which can also be ordered from us. Data for
calculations are available, if required.
When selecting the size of a coupling, the service
factor f
of table 5.II depending on the specific load
1
classification symbol of table 5.I must be allowed
for. This service factor is valid for up to 25 starts per
5.I Load classification symbols listed acc. to applications and industries
Blowers, Ventilators
U
Rotary piston blowers T
75 Nm
M
Rotary piston blowers T
750 Nm
H
Rotary piston blowers T
750 Nm
U
Blowers (axial/radial) T
75 Nm
M
Blowers (axial/radial) T
750 Nm
H
Blowers (axial/radial) T
750 Nm
U
Cooling tower fans T
75 Nm
M
Cooling tower fans T
750 Nm
H
Cooling tower fans T
750 Nm
U
Induced draught fansT
75 Nm
M
Induced draught fans T
750 Nm
H
Induced draught fans T
750 Nm
U
Turbo blowers T
75 Nm
M
Turbo blowers T
750 Nm
H
Turbo blowers T
750 Nm
Building machinery
M
Concrete mixers
M
Hoists
M
Road construction machinery
Chemical industry
U
Agitators (liquid material)
M
Agitators (semi-liquid material)
M
Centrifuges (heavy)
U
Centrifuges (light)
M
Cooling drums
M
Drying drums
M
Mixers
Compressors
H
Piston compressors
M
Turbo compressors
Conveyors
M
Apron conveyors
M
Ballast elevators
M
Band pocket conveyors
M
Belt conveyors (bulk material)
H
Belt conveyors (piece goods)
U
Bucket conveyors for flour
M
Chain conveyors
M
Circular conveyors
M
Goods lifts
H
Hoists
H
Inclined hoists
M
Link conveyors
M
Passenger lifts
M
Screw conveyors
M
Steel belt conveyors
M
Trough chain conveyors
M
Hauling winches
Cranes
M
Derricking jib gears
H
Hoisting gears
M
Luffing gears
M
Slewing gears
H
Travelling gears
Dredgers
H
Bucket conveyors
5.II Service factor f
1
Prime mover
Prime mover
Electric motors, Turbines, Hydraulic motors
Piston engines 4 - 6 cylinders
cyclic variation 1 : 100 - 1 : 200
Piston engines 1 - 3 cylinders
cyclic variation to 1 : 100
K4251 DE/EN/FR
ELPEX-B
hour. For up to 120 starts per hour, the service fac-
tor is to be increased by 0.75. For more frequent
starting, please refer to us.
1.
Application of the ELPEX-B coupling
1.1 Type of prime mover; power rating P
speed n
in 1/min
M
1.2 Type of driven machine; power rating P
2.
Load conditions of prime mover and
driven machine
H
Bucket wheels
H
Cutter heads
M
Manoeuvring winches
M
Pumps
M
Slewing gears
H
Travelling gears (caterpillar)
M
Travelling gears (rails)
Food industry machinery
U
Bottling and container filling machines
M
Cane crushers
M
Cane knives
M
Cane mills
H
Kneading machines
M
Mash tubs, crystallizers
U
Packaging machines
M
Sugar beet cutters
M
Sugar beet washing machines
Generators, transformers
H
Frequency transformers
H
Generators
H
Welding generators
Laundries
M
Tumblers
M
Washing machines
Metal rolling mills
H
Billet shears
M
Chain transfers
H
Cold rolling mills
H
Continuous casting plants
M
Cooling beds
H
Cropping shears
M
Cross transfers
H
Descaling machines
H
Heavy and medium plate mills
H
Ingot and blooming mills
H
Ingot handling machinery
H
Ingot pushers
H
Manipulators
H
Plate shears
M
Plate tilters
M
Roller adjustment drives
M
Roller straighteners
H
Roller tables (heavy)
M
Roller tables (light)
H
Sheet mills
M
Trimming shears
H
Tube welding machines
M
Winding machines (strip and wire)
M
Wire drawing benches
Metal working machines
U
Countershafts, line shafts
H
Forging presses
H
Hammers
U
Machine tools, auxiliary drives
M
Machine tools, main drives
H
Metal planing machines
H
Plate straightening machines
H
Presses
Load symbol of driven machine
U
M
1
1.75
1.25
2
1.50
2.25
2.1 Mode of operation: Uniform or non-uniform;
any occurring shocks. Mass moments of
inertia J of prime mover and driven machine
can increase the torque to be transmitted due
to service conditions.
in kW,
2.2 Number of starts per hour
M
3.
Ambient conditions
in kW
2
3.1 Ambient temperature in _C:
-50 C
T
+50 C
u
3.2 Ambient medium
H
Punch presses
M
Shears
M
Sheet metal bending machines
Oil industry
M
Pipeline pumps
H
Rotary drilling equipment
Paper machines
H
Calenders
H
Couches
H
Drying cylinders
H
Glazing cylinders
H
Pulpers
H
Pulp grinders
H
Suction rolls
H
Suction presses
H
Wet presses
H
Willows
Plastic industry machinery
M
Calenders
M
Crushers
M
Extruders
M
Mixers
Pumps
U
Centrifugal pumps (light liquids)
M
Centrifugal pumps (viscous liquids)
H
Piston pumps
H
Plunger pumps
H
Pressure pumps
Rubber machinery
M
Calenders
H
Extruders
M
Mixers
H
Pug mills
H
Rolling mills
Stone and clay working machines
H
Ball mills
H
Beater mills
H
Breakers
H
Brick presses
H
Hammer mills
H
Rotary kilns
H
Tube mills
Textile machines
M
Batchers
M
Looms
M
Printing and dyeing machines
M
Tanning vats
M
Willows
Water treatment
M
Aerators
U
Screw pumps
Wood working machines
H
Barkers
M
Planing machines
H
Saw frames
U
Wood working machines
U = Uniform load
M = Medium shock load
H = Heavy shock load
H
Listed load classification symbols may
2.50
be modified after giving exact details of
operating conditions.
2.75
3
5
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Table des Matières
