KTR ROTEX Operating/Mounting Instructions

KTR ROTEX is a torsionally flexible jaw coupling designed to compensate for shaft misalignment, such as those caused by manufacturing inaccuracies or thermal expansion. The double-cardanic design allows for higher radial displacements. It can be assembled axially or radially, and requires specific alignment for optimal performance and lifespan. The device is low-maintenance and requires regular visual inspection to ensure proper operation.

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ROTEX&reg;
Operating/Assembly instructions
Type ZRS
KTR-N
Sheet:
Edition:
40230 EN
1 of 14
3
ROTEX&reg;
Torsionally flexible jaw couplings type ZRS
and their combinations
Please observe protection
note ISO 16016.
Drawn:
Verified:
2023-03-02 Ka/Bru
2023-03-06 Ka
Replacing:
Replaced by:
KTR-N dated 2022-09-22
ROTEX&reg;
Operating/Assembly instructions
Type ZRS
KTR-N
Sheet:
Edition:
40230 EN
2 of 14
3
ROTEX&reg; is a torsionally flexible jaw coupling. It is able to compensate for shaft misalignment, for example caused by manufacturing inaccuracies, thermal expansion, etc.
The double-cardanic design of the coupling allows to compensate for higher radial displacements.
For vertical assembly of type ZRS it is necessary to use a pulling washer in the cam ground of the hub
at the bottom.
Table of contents
1
Technische Daten
3
2
Hinweise
4
2.1
2.2
2.3
2.4
2.5
2.6
4
4
4
4
5
5
3
4
Allgemeine Hinweise
Sicherheits- und Hinweiszeichen
Allgemeiner Gefahrenhinweis
Bestimmungsgem&auml;&szlig;e Verwendung
Kupplungsauslegung
Hinweis zur EG-Maschinenrichtlinie 2006/42/EG
Lagerung, Transport und Verpackung
5
3.1
3.2
5
5
Lagerung
Transport und Verpackung
Montage
6
4.1
4.2
4.3
4.4
4.5
4.6
4.7
6
7
8
8
9
10
11
Bauteile der Kupplung
Hinweis zur Fertigbohrung
Montage der Kupplung (Allgemein)
Montage der Kupplung (axialer Einbau)
Montage der Kupplung (radialer Einbau)
Verlagerungen - Ausrichten der Kupplungen
Biegekritische Drehzahl
5
Inbetriebnahme
12
6
Betriebsst&ouml;rungen, Ursachen und Beseitigung
12
7
Entsorgung
14
8
Wartung und Instandhaltung
14
9
Ersatzteilhaltung, Kundendienstadressen
14
Please observe protection
note ISO 16016.
Drawn:
Verified:
2023-03-02 Ka/Bru
2023-03-06 Ka
Replacing:
Replaced by:
KTR-N dated 2022-09-22
ROTEX&reg;
Operating/Assembly instructions
Type ZRS
1
KTR-N
Sheet:
Edition:
40230 EN
3 of 14
3
Technical data
Illustration 1: Type ZRS (with ROTEX&reg; GS spider)
Table 1: Dimensions
Cap screws
DIN EN ISO 4762
Dimensions 1) in mm
Size
19
24
28
38
42
1)
2)
3)
4)
Max. finish
bore D 2)
25
35
40
48
55
L
L1, L2
B1
S
3)
25
30
35
45
50
12
14
15
18
20
2.0
2.0
2.5
3.0
3.0
L=
DBSE +
L1 + L2
Min.
DBSE 4)
33
37
40
49
53
DH
DH1
DN1
DK
N
K
A1
MxLM
TA in Nm
40
55
65
80
95
54
60
72
87
103
78
94
46
57.5
73
83.5
97
37
40
14.5
20
25
30
30
8
15
17.5
22.5
25
M6x16
M6x20
M8x25
M8x30
M10x35
14
14
34
34
67
For dimensions G and T see table 3; there is a setscrew on the keyway
Bores H7 with keyway to DIN 6885 sheet 1 [JS9] and setscrew
L = DBSE + L1 + L2 - 15
max. 3000 mm (different lengths on request)
Table 2: Technical data
Size
19
24
28
38
42
92 ShA
10
35
95
190
265
Spider 5) (component 2)
Rated torque in Nm
98 ShA
17
60
160
325
450
64 ShD
21
75
200
405
560
Torsional stiffness C of
intermediate pipe 6)
in Nm/rad
3800
11100
23600
43800
82600
5) Maximum torque of coupling TK max = rated torque of coupling TKN x 2
6) Torsion spring stiffness with 1 m length of the intermediate pipe
Please observe protection
note ISO 16016.
Drawn:
Verified:
2023-03-02 Ka/Bru
2023-03-06 Ka
Replacing:
Replaced by:
KTR-N dated 2022-09-22
ROTEX&reg;
Operating/Assembly instructions
Type ZRS
2
KTR-N
Sheet:
Edition:
40230 EN
4 of 14
3
Advice
2.1 General advice
Please read through these operating/assembly instructions carefully before you start up the coupling.
Please pay special attention to the safety instructions!
The operating/assembly instructions are part of your product. Please store them carefully and close to the coupling. The copyright for these operating/assembly instructions remains with KTR.
2.2 Safety and advice symbols
STOP
!

