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SUCO Transmission Technology 2020

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21
SUCO
Transmission Technology
Electromagnetic Clutches and Brakes
Customized Solutions
Centrifugal Clutches and Brakes
2
1
Welcome to SUCO
What you'll see on the following pages:
SUCO
PRESSOSTATS MÉCANIQUES
TRANSMETTEURS DE PRESSION SUCO
SUCO – A transmission technology specialist active on the global stage
SUCO – A success story
SUCO – Tradition and innovation
SUCO worldwide – our international sales network Page 40
Page 3
Page 4
Page 6
SUCO
CENTRIFUGAL CLUTCHES AND BRAKES
Technical explanations
F-Type – Self-increasing clutch
S-Type – Pin-guided clutch with three fl yweights
W-Type – Pin-guided clutch with two fl yweights
P-Type – Asymmetric pivot clutch
Key to model codes
From Page 8
Page 10
Page 16
Page 18
Page 20
Page 22
Page 23
ELECTROMAGNETIC CLUTCHES AND BRAKES
Technical explanations
E-Type – Electromagnetic clutch without bearing
G-Type – Electromagnetic clutch with bearing
B-Type – Electromagnetic brake
Key to model codes
Diff erent solutions, driven-side
From Page 24
Page 26
Page 28
Page 29
Page 30
Page 31
Page 32
TRANSMETTEURS DE PRESSION SUCO
CUSTOMIZED SOLUTIONS
Examples of diff erent solutions
From Page 34
Page 37
Product Catalogue Transmission Technology
3. Edition, March 2019, © Copyright on contents and design.
Article-number: 1-0-00-999-119 Reproduction only with prior permission of the publisher.
4
3
SUCO Robert Scheuele GmbH & Co. KG
A transmission technology specialist setting standards on the global stage
SUCO Robert Scheuffele GmbH & Co. KG
was founded in 1938 and has established
itself across the globe under the trade
name SUCO.
The two main product groups, pressure
monitoring (mechanical pressure switches,
vacuum switches, electronic pressure
switches and pressure transmitters) and
transmission technology (centrifugal
clutches and brakes, electromagnetic
clutches and brakes), are developed,
designed and manufactured at the Bietig-
heim-Bissingen site, approximately 20 km
north of Stuttgart in Germany.
Peter Stabel, Director Marcell Kempf, Director
Highest quality in all areas
The development and continual expansion
of the company premises are indications of
a thriving company.
Work on global presence has been rigorous,
and today SUCO is actively represented by
distribution companies in France (SUCO VSE
France – a 50/50 joint venture with VSE
Volumentechnik GmbH) and in the USA
(SUCO Technologies Inc.), by associate
company ESI Technology Ltd in Wrexham,
North Wales, and by more than 60 mostly
exclusive sales partners in over 50 countries.
Certified to DIN EN ISO 9001:2015, SUCO
has retained its consistently high quality
standards for many years, something sub-
stantiated by numerous audits by repu-
table companies from a broad diversity of
industry sectors.
This worldwide acknowledged product
quality is guaranteed with CNC-controlled
machining centres, automated assembly
machines, sophisticated test systems and
the latest in measuring equipment. Out-
standing products, high level of customer
service and excellent price/performance ra-
tio guarantee SUCO's good market positio-
ning within the product sectors mentioned.
A sophisticated level of personnel qualifica-
tion, a high identifaction of the employees
with the company, process-oriented struc-
tures and efficient organisation are guaran-
tees for continued company growth into
the future.
Observance of ethical principles and com-
prehensive environmental awareness is
standard at SUCO, and guarantees high
class business relationships on the highest
level for our customers all over the world.
This catalogue does not only give a clear
and structured overview of our capabilities
all around our comprehensive range of
transmission technology products but also
offers detailed technical explanations sup-
porting you in many challenges occurring
in your specific applications.
Please trust in a company with 80
years of experience.
