FLENDER FASTEX IC250 User manual

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FLENDER COUPLINGS
FASTEX
Compact assembly and operating instructions 3900en
Edition 04/2022
FASTEX IC250

FLENDER COUPLINGS
FASTEX IC250
Clamping elements
3900en
Compact assembly and
operating instructions
Edition 04/2022
Introduction
1
Description
2
Application planning
3
Assembly
4
D
isassembly 5
Disposal
6
Service
s and support 7
Technical data
A

Legal information
Warning notice system
This manual contains notices you have to observe in order to ensure your personal safety, as well as to
prevent damage to property. The notices referring to your personal safety are highlighted in the manual by
a safety alert symbol, notices referring only to property damage have no safety alert symbol. These notices
shown below are graded according to the degree of danger.
DANGER
indicates that death or severe personal injury
will
result if proper precautions are not taken
WARNING
indicates that death or severe personal injury
may
result if proper precautions are not taken.
CAUTION
indicates that minor personal
injury can result if proper precautions are not taken.
NOTICE
indicates that property damage can result if proper precautions are not taken.
If more than one degree of danger is present, the warning notice representing the highest degree of
danger will be used. A notice warning of injury to persons with a safety alert symbol may also include a
warning relating to property damage.
Qualified Personnel
The product/system described in this documentation may be operated only by personnel qualified for the
specific task in accordance with the relevant documentation, in particular its warning notices and safety
instructions. Qualified personnel are those who, based on their training and experience, are capable of
identifying risks and avoiding potential hazards when working with these products/systems.
Proper use of Flender products
Note the following:
WARNING
Flender products may only be used for the applications described in the catalog and in the relevant
technical documentation. If products and components from other manufacturers are used, these
must be recommended or approved by Flender. Proper transport, storage, installation, assembly,
commissioning, operation and maintenance are required to ensure that the products operate safely
and without any problems. The permissible ambient conditions must be complied with. The
information in the relevant documentation must
be observed.
Trademarks
All names identified by ® are registered trademarks of Flender GmbH. The remaining trademarks in this
publication may be trademarks whose use by third parties for their own purposes could violate the rights of
the owner.
.
Disclaimer of Liability
We have reviewed the contents of this publication to ensure consistency with the hardware and software
described. Since variance cannot be precluded entirely, we cannot guarantee full consistency. However,
the information in this publication is reviewed regularly and any necessary corrections are included in
subsequent editions.
Flender GmbH
Alfred-Flender-Straße 77
46395 BOCHOLT
Germany
Document order number: 3900de
℗04/2022 Subject to change
Copyright © Flender GmbH 2022.
All rights reserved

4
FASTEX IC250 Clamping element 3900de
Compact assembly and operating instructions 04/2022
Table of contents
1 Introduction ..........................................................................................................................5
1.1 Main operation instructions .................................................................................5
1.2 General information ............................................................................................5
1.3 Intended use ......................................................................................................6
1.4 Safety instructions for a coupling for use in potentially explosive atmospheres ....6
2 Description ...........................................................................................................................7
3 Application planning............................................................................................................8
3.1 Transport of the clamping element ......................................................................8
3.1 Storage of the clamping element.........................................................................8
4 Assembly..............................................................................................................................9
4.1 Assembling the clamping element.......................................................................10
5 Disassemble .........................................................................................................................11
6 Disposal................................................................................................................................12
7 Service und support.............................................................................................................12
A Technical data ......................................................................................................................13
A.1 Geometry data and tightening torques ................................................................13
Tables
Table 1-1 General warnings ...............................................................................................5
Table 4-1 Recommended assigned fits...............................................................................9
Table 7-1 Geometry data, weights, tightening torques ........................................................14
Figures
Figure 2-1 Construction of the clamping element FASTEX IC250.........................................7
Figure 4-1 Fit assignment....................................................................................................9
Figure 4-2 Assembly FASTEX IC250...................................................................................10
Figure 5-1 Disassembly FASTEX IC250 ..............................................................................11
Figure 7-1 Parts overview FASTEX IC250...........................................................................13