Warning of personal injury
This symbol indicates notes which may contribute to preventing bodily injuries or serious bodily injuries that may
result in death.
Warning of product damages
This symbol indicates notes which may contribute to preventing material or machine damage.
General advice
This symbol indicates notes which may contribute to preventing adverse results or conditions.
2.3 General hazard warnings
STOP
With assembly, operation and maintenance of the coupling it has to be made sure that the
entire drive train is secured against accidental switch-on. You may be seriously hurt by rotating parts. Make absolutely sure to read through and observe the following safety indications.
• All operations on and with the coupling have to be performed taking into account &quot;safety first&quot;.
• Make sure to switch off the power pack before you perform your work on the coupling.
• Secure the power pack against accidental switch-on, e. g. by providing warning signs at the place of switch-on
or removing the fuse for current supply.
• Do not reach into the operating area of the coupling as long as it is in operation.
• Secure the coupling against accidental contact. Provide for the necessary protection devices and covers.
2.4 Intended use
You may only assemble, operate and maintain the coupling if you
• have carefully read through the operating/assembly instructions and understood them
• are technically qualified and specifically trained (e. g. safety, environment, logistics)
• are authorized by your company
The coupling may only be used in accordance with the technical data (see chapter 1). Unauthorized modifications
on the coupling design are not admissible. We will not assume liability for any damage that may arise. In the interest of further development we reserve the right for technical modifications.
The ROTEX&reg; described in here corresponds to the state of the art at the time of printing of these operating/assembly instructions.
Please observe protection
note ISO 16016.
Drawn:
Verified:
2023-03-02 Ka/Bru
2023-03-06 Ka
Replacing:
Replaced by:
KTR-N dated 2022-09-22
ROTEX&reg;
Operating/Assembly instructions
Type ZRS
2
KTR-N
Sheet:
Edition:
40230 EN
5 of 14
3
Advice
2.5 Coupling selection
!
For a permanent and failure-free operation of the coupling it must be selected according to
the selection instructions (according to DIN 740 part 2) for the particular application (see catalogue drive technology &quot;ROTEX&reg;&quot;).
If the operating conditions (performance, speed, modifications on engine and machine)
change, the coupling selection must be reviewed.
Make sure that the technical data regarding torque refer to the spider only. The transmittable
torque of the shaft-hub-connection must be reviewed by the customer and is subject to his
responsibility.
For drives subjected to torsional vibrations (drives with cyclic stress due to torsional vibrations) it is necessary to
perform a torsional vibration calculation to ensure a reliable selection. Typical drives subjected to torsional vibrations are e. g. drives with diesel engines, piston pumps, piston compressors etc. If requested, KTR will perform the
coupling selection and the torsional vibration calculation.
2.6 Reference to EC Machinery Directive 2006/42/EC
The couplings supplied by KTR should be considered as components, not machines or partly completed machines according to EC Machinery Directive 2006/42/EC. Consequently KTR does not have to issue a declaration of
incorporation. For details about safe assembly, start-up and safe operation refer to the present operating/assembly instructions considering the warnings.
3
Storage, transport and packaging
3.1 Storage
The coupling hubs are supplied in preserved condition and can be stored in a dry and roofed place for 6 - 9 months.