5
SUCO – A success story
From a mechanical workshop to an industrial company operating on the global stage
1938
1945
1946
1953
1956
1960
1997
1998
1999
2001
2002
2004
2005
Robert Scheuff ele starts up
a mechanic's workshop
Start of the partnership between
Robert Scheuff ele and Georg Fuhrmann
Production start of centrifugal
clutches and brakes
Move into the new premises
in Bietigheim-Bissingen,
Keplerstrasse
(still headquarter today)
Production start of
mechanical pressure switches
for the automotive industry
Registration of trade name SUCO
with worldwide trademark protection
First DIN ISO 9001 company certi cation
Start of market penetration in Asia
by setting up a company pool
Broadening of product expertise
to electronic pressure monitoring
Start of the „fully automatic
pressure switch adjusting“
development project with the
Fraunhofer Institute
Founding of subsidiary
SUCO VSE France
Certifi cation to
DIN ISO 9001:2000
Penetration of the
markets in South
America and Eastern
Europe
New company name:
SUCO Robert Scheuff ele
GmbH & Co. KG
Development of the
SUCO zero clutch
Development start of fully automatic
assembly systems for pressure switch
modules
Aerial shot of premises,
Bietigheim-Bissingen
Administration building,
Bietigheim-Bissingen
A view into production
* 16.10.1909 † 20.02.1966 * 15.01.1912 † 04.02.1982
1938 19891970
4
6
2006 2007
2009
2010
2011
2013
2014
1993
1988
1987
1984
1980
1979
1969
Production start of electromagnetic
clutches and brakes
Set-up of a pan-European sales network
Further development of SUCO
pressure switches especially
for hydraulic and pneumatic
applications
Strategic alignment
to the industry
Development of the
hex 24 pressure switch
series for broad industrial
applications
Development of the hex 27
pressure switch series for broad
industrial applications
Development of
pressure dampers for
ABS brake systems in
the automotive industry
Start of sales in the US
Broadening of the product range
to include custom pre-wired
pressure switches
Development and production start of
descenders with centrifugal technology
Enhancement of the laboratory test
facility for simulating several million test
cycles under diff erent test conditions
Development of the world‘s smallest
pressure switch with adjustable
switching point to 400 bar (patented) Across-the-board use of
enhanced automatic
pressure switch adjusters;
Development of a
transmitter series based
on SoS technology
Acquisition of
ESI Technology Ltd. (UK)
Founding of subsidiary
SUCO Technologies Inc., USA
Development of the
SUCO thermal brake
75-year company
anniversary celebrations
Development of additional
intelligent functions integrated
in mechanical pressure
switches
SUCO VSE France,
Le Mans, France
SUCO Technologies
Boca Raton, USA
ESI Technology,
Wrexham, UK
Aerial shot of premises,
Bietigheim-Bissingen
1999 2007 2009 2018
5
Certifi cation
to DIN ISO
9001:2015
2017
7
6
Tradition and Innovation
The preservation of proven traditions and continuous e orts in
innovation enable visions to become successful reality
Design and development of new products using the latest CAD
tools.
The best quality products are possible due to the best quality
raw materials.
Products are subjected to comprehensive testing and
measurements to simulate realistic ambient conditions
and loads.
Computer-aided test bench for engagement speed.
8
7
Ready-made clutches are waiting for their delivery to the
customers.
Experienced employees with long staff membership and
professional competence guarantee high quality.
Ultra-modern production plant with integrated, fully-
automated component handling enables to manufacture
rst-class clutches and brakes.
From here our products are dispatched to customers all over
the world.
8
Centrifugal clutches and brakes
Centrifugal clutches and brakes
10
General technical information on
centrifugal clutches and brakes
How do centrifugal clutches or
brakes work?
Centrifugal clutches and brakes use centri-
fugal forces to transmit power (clutch) or
to limit speed (brake).
As the brakes are based on a physical
principle, centrifugal clutches or brakes
do not require any additional external
power supply, which makes them a
perfect solution for safety applications.
Centrifugal clutches and brakes consist
of a driving shaft . Around the driving
shaft, there are flyweights mounted,
which are kept on the shaft by springs
. On the outer side of the flyweights
there are friction pads .
1. When the driving shaft starts turning, the
yweights and the friction pads are kept to-
gether by the retaining forces of the springs.
2. At a predefi ned speed (engagement
speed), the centrifugal forces overcome
the retaining forces of the springs and the
friction pads do contact the outer drum
.
3. The friction pads begin to transmit
power to the drum, but will show a slip-
ping eff ect until the speed is further
increased to the operating speed, which
means a non-slip torque transmission.
Based on long experience and know-
how, SUCO designs the clutches with
a safety factor, which guarantees that
the transmissible torque at the opera-
ting speed is higher than necessary. This
ensures a slip free application and thus,
reduces wear and service requirements.
Diff erences between a centrifugal
clutch and a centrifugal brake:
The main diff erence between a centrifu-
gal clutch and a centrifugal brake is in the
drum:
At a centrifugal clutch the drum is not
xed and will begin to turn when the
engagement speed / operating speed is
reached.
At a centrifugal brake the outer drum is
x and cannot turn. This causes a braking
force when the friction pads touch the
drum.
When designing and operating centri-
fugal brakes, there must be a special
focus on braking time and maximum heat.
Please refer to page 13 for further informa-
tion.
11
Typical applications for centrifugal
clutches:
Centrifugal clutches are mainly used as a
start up clutch. A centrifugal clutch allows
the usage of a smaller motor, because
the motor can start loadfree until it has
reached its optimum operating speed, at
which the load is smoothly added by the
centrifugal clutch.
Typical applications for centrifugal
brakes:
The main application for centrifugal brakes
is limiting the speed of e.g.
descending weight or persons
industrial applications
(e. g. safety- and fire doors)
leisure applications
(e. g. Go Kart to a safe level)
What are the key criteria when
selecting and designing a
centrifugal clutch / brake:
Performance data:
The power which needs to be
transmitted (kW)
Engagement speed [rpm]
Operating speed [rpm]
The max. allowable size
By knowing the max. size and power,
the most suitable clutch model can
be chosen, as all models do have a
di erent performance factor
Additional required information for
centrifugal brakes:
Load in kg
Max. braking time and braking frequency
Design and dimensions:
Input design:
Shaft diameter
Output design:
There are different output designs
possible. So we need to know if you use
Only core version
Flex coupling
Belt Pulley design
Ball bearings or not
Please refer to pages 14-15 for further
information.