5
FASTEX IC250 Clamping element 3900de
Compact assembly and operating instructions 04/2022
1 Introduction
1.1 Main operation instructions
These instructions are only valid in conjunction with the associated operating instructions
from the component supplier.
1.2 General information
Instructions
Notice the information and regulations in these installation instructions and in the main
operating instructions from the component supplier.
Please make sure that every person who is commissioned to work on the clamping element
has read and understood these instructions prior to handling the clamping element and
observes all of the points.
Only the knowledge of these instructions can avoid faults on the clamping element and
ensure fault-free and safe operation. Non-adherence to the instructions can cause product or
property damage or personal injury. Flender does not accept any liability for damage or
operating failures that are due to non-adherence to these instructions.
.
Symbols
Table 1-1 General warnings
ISO ANSI Warning
Warning - hazardous electrical voltage
Warning - explosive substances
--- Warning - entanglement hazard
--- Warning - hot surfaces
--- Warning - substances that are harmful to health or are irritants
--- Warning - corrosive substances
--- Warning - suspended load
--- Warning - hand injuries
ATEX certification

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FASTEX IC250 Clamping element 3900de
Compact assembly and operating instructions 04/2022
Explanation regarding Machinery Directive 2006/42/EG
The clamping elements described here are components in accordance with the Machinery
Directive and do not require a declaration of incorporation.
Work on the clamping element
Only carry out work on the clamping element when it is not in operation and is not under
load. Secure the drive unit against being switched on accidentally. Attach a notice to the
switch stating clearly that work is being carried out on the clamping element. Ensure that the
entire unit is not under load..
1.3 Intended use
Only use the clamping element according to the conditions specified in the service and
delivery contract and the technical data in the annex. Deviating operating conditions are
considered improper use. The user or owner of the machine or plant is solely liable for any
resulting damage.
When using the clamping element please specifically observe the following:
·Do not make any modifications to the clamping element that go beyond the permissible
machining described in these instructions. This also applies to touch protection facilities.
·Do not use the clamping element as a torque-limiting safety element.
If you have any queries, please contact our customer service (see Service and support
(Page 12)).
1.4 Safety instructions for a clamping element for use in
potentially explosive atmospheres
The assembly supplier is responsible for the guideline-compliant design of the system
clamping element with all associated components. In potentially explosive areas, it must be
ensured that the design torque TC l according to Table 7-1 is not exceeded at any operating
point. The identification and information on the conditions of use can be found in the main
operating instructions of the assembly supplier.

7
FASTEX IC250 Clamping element 3900de
Compact assembly and operating instructions 04/2022
2 Description
The clamping elements described here are universally applicable, self-centering clamping
elements whose function is the tensionally locked transmission of torque between shaft and
hub.
The installation and operation of the specified clamping elements in combination with
cylindrically bored hubs is described in these instructions.
Design
Detailed information on the dimensions can be found in Appendix A Technical data
(Page Fehler! Textmarke nicht definiert.).
1 Clamping hub
2 Clamping bush
3 Supporting ring
4 Cylinder-head screw
Figure 2-1 Construction of the clamping element FASTEX IC250
Contact surfaces

8
FASTEX IC250 Clamping element 3900de
Compact assembly and operating instructions 04/2022
3 Application planning
Check the delivery for damage and for completeness. Report any damage and/or missing
parts to Flender immediately.
The coupling is delivered in preassembled groups. These may be dismantled.
3.1 Transport of the clamping element
WARNING
Severe personal injury due to improper transport
Severe personal injury due to falling components or due to crushing. Damage to clamping
element parts possible due to use of unsuitable transport means.
·Only use lifting gear and load suspension devices with sufficient load bearing capacity
for transport.
·Please observe the symbols applied on the packaging.
3.1 Storage of the clamping element
The clamping element, unless not specifically ordered otherwise, is supplied with
preservation and can be stored for up to 12 months in a dry and dust-free storage room.