The features of the coupling spiders (elastomers) remain unchanged for up to 5 years with favourable storage
conditions.
!
The storage rooms must not include any ozone-generating devices like e. g. fluorescent
light sources, mercury-vapour lamps or electrical high-voltage appliances.
Humid storage rooms are not suitable.
Make sure that condensation is not generated. The best relative air humidity is less than
65 %.
3.2 Transport and packaging
!
In order to avoid any injuries and any kind of damage always make use of proper transport
and lifting equipment.
The couplings are packed differently each depending on size, number and kind of transport. Unless otherwise
contractually agreed, packaging will follow the in-house packaging specifications of KTR.
Please observe protection
note ISO 16016.
Drawn:
Verified:
2023-03-02 Ka/Bru
2023-03-06 Ka
Replacing:
Replaced by:
KTR-N dated 2022-09-22
ROTEX&reg;
Operating/Assembly instructions
Type ZRS
4
KTR-N
Sheet:
Edition:
40230 EN
6 of 14
3
Assembly
The coupling is generally supplied in individual parts. Before assembly the coupling has to be inspected for completeness.
4.1 Components of the coupling
Components of ROTEX&reg; type ZRS
Component
1
2
3
4
5
Quantity
2
2
1
4
2
Description
SPLIT hub
Spider
ZRS intermediate pipe
Cap screw DIN EN ISO 4762
Setscrews DIN EN ISO 4029
Illustration 2: ROTEX&reg; type ZRS
Features of standard spiders
Spider hardness (Shore)
Size
Material
92 ShA-GS
19 - 42
Polyurethane
98 ShA-GS
19 - 42
Polyurethane
64 ShD-H-GS
19 - 38
Hytrel
64 ShD-GS
42
Polyurethane
Marking
(colour)
Please observe protection
note ISO 16016.
Drawn:
Verified:
2023-03-02 Ka/Bru
2023-03-06 Ka
Replacing:
Replaced by:
KTR-N dated 2022-09-22
ROTEX&reg;
Operating/Assembly instructions
Type ZRS
4
KTR-N
Sheet:
Edition:
40230 EN
7 of 14
3
Assembly
4.2 Advice for finish bore
The maximum permissible bore diameters D (see table 1
in chapter 1 - technical data) must not be exceeded. If
these figures are disregarded, the coupling may tear. Rotating particles may cause danger to life.
STOP
• Hub bores machined by the customer have to observe concentricity resp. axial runout (see illustration 3).
• Make absolutely sure to observe the figures for &Oslash;D.
• Carefully align the hubs when the finish bores are drilled.
• Provide for a setscrew according to DIN EN ISO 4029 with
a cup point or an end plate to fasten the hubs axially.
Illustration 3: Concentricity and axial runout
The customer bears the sole responsibility for all machining processes performed subsequently on unbored or pilot bored as well as finish machined coupling components and
spare parts. KTR does not assume any warranty claims resulting from insufficient remachining.
!
Table 3: Setscrew DIN EN ISO 4029
Size
Dimension G in mm
Dimension T in mm
Tightening torque TA in Nm
19
M5
10
2
24
M5
10
2
28
M8
15
10
38
M8
15
10
42
M8
20
10
Table 4: Recommended fit pairs acc. to DIN 748-1
Bore in mm
above
up to
50
50
Shaft tolerance
Bore tolerance
k6
m6
H7
(KTR standard)
If a feather keyway is intended to be used in the hub, it should correspond to the tolerance ISO JS9 (KTR standard) with normal operating conditions or ISO P9 with difficult operating conditions (frequently alternating torsional
direction, shock loads, etc.). The keyway should preferably be located between the cams. With axial fastening via
setscrew the tapped hole should be positioned on the keyway except for Al-D which should be positioned opposite the keyway.
The transmittable torque of the shaft-hub-connection must be reviewed by the customer and is subject to his
responsibility.
Please observe protection
note ISO 16016.
Drawn:
Verified:
2023-03-02 Ka/Bru
2023-03-06 Ka
Replacing:
Replaced by:
KTR-N dated 2022-09-22
ROTEX&reg;
Operating/Assembly instructions
Type ZRS
4
KTR-N
Sheet:
Edition:
40230 EN
8 of 14
3
Assembly
4.3 Assembly of the coupling (general)