Construction of a centrifugal clutch /brake
5
3
1
4
2
= Driving shaft
= Flyweights
= Tension spring
= Friction pads
= Outer housing
General technical information on
centrifugal clutches and brakes
12
Selection matrix of SUCO centrifugal clutches
Criteria
F-Type
S-Type
W-Type
P-Type
Page 16 18 20 22
Compact design
Noisefree operation
Easy replaceable parts
Performance factor 2.5 1.5 1.0 1.75 - 1.25
Calculating the torque:
M = torque [Nm]
n = speed of rotation [rpm]
P = power [kW or hp]
M = 9550 · [kW]
M = 7121 · [hp]
P
n
P
n
Performance factor
The performance factor is a measure
to compare the power transmission of
clutches. The W-Type clutch has a per-
formance factor of 1.0. The F-Type at the
same size and the same flyweight mass
can transmit 2.5x more torque.
Clutch slipping Clutch engaged
Torque transmission
100
80
60
40
20
0
Speed of rotation [rpm]
nE = engagement speed, nB = operating speed
Torque [Nm]
Clutch
Motor
Example of engagement behaviour
nE nB
Clutch not engaged
900
850
800
950
1000
1050
1100
1150
1200
1250
1300
1350
1400
1450
1500
1550
1600
1650
1700
1750
1800
1850
1900
1950
2000
Engagement speed:
The engagement speed of centrifugal
clutches indicates the speed at which
the centrifugal forces overcome the
retaining forces of the spring and the
friction pads touch the outer drum.
From the first engagement until the
operating speed the friction pads will
slip, what will cause wear of the pads.
To minimise wear of the friction pads,
the target is to pass quickly through the
engagement speed band to the opera-
ting speed.
General tolerance for engagement
speed ± 100 rpm.
Operating speed:
At the operating speed the friction pads
are in full contact with the drum and
transfer the torque without slipping.
Variances in the motor speed must be
considered when determining the ope-
rating speed. Therefore SUCO uses a
safety factor which ensures a non-slip-
ping application.
All SUCO clutches are dry-operated.
13
Friction produces heat
Centrifugal brakes convert mechanical
energy into heat, which is generated
between the linings and the brake drum,
and mostly heats up the latter.
The temperature distribution illustrated
above on a sectioned brake drum clearly
shows the higher heating of the drum in
the region over the flyweights.
The amount of generated heat depends
on various factors:
Transmitted braking torque
Brake speed
Duration of the braking operation
Size of the friction surface
The mass of the brake drum that has
to be heated
Over the braking time the temperature
curve rises very steeply at the start and
then gradually approaches a maximum.
The temperature at the friction surface
(T2) is substantially higher than the tem-
perature (T1) at the outer surface of the
brake drum.
Nevertheless, the brake drum can become
very hot during operation and is a source
of danger. The authority responsible for
operation of the machine is solely respon-
sible for ensuring that suitable protective
measures are taken.
The maximum temperature must not
exceed the manufacturer's maximum
permitted temperature for the friction
Centrifugal brakes:
Standard centrifugal brakes are used to
limit speed – they cannot bring a system
to standstill. The basic principle is to
keep a balance between the load of the
driving side and the braking torque.
During the operation there is a constant
friction which generates heat.
material, otherwise the linings may
be damaged. This can lead to a loss of
eff ectiveness of the brake and, in the worst
case, to destruction of the brake.
To prevent this, detailed data about the
application is required when designing
centrifugal brakes:
Operating speed of the system to
be braked
Engagement speed of the
centrifugal brake
Braking torque required at the
braking speed
Changes in the braking torque
Braking times and frequency
Field of application
Centrifugal brakes are speed limiting
devices and are finding increased use in
lowering equipment. In such cases, the
speed of lowering corresponds to the
balanced condition between the speed
governed by load torque and the speed
governed by braking torque.
Different solutions,
driven-side
14
Model K
Model G
Core version -K-
This version without a drum is supplied when
a clutch or brake drum already exists in the
customer's set up, or a suitable component for
this purpose is available on the output side.
The drum must be accurately centred
and securely mounted.
For higher torque transmission a clutch
can be equipped with several rows of
yweights.
The shaft diameter can be varied and
tapered mountings are possible.
Core version with drum -G-
This version can be used to connect two shaft
ends.
The installation must have the lowest
possible misalignment in both radial and
angular directions.
Excessive misalignment can result in
rapid wear of the linings or
complete failure of the clutch.
To accommodate the variety of transmission requirements, SUCO off ers a wide and fl exible product
range. Both axial and radial drives can be supplied.
All centrifugal brakes and clutches must only be used in conjunction with a suitable drum
or belt pulley. The operation of a clutch or brake without a suitable drum or belt pulley is
forbidden. Non-compliance can result in injury to persons.
Figure 1 Figure 2
Figure 3
15
Model R
Model E
Model A
Unit version -E-
Where it is not practical to align both shaft
ends or one shaft end and the drum, a bearing
can be used between hub and drum.
As shown in Figure 4, the output drive can be
directed through a tolerance ring on to which
a belt pulley, a timing-belt pulley, or a moun-
ting fl ange can be pressed.
Figure 5 shows a go kart clutch with a drive
ange for a chain sprocket.
Unit version with  exible coupling -A-
The easiest way of compensating radial and
angular misalignments between two shafts is
to use a exible shaft coupling.
The fl exible coupling can be installed and
located either radially or axially.
Belt-pulley version -R-
Where torque is transmitted through a V-Belt,
the belt groove(s) can be machined in the
drum. Single, duplex or multiple groove pulleys
can be produced in this way.
Depending on the clutch size, eff ective pulley
diameters from ca. 80 to 270 mm can be incor-
porated.
Common groove forms are: SPA, SPB, SPZ,
and Poly-V according to DIN/EN.