9
FASTEX IC250 Clamping element 3900de
Compact assembly and operating instructions 04/2022
4 Assembly
DANGER
Danger due to bursting of the assembly group
If not used as intended, the assembly can burst. There is a risk of fatal injury from flying
fragments. Bursting of the assembly can lead to an explosion in potentially explosive
atmospheres.
·Use the clamping element as intended
Note
Information about the assembly of the clamping element
·Only use undamaged components for the assembly of the clamping element.
·Follow the assembly sequence.
·Please ensure that there is sufficient space at the assembly location and that the
location is tidy and clean in order to be able to assemble and maintain the clamping
element without any risk.
·If a dimension drawing has been created for the clamping element, please observe the
information it contains as a matter of priority
Recommended assigned fits
In the following table you will find the permissible fits of the clamping element and the shaft.
Table 4-1 Recommended assigned fits
component tolerance surface quality
Shaft tolerance h8 j7 k6 m6 Ra ≤3,2 µm
Bore tolerance H7 Ra ≤3,2 µm
Figure 4-1 Fit assignment
Contact surfaces

10
FASTEX IC250 Clamping element 3900de
Compact assembly and operating instructions 04/2022
4.1 Assembling the clamping element
WARNING
The design torque TC l must not be exceeded at any operating point. It must be
ensured that the cylinder head bolts are tightened with the tightening torques
according to Table 7-1
Preparatory work
1. Make sure the surfaces to be joined are in perfect condition.
2. Clean the contact surfaces as well as the shaft and hub.
3. Slightly oil the contact surfaces. Do not use any grease or oil that contains molybdenum
disulfide or other additives that significantly reduce the coefficient of friction.
4. Place the clamping bush (2) on the clamping hub (1). Position the clamping bush (2) so
that the release threads are offset to the slot in the clamping hub (1).
5. Screw the clamping hub (1) to the clamping bush (2) without tightening the cylinder-head
screws (4).
6. Slide the retaining ring (3) onto the flange of the clamping bush (2).
Assemble
1. Position the pre-assembled clamping element in the hub bore and then place both parts
on the shaft.
2. Slightly tighten the cylinder-head screws (4) so that the clamping element can still be
moved.
3. Align the Clamping element on the shaft.
4. The shaft must fill the entire length of the clamping hub (1).
5. The retaining ring (3) must be in full contact with the flange of the clamping hub (1).
6. Tighten the cylinder-head screws (4) crosswise in several turns. The specified tightening
torque can be found in the Tightening torques and widths A/F section.
1 Clamping hub
2 Clamping bush
3 Supporting ring
4 Cylinder-head screw
Figure 4-2 Assembly FASTEX IC250
Kontaktflächen

11
FASTEX IC250 Clamping element 3900de
Compact assembly and operating instructions 04/2022
5 Disassembly
Procedure
1. Loosen and remove all cylinder-head screws (4) one after the other.
2. Screw the cylinder-head screws (4) into the existing release threads of the
clamping hub (1).
3. Remove the clamping element. Use suitable lifting gear when doing this.
4. Check the hub bore and the shaft for damage and protect them against corrosion.
When reinstalling the clamping element please observe the information in the chapter
Assembly (Page 10).
Figure 5-1 Disassembly FASTEX IC250

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FASTEX IC250 Clamping element 3900de
Compact assembly and operating instructions 04/2022
6 Disposal
Dispose of the clamping element parts according to applicable national regulations or recycle
them.
7 Service und support
When ordering spare parts, requesting a customer service technician or in the case of
technical queries, please contact our factory or one of our customer service addresses:
Flender GmbH
Schlavenhorst 100
46395 Bocholt
Deutschland
Tel.: [phone]
Fax.: [phone]
Flender GmbH (http://www.flender.com)

flender.com
A Technical data
A.1 Geometry data and tightening torques
In this section you can find dimension drawings and technical data for the Flender clamping
elements.:
5 Clamping hub
6 Clamping bush
7 Supporting ring
8 Cylinder-head screw
Figure 7-1 Parts overview FASTEX IC250