Figure 7 to 10 show diff erent belt-drive
clutch versions.
The clutch shown in Figure 9 with a split pul-
ley allows elimination of a tensioning pul-
ley. The V-Belt is tensioned by changing the
spacer shims between the two pulley halves. Figure 9 Figure 10
Figure 4 Figure 5
Figure 6
Figure 7 Figure 8
Self-increasing clutch
F-Type
16
High efficiency with a self-increasing effect
Performance factor of 2.5
Compact design
Easy to service
Construction and mode of operation
12
3
4
5
3
1
5
4
2
= Driving hub
= Flyweights
= Tension spring
= Friction pads
= Outer drum
Performance data and dimensions
F-Type
17
Type Number
D mm]
B mm] 1
d max. mm]
standard bore
diameter
d mm] (inch) 2
Standard rotational speed
low normal high
M at nE 750 and
nB 1500 Nm]
recommended
motor power
kW] 3
M at nE 1250 and
nB 2500 Nm]
recommended
motor power
kW] 3
M at nE 1500 and
nB 3000 Nm]
recommended
motor power
kW] 3
F01 50 10 14 12 1.3 0.17 2 0.3
F02 60 15 18 15 (5/8) 4 0.5 5 0.8
F03 70 15 22 15; 20 (7/8) 70.9 10 1.6
F04 80 15 28 14 - 25 (3/4; 7/8) 4 0.3 11 1.4 16 2.5
F05 90 20 35 18; 20; 25 (3/4; 1) 10 0.8 26 3.4 40 6.3
F06 100 20 35 20; 24; 28 (3/4; 1) 16 1.3 42 5.5 60 9.4
F07 110 20 40 28; 35; 40 (1) 25 2.0 70 9.0 100 15.7
F08 125 20 50 25; 38; 49 (3/4; 1) 40 3.2 120 15.7 180 28.3
F09 138 25 55 30; 38; 48 (1) 90 7.0 240 31.0 320 50.0
F10 150 25 60 38; 48; 49 125 10.0 340 44.5 470 74.0
F11 165 30 65 42; 50; 55 (1 7/16) 220 17.2 620 81.0 870 136.0
F12 180 40 75 50; 60 (2 3/8) 460 36.0 1200 157.0 1700 267.0
F13 200 30 75 35; 55; 65 (2 3/8) 520 41.0 1300 170.0 1850 290.0
1) The transmitted power increases as the width B is increased.
2) Tapered bores and special dimensions can be manufactured on request.
3) Motor power is calculated using a safety factor of 2.
Final selection of the clutch should be accomplished by SUCO!
d = bore dia.
D = inside dia. of drum
B = yweight width
d max. = max. bore dia.
M = torque
nE = engagement speed
nB = operating speed
B
ø D
ø d
direction of rotation
self-increasing effect
centrifugal
force
effective
centrifugal
force
18
Pin-guided clutch with
three flyweights
S-Type
Low noise level by guided pins
Performance factor of 1.5
Compact design
Construction and mode of operation
1
2
3
6
4
5
3
1
5
4
2
= Shaft
= Flyweights
= Cylindrical pin
= Tension spring
= Lining
= Clutch drum / Cover disc
19
Performance data and dimensions
S-Type
Type Number
D mm]
B mm] 1
d max. mm]
standard bore
diameter
d mm] (inch) 2
Standard rotational speed
low normal high
M at nE 750 and
nB 1500 Nm]
recommended
motor power
kW] 3
M at nE 1250 and
nB 2500 Nm]
recommended
motor power
kW] 3
M at nE 1500 and
nB 3000 Nm]
recommended
motor power
kW] 3
S04 80 25 24 15 (3/4; 7/8) 4.3 0.3 12 1.6 17.5 2.8
S05 90 25 30 14; 30 (3/4; 1) 7.5 0.6 212 2.8 31 4.9
S06 100 25 24 20; 24; 28 (3/4; 7/8) 11 0.8 30 4.0 43 7.0
S07 110 25 30 28; 30 (1) 15 1.2 45 6.0 64 10.0
S08 125 25 40 20; 30 (1; 1/2) 30 2.4 85 11.0 124 20.0
S09 138 25 30 17; 30 (1; 1 1/8) 40 3.0 112 15.0 160 25.0
S10 150 35 40 38; (1 1/8) 78 6.0 216 28.0 310 49.0
1) The transmitted power increases as the width B is increased.
2) Tapered bores and special dimensions can be manufactured on request.
3) Motor power is calculated using a safety factor of 2.
Final selection of the clutch should be accomplished by SUCO!
d = bore dia.
D = inside dia. of drum
B = yweight width
d max. = max. bore dia.
M = torque
nE = engagement speed
nB = operating speed
B
ø D
ø d
20
Low noise level by guided pins
Easy to service
Performance factor 1.0
W-Type
Construction and mode of operation
1
23
4
5
3
4
1
5
= Hub
= Flyweights
= Cylindrical pin
= Tension spring
= Lining
= Circlip
Pin-guided clutch with
two flyweights
6
2
6
Pin-guided clutch with
two flyweights
21
Performance data and dimensions
W-Type
Type Number
D mm]
B mm] 1
d max. mm]
standard bore
diameter
d mm] (inch) 2
Standard rotational speed
low normal high
M at nE 750 and
nB 1500 Nm]
recommended
motor power
kW] 3
M at nE 1250 and
nB 2500 Nm]
recommended
motor power
kW] 3
M at nE 1500 and
nB 3000 Nm]
recommended
motor power
kW] 3
W04 80 15 15 15 1.7 0.14 4.6 0.6 6.6 1.0
W05 90 20 25 14 (5/8) 3.7 0.3 10.3 1.4 14.8 2.3
W06 100 20 30 30 5.7 0.45 16.0 2.0 23.0 3.6
W07 110 20 40 8.6 0.7 24.0 3.2 34.5 5.5
W08 125 20 40 20; 30 (1 1/2) 14.0 1.0 38.5 5.0 55 8.5
W09 138 25 55 27.0 2.2 75.0 9.8 110 17
W10 150 25 60 38 (1 1/8) 36.5 3.0 102 13 145 23
1) The transmitted power increases as the width B is increased.
2) Tapered bores and special dimensions can be manufactured on request.
3) Motor power is calculated using a safety factor of 2.
Final selection of the clutch should be accomplished by SUCO!
d = bore dia.
D = inside dia. of drum
B = yweight width
d max. = max. bore dia.
M = torque
nE = engagement speed
nB = operating speed
B
ø D
ø d
22
Extremely narrow design
Lowest noise level of SUCO clutches
Performance factor between 1.75 and 1.25
(depending on direction of rotation)
Asymmetric pivot clutch
P-Type
Construction and mode of operation
1
3
4
5
2
3
3
5
1
2
4
= Flyweight
= Tension spring
= Lining
= Clutch drum / Cover disc
= Shoe pivot
= Flange
6
Performance data and dimensions
P-Type
Type Number
D mm]
B mm]1
Standard rotational speed
low high
M at nE 750 and
nB 1500 Nm]
recommended
motor power
kW] 2
M at nE 1500 and
nB 3000 Nm]
recommended
motor power
kW] 2
P11 187 30 175 13 460 60
P12 193 30 180 14 500 70
1) The transmitted power increases as the width B is increased.
2) Motor power is calculated using a safety factor of 2.
Final selection of the clutch should be accomplished by SUCO!
M = torque
nE = engagement speed
nB = operating speed
D = inside dia. of drum
B = yweight width
B
ø D
Key to model codes
Type designation:
F Type
S Type
W Type
P Type
Size:
See table
"Performance data
and dimensions" on
pages 17, 19, 21, 23
Models driven side:
K – Core
G Core with drum
E Unit version with bearing
R Belt pulley version
A Axial output with flexible
coupling
S Customer special
Quantity
(depending on model driven
side)
K, G, E, A, S: Number of
rows of flyweights
R: Number of grooves
Bore, Input Side,
1 Cylindrical hole
2 Tapered hole (core side)
3 Tapered hole (bearing side)
4 Gear teeth
5 – Thread
6 – Flange
9 Special form
F08 E 1 1 XXXX
Consecutive number
23
Other sizes are available on request.
Electromagnetic clutches and brakes
Electromagnetic clutches and brakes
24
26
General technical information on
electromagnetic clutches and brakes
How do electromagnetic clutches
or brakes work?
The working principles of electromagnetic
clutches and brakes are very similar.
Electromagnetic clutches:
The stator body contains the fi eld coil
, which is a copper coil cast in synthetic
resin. The clutch is activated by applying a
direct current to the fi eld coil. This creates a
magnetic fi eld, which electromagnetically
attracts the armature plate towards the
input drive hub with its friction lining
, and so allows torque to be transmitted
from the input side to the output.
The axially-located output drive hub
separates from the input side when
the current is cut off . A return spring
ensures that the armature plate separates
from the input hub.
Electromagnetic brakes:
The stator body contains the fi eld coil ,
which is a copper coil cast in synthetic resin.
When current is applied a magnetic fi eld is
created, which attracts the armature plate
towards the friction lining , and so
transmits a braking torque to the output
hub .
When the current is off, the return spring
pulls the armature plate back to its original
position.
SUCO is your perfect partner when you
require a specifically fitted design for an
electromagnetic clutch or brake, which
matches perfectly with your application
and design needs.
As SUCO manufactures electromagnetic
as well as centrifugal clutches and brakes,
we can even combine the two principles to
provide you with a solution which uses the
advantages of both technologies.
You will find these special solutions
starting from page 39.
Typical applications
Among many other applications, SUCO
electromagnetic clutches and brakes are
used in construction machines, agricultu-
ral machinery, machine tools, pumps and
compressors, centrifuges, belt conveyors
and cleaning machines.
27
Technical explanations and
important installation notes:
When SUCO electromagnetic clutches
and brakes are cor rectly selected, they
are trouble-free, re quire no maintenance,
and are extremely reliable.
SUCO clutches are dry-running clutches.
To ensure correct operation, grease and
oil must be kept away from the clutches'
and brakes' friction surfaces.
Electromagnetic clutches and brakes re-
quire a DC power supply. They normally
operate on a 24 VDC supply, but can also
be supplied for other voltages (6, 12, 48
and 190 VDC). As standard the power
sup ply is via a 2-core cable 0.4 m long.
All SUCO clutches and brakes are normal-
ly open.
Depending on the size of a clutch or a
bra ke, the installation must provide for
an air gap of between 0.2 and 0.5 mm
between the drive hub and the arma-
ture plate. The purpose of this air gap is
to ensure com plete separation of the in-
put and output drives when no current is
applied.