flender.com
Table 7-1 Geometry data, weights, tightening torques
mm mm mm mm mm mm Nm mm Nm mm mm kg
6 x 14 25 24,5 21,5 18,5 10 11 M3 2,6 4 10 2,5 0,05
7 x 15 25 29 25 21,5 11,5 23 M4 5,6 3 10 3 0,05
8 x 15 27 29 25 21,5 11,5 26 M4 5,6 3 10 3 0,05
9 x 16 28 30 26 22,5 14 37 M4 5,6 4 10 3 0,06
10 x 16 29 30 26 22,5 14 42 M4 5,6 4 10 3 0,16
11 x 18 32 30 26 22,5 13,5 50 M4 5,6 4 10 3 0,18
12 x 18 32 30 26 22,5 13,5 55 M4 5,6 4 10 3 0,18
13 x 23 38 30 26 22,5 14 60 M4 5,6 4 10 3 0,20
14 x 23 38 30 26 22,5 14 100 M4 5,6 6 10 3 0,20
15 x 24 44 42 36 28,5 16 145 M6 15 4 18 5 0,21
16 x 24 44 42 36 28,5 16 155 M6 15 4 18 5 0,28
17 x 25 45 42 36 28,5 16 162 M6 15 4 18 5 0,22
17 x 26 47 44 38 31 18 180 M6 17 4 18 5 0,23
18 x 26 47 44 38 31 18 200 M6 17 4 18 5 0,23
19 x 27 48 44 38 31 18 210 M6 17 4 18 5 0,25
20 x 28 49 44 38 31 18 220 M6 17 4 18 5 0,24
22 x 32 54 51 45 38 25 250 M6 17 4 18 5 0,32
24 x 34 56 51 45 38 25 270 M6 17 4 18 5 0,34
25 x 34 56 51 45 38 25 280 M6 17 4 18 5 0,33
28 x 39 61 51 45 38 25 480 M6 17 6 18 5 0,41
30 x 41 62 51 45 38 25 510 M6 17 6 18 5 0,41
32 x 43 65 51 45 38 25 730 M6 17 8 18 5 0,48
35 x 47 69 56 50 43 30 800 M6 17 8 18 5 0,53
38 x 50 72 56 50 43 30 860 M6 17 8 18 5 0,58
40 x 53 75 56 50 43 30 900 M6 17 8 18 5 0,62
42 x 55 78 65 57 49 32 1800 M8 41 8 22 6 0,88
45 x 59 85 73 65 57 40 1900 M8 41 8 22 6 1,03
46 x 62 87 78 70 62 45 1920 M6 41 8 22 6 1,00
48 x 62 87 78 70 62 45 2000 M8 41 8 22 6 0,98
50 x 65 92 78 70 62 45 2600 M8 41 10 22 6 1,27
55 x 71 98 83 75 67 50 2900 M8 41 10 22 6 1,49
60 x 77 104 83 75 67 50 3100 M8 41 10 22 6 1,66
65 x 84 111 83 75 67 50 3400 M8 41 10 22 6 1,92
70 x 90 119 101 91 80 60 5800 M10 83 10 25 8 2,93
75 x 95 126 101 91 80 60 6200 M10 83 10 25 8 2,29
80 x 100 131 106 96 85 65 8000 M10 83 12 25 8 3,34
85 x 106 137 106 96 85 65 8500 M10 83 12 25 8 3,62
90 x 112 143 106 96 85 65 11200 M10 83 15 25 8 3,95
95 x 120 153 106 96 85 65 11800 M10 83 15 25 8 4,46
100 x 125 162 114 102 89 65 14600 M12 145 12 30 10 5,50
110 x 140 180 140 128 114 90 16000 M12 145 12 30 10 8,00
120 x 155 198 140 128 114 90 17400 M12 145 12 30 10 10,50
130 x 165 208 140 128 114 90 25000 M12 145 16 30 10 11,90
TALSSW M
Limit torque
TCl
Hexagon socket-head screws acc. to DIN EN ISO 4762 - 12.9
m
Size Dimensions Weight
Gew.-size Tightening
torque Number Screwlength width A/F SW
D1x D2DALGL1L2L3

flender.com

flender.com
FASTEX IC250
Compact assembly and operating instructions 3900de
Edition 04/2022
Flender GmbH
Alfred-Flender-Straße 77
46395 Bocholt
Germany