SUCO electromagnetic clutches and
brakes can be installed on fl anges or
shafts. Flange-mounted versions require
a suitable fl ange surface. The mag-
net component of the shaft-mounted
models must be secured against rotation,
the torque support must not be rigidly
fi x e d .
If a SUCO output drive is not used, it
is important to ensure that there are
clearance holes to accommodate the
rivet heads when installing the armature
plate.
The armature plate is centred by the
screws which hold the return spring to
the output component. When the arma-
ture plate is installed, it must remain free
to move axially against the return spring.
The standard form of output is an axial
drive with a bore and keyway, which
passes through a flange. On the sub-
sequent pages also other variants are
shown.
Construction and mode of operation of a electromagnetic clutch /brake
5
6
= Stator body
= Field coil
= Friction lining
= Armature plate
= Return spring
= Hub
= Input drive hub
14
3
7
2
2
3
4
5
6
1
Electromagnetic clutch Electromagnetic brake
Electromagnetic clutch
without bearing
E-Type
Performance data and dimensions
28
Size E02 E03 E04 E05 E06 E07 E08 E09
Torque [Nm]
For reference purposes1) 1.0 4.5 8.0 20.0 38.0 80.0 150.0 280.0
Speed of rotation max. [rpm] 10.000 8.000 6.000 5.000 4.000 3.000 3.000 2.000
Power [W] T = 20° C 912 20 23 32 40 55 72
d max. [mm]2) 10 20 25 30 40 50 70 80
D [mm] 60 80 100 125 150 190 230 290
L1 [mm] 26.5 28.0 31.0 36.0 40.5 46.5 55.4 64.0
L2 [mm] 38.5 43.0 51.0 61.0 70.5 84.5 103.0 119. 0
B [mm] 52 72 90 112 137 175 215 270
F [mm] 42 63 80 100 125 160 200 250
H [mm] 29 46 60 76 95 120 158 210
Construction and mode of operation
3
1
5
4
2
6
1) Depending on design of installation, operating and ambient conditions
2) Keyway to DIN 6885/1
= Stator body
= Connection cable
= Input drive hub
= Armature plate with
= Return spring
= Output drive hub
3
1
5
4
2
Model A
Clutch with input
drive hub
Basic version without
output drive hub.
Connection to output
side by screws.
Model C
Clutch with input &
output drive hub
Basic version with
axial output drive
(shaft - shaft).
When assembling, the stator must be accurately centred on the input drive hub, otherwise the hub
may rub on the stator body and cause damage to the clutch. For further installation advises and
technical details, please refer to page 28 .
Electromagnetic clutch
with bearing
Performance data and dimensions
G-Type
29
Size G03 G04 G05 G06 G07 G08 G09
Torque [Nm]
For reference purposes1) 4.5 8.0 20.0 38.0 80.0 150.0 280.0
Speed of rotation max. [rpm] 8.000 6.000 5.000 4.000 3.000 3.000 2.000
Power [W] T = 20° C 12 20 23 32 40 55 72
d max. [mm]2) 20 25 30 40 50 70 80
D [mm] 80 100 125 150 190 230 290
L1 [mm] 41.0 45.0 52.0 56.5 67.0 75.4 90.0
L2 [mm] 68.0 72.5 92.0 102.5 112.0 130.5 153.0
L3 [mm] 56.0 65.0 77.0 86.5 105.0 123.4 145.0
B [mm] 72 90 112 137 175 215 270
F [mm] 63 80 100 125 160 200 250
H [mm] 46 60 76 95 120 158 210
Construction and mode of operation
3
1
5
4
2
6
1) Depending on design of installation, operating and ambient conditions
2) Keyway to DIN 6885/1
= Stator body
= Connection cable
= Input drive hub
= Armature plate with
= Return spring
= Output drive hub
3
1
5
4
2
Model A
Clutch with input
drive hub
Basic version without output
drive hub. Connection to output
side by screws.
Clutch with input and output
drive hub
Basic version with axial output
drive (mounted on one shaft).
Output drive hub with bearings.
Clutch with input &
output drive hub
Basic version with axial output
drive (shaft - shaft).
Model CModel D
Due to the containing bearing, the stator body does not have to be centred on the input drive.
For further installation advises and technical details, please refer to page 28 .
Electromagnetic brakes
B-Type
30
Performance data and dimensions
Construction and mode of operation
3
1
5
4
2
6
1) Depending on design of installation, operating and ambient conditions
2) Keyway to DIN 6885/1
= Stator body
= Connection cable
= Friction lining
= Armature plate with
= Return spring
= Output drive hub
1
5
4
2
3
Model A
Brake without hub
Basic version without drive hub.
Connection to output side by screws.
Brake with internal hub
Basic version with axial output
drive. Internal hub.
Brake with external hub
Basic version with axial output
drive. External hub.
Model BModel C
Size B02 B03 B04 B05 B06 B07 B08 B09
Torque [Nm]
For reference purposes1) 1.0 4.5 8.0 20.0 38.0 80.0 150.0 280.0
Speed of rotation max. [rpm] 10.000 8.000 6.000 5.000 4.000 3.000 3.000 2.000
Power [W] T = 20° C 912 20 23 32 40 55 72
d max. [mm]2) 817 20 30 35 42 50 75
D [mm] 60 80 100 125 150 190 230 290
L1 [mm] 21.0 22.0 24.5 28.0 31.0 35.0 41.5 48.0
L2 [mm] 24.0 25.5 28.5 33.0 37. 5 42.0 50.4 59.0
L3 [mm] 33.0 37. 0 44.5 53.0 61.0 73.0 89.5 103.0
B [mm] 52 72 90 112 137 175 215 270
F [mm] 42 63 80 100 125 160 200 250
H [mm] 29 46 60 76 95 120 158 210
The stator body must be installed concentrically with the output side. For further Installation advises
and technical details, please refer to page 28.
Key to model codes
Type designation:
E - Type
G - Type
B - Type
Size:
See table
"Performance data
and dimensions" on
pages 28-30
Model:
A
B
C
D
BORE DIA. INPUT DRIVE HUB
Important!
The number is a code,
not the diameter.
BORE DIA. OUTPUT DRIVE HUB
Important!
The number is a code,
not the diameter.
E02 C08 XXX
Consecutive
number
A00
Voltage:
A - 6 VDC
B - 12 VDC
C - 24 VDC
D - 48 VDC
G - 190 VDC
31
32
Different solutions,
driven-side
Clutch-brake combination (L-Type)
This model can be manufactured on request
in the standard sizes. For performance data
and dimensions, see E-Type (page 30) and
B-Type (page 32).
With bearing-supported  ange
A fl ange supported on a hollow shaft and
bearings is used for the output side connec-
tion.
With a  exible coupling
If an axial or angular misalignment is to be
expected between two shafts, a fl exible
coupling can be attached.
To accommodate the variety of transmission requirements, SUCO off ers a wide and modular
product range. Special customized versions are available on request.
Figure 1
Figure 2
Figure 3
With bearing-supported belt pulley
The output drive is a single-groove belt
pulley which is supported on a hollow shaft.
The pitch diameter can be supplied to the
customers' requirements. Multiple-groove
pulleys can also be supplied.
Common groove forms are: SPA, SPB, SPZ, and
Poly-V or DIN/EN.
With belt pulley supported on separate
bearings
Here the output drive is a single or multiple
groove belt pulley which is separately
supported, not on the hollow shaft of the
electromagnetic clutch.
The pitch diameter of the pulley can be
supplied to the customers' requirements.
Common groove forms are: SPA, SPB, SPZ, or
Poly-V or DIN/EN.
With sprockets
A chain sprocket mounted on a bearing
supported fl ange transmits torque on the
output side.
Figure 4
Figure 5
Figure 6 33
Customized solutions
Customized solutions
34
36
General information on special designs
and customized solutions
Customized solutions from SUCO
Where the use of a standard version
is not practical or the power capacity
inadequate, one of our customer-
specific designs can provide a solution.
Here, SUCO has many years of experience.
In cooperation with the customer, our
engineers study enquiries for their
feasibility and produce a cost-effective
solution. Every effort is made to ensure
that the design of the product will
comply with the customers' require-
ments and wishes.
SUCO has its own workshop with a wide
choice of different CNC machines which
enable to satisfy your specific needs
from single piece orders up to serial
quantities.
There is a strong link between SUCO
engineering and production which
ensures highest efficiency by matching
customer needs, product design and
machinability.
On the following pages SUCO shows
a small selection of the numerous
ways of solving drive problems, using
combinations of centrifugal clutches
and brakes or electromagnetic clutches
and brakes that we can offer. They can
form the basis for complete system
solutions realised in combination with
other drive components.
SUCO has patented many designs and
variants in this field.
37
Electrically-controlled centrifugal brake
An electrically-controlled centrifugal brake
allows braking at speeds below the operating
speed of the system that is to be braked.
When power is not applied, the brake disc of a
spring-loaded brake and the brake drum of a
centrifugal brake are not free to rotate. When
the engagement speed, which is below the
normal operating speed, is exceeded, the cen-
trifugal brake applies a braking torque.
Figure 1
Figure 2
Centrifugal brake „SUCO-ZERO
This brake is used to bring a system quickly to
standstill if a pre-defi ned speed is exceeded.
The system can then be reset manually to its
original condition.
Examples of different
customized solutions
38
Examples of different
customized solutions
Figure 3
New safety system SUCO Smartstop
SUCO Smartstop brake is a combination of a
classic centrifugal brake to control the speed
of a wind turbine and thermal actuated static
holding brake to bring down the system to a
complete stop.
Figure 4
Electromagnetic brake in combination
with a centrifugal brake
This version is used for lowering loads at a
defi ned speed with no electric power applied
(power failure in the system).
In normal operation, the load is held by the
electromagnetic brake. Power failure causes
the electromagnetic brake to release.
To prevent the uncontrolled descent of the
load, the centrifugal brake operates to lower
the load at a defi ned speed.
39
Centrifugal clutch with electromagnetic
brake and belt drive
In this case the centrifugal clutch is used to
start a heavily-loaded machine. This protects
the drive, which can accelerate at no-load
until the engagement speed is reached.
Power is transmitted by V-belts. When the
drive is switched off , the electromagnetic
brake can be used to bring it to standstill.
Figure 5
Figure 6
Self-inducing electromagnetic clutch
A belt pulley driven by an internal-combus-
tion engine is fitted with permanent mag-
nets and serves as the rotor of a generator.
The stator consists of a pack of laminations
with copper windings.
The electric current induced in the windings
is fed to the coil of an electromagnetic clutch.
This switches automatically at a certain speed
to connect the drive to a machine (in this case
via a timing-belt pulley).
Where necessary, it is possible for the electro-
magnetic clutch to be switched on or off at
any speed manually or by a control system.
LEBANON
SAUDI ARABIA
GERMANY
EHE Egyptian Hydraulic
Engineering
41
40
HEADQUARTERS
SUCO Robert Scheuff ele
GmbH & Co. KG
Tel.: +49 7142 597 0
Fax: +49 7142 597 19
www.suco.de
info@suco.de
SUCO
worldwide
An innovative and reliable
solution provider at your side
INDIA
Adroit Technologies
Tel.: +91 9663395186
Fax: +91 1147619422
adroittechnology@gmail.com
ITALY
Ma.in.a s.r.l.
Tel.: +39 02 553007 32
Fax: +39 02 553007 62
www.mainasrl.it
info@mainasrl.it
KOREA
Continental Global Ltd
Tel.: +82 2 422 1615
Fax: +82 2 414 6977
www.suco.co.kr
info@suco.co.kr
FRANCE
SUCO VSE France
Tel.: +33 243141421
Fax: +33 243141425
www.sucovse.fr
info@sucovse.fr
FINLAND
Kraftmek Oy
Tel.: +358 1075501
www.kraftmek.com
info@kraftmek.com
DENMARK
NORWAY
Zero-MaxA/S
Tel.: +45 86 8122 88
Fax: +45 86 8153 88
www.zero-max.dk
ext@zero-max.dk
CZECH REPUBLIC
BIBUS s.r.o.
Tel.: +420 5471253 00
Fax: +420 5471253 10
www.bibus.cz
bibus@bibus.cz
CROATIA
BIBUS Zagreb d.o.o.
Tel.: +385 1381 8004
Fax: +385 1381 8005
www.bibus.hr
bibus@bibus.hr
CHINA
Mintai Hydraulics Shanghai
Co., Ltd.
Tel.: +86 21 683939 09
Fax: +86 21 683939 55
www.mintaigroup.com
sales@mintaigroup.com
BRAZIL
Pressure Comercial Ltda.
Tel . : +55 114 6882113
Fax: +55 1142084028
www.pws.com.br/
pressure@pws.com.br
BELGIUM
AZ Hollink Belgium BVBA
Tel . : +32 37221118
Fax: +32 37221119
www.azhollink.eu
belgium@azhollink.eu
AUSTRIA
BIBUS Austria Ges.m.b.H.
Tel.: +43 2242 33388
Fax: +43 2242 3338810
www.bibus.at
info@bibus.at
AUSTRALIA
Norman G. Clark (A/Asia) Pty Ltd
Tel.: +61 3 9450 8200
Fax: +61 3 9450 8222
www.ngclark.com.au
customerservice@ngclark.com.au
w
TURKEY
SWITZERLAND
42
41
THAILAND
CNS Universal Company Limited
Tel.: +66 2 0195581 4
Fax: +66 2 0195587
www.cns-universal-com
wichai@cns-universal.co.th
UK
IRELAND
Combidrive Ltd
Tel.: +44 11269834848
Fax: +44 11621269834850
www.combidrive.co.uk
sales@combidrive.com
UKRAINE
BIBUS Ukraine TOV
Tel.: +380 445454404
Fax: +380 445455483
www.bibus.ua
info@bibus.ua
TAIWAN
Daybreak Int'l (Taiwan) Corp.
Tel.: +886 288661234
Fax: +886 288661239
www.daybreak.com.tw
day111@ms23.hinet.net
SLOVENIA
Inoteh d.o.o. (BIBUS group)
Tel.: +386 2 6730134
Fax: +386 2 6652081
www.inoteh.si
info@inoteh.si
SOUTH AFRICA
Remag (Pty) Ltd.
Tel.: +27 11 3155 672
Fax: +27 11 3155 571
sales@remag.co.za
A.Z. Hollink South Africa Ltd
Tel.: +27 11 397 2987
Fax.: +27 86 595 1475
www.azhollink.co.za
info@azhollink.co.za
SPAIN
PORTUGAL
Amel Técnica Industrial, S.L.
Tel.: +34 93-7162424
Fax: +34 93-7162458
www.ameltecnica.com
xcomas@ameltecnica.com
SLOVAKIA
BIBUS s.r.o.
Tel.: +421 37 7777 957
Fax: +421 37 7777 969
www.bibus.sk
sale@bibus.sk
ROMANIA
SC BIBUS SES SRL
Tel.: +40 356 44 65 00
Fax: +40 356 44 66 60
www.bibus.ro
offi ce@bibus.ro
RUSSIA
BIBUS o.o.o.
Tel.: +7 812 3094151
Fax: +7 812 3094151
www.bibus.ru
info@bibus.ru
SINGAPORE
MALAYSIA
Uni-Drive Systems (S) Pte Ltd
Tel.: +65 68612340
Fax: +65 68610403
www.uni-drive.com
bernard@uni-drive.com
POLAND
BIBUS Menos Sp. Z.o.o
Tel.: +48 58 66 09570
Fax.: +48 58 66 17132
www.bibusmenos.pl
info@bibusmenos.pl
NETHERLANDS
European Transmission
Company B.V.
Tel.: +31 881 200300
Fax: +31 881 200399
www.misteretc.eu
info@misteretc.eu
USA