We recommend to inspect bores, shaft, keyway and feather key for dimensional accuracy
before assembly.

The cracked surfaces of the ROTEX&reg; SH SPLIT hub halves must be inspected for cleanliness
before assembly.
If necessary, clean the cracked surfaces of the EN-GJL hubs with a wire brush to ensure an
optimal fit.

When disassembling the ROTEX&reg; SH SPLIT EN-GJL hubs, small casting particles may come
loose from the cracked surface, but the function is not affected.
!
With the assembly make sure that the distance dimension DBSE or S (see table 1) is observed to allow for axial clearance of the spider when in operation.
Disregarding this advice may cause damage to the coupling.
4.4 Assembly of the coupling (axial assembly)
• Unscrew the cap screws (component 4) in the SPLIT hubs (component 1) by 2 - 3 pitches.
• Push the SPLIT hubs on the shaft of the driving and driven side until the hub surfaces on the face are flush
with the shaft ends (see illustration 4).
• Hand-tighten the cap screws.
• Insert the spiders (component 2) in the cam section of the driving and driven side (see illustration 5).
• Insert the ZRS intermediate pipe (component 3) between the SPLIT hubs of the driving and driven side (see
illustration 5).
• Shift the power packs in axial direction until the distance dimension DBSE is achieved (see illustration 1).
• If the power packs are already firmly assembled, shifting the SPLIT hubs axially on the shafts allows for setting
the distance dimension DBSE.
• Tighten the cap screws of the SPLIT hubs reciprocally by means of a suitable torque key to the tightening torques TA specified in table 1.
• Fasten the SPLIT hubs by tightening the setscrews DIN EN ISO 4029 with a cup point (tightening torque see
table 1).
Illustration 4: Assembly of the SPLIT hubs

Illustration 5: Assembly of spiders and ZRS intermediate pipe
With vertical assembly of ROTEX&reg; type ZRS a special distance washer of KTR has to be inserted between the coupling hub at the bottom and the spider at the bottom.
Please observe protection
note ISO 16016.
Drawn:
Verified:
2023-03-02 Ka/Bru
2023-03-06 Ka
Replacing:
Replaced by:
KTR-N dated 2022-09-22
ROTEX&reg;
Operating/Assembly instructions
Type ZRS
4
KTR-N
Sheet:
Edition:
40230 EN
9 of 14
3
Assembly
4.5 Assembly of the coupling (radial assembly)
• Unscrew and remove the cap screws (component 4) from the SPLIT hubs (component 1) (see illustration 6).
If the half shells cannot be separated, the separation process should be initiated via a suitable tool (mounting
hammer).
• Position the upper half shell of the first SPLIT hub with the inserted cap screw on the shaft (see illustration 7).
• Align the lower shell of the first SPLIT hub with the upper shell under the shaft (see illustration 8). Screw in the
cap screws over several pitches.
• Align the upper and lower half shell based on the outer shape so that the fracture surfaces fit exactly.
!
Please note that the half shell pairs of the two SPLIT hubs must not be interchanged, since
the fracture surfaces of the respective hubs fit exactly with each other only.
• Hand-tighten the cap screws.
• Repeat the assembly of the first SPLIT hub described in here with the second SPLIT hub.
• Insert the spiders (component 2) in the cam section of the driving and driven side (see illustration 5).
• Insert the ZRS intermediate pipe (component 3) between the SPLIT hubs of the driving and driven side (see
illustration 5).
• Shift the power packs in axial direction until the distance dimension DBSE is achieved (see illustration 1).
• If the power packs are already firmly assembled, shifting the SPLIT hubs axially on the shafts allows for setting
the distance dimension DBSE.
• Tighten the cap screws of the SPLIT hubs reciprocally by means of a suitable torque key to the tightening torques TA specified in table 1.
• Fasten the SPLIT hubs by tightening the setscrews DIN EN ISO 4029 with a cup point (tightening torque see
table 1).
Illustration 6

Illustration 7
Illustration 8
With vertical assembly of ROTEX&reg; type ZRS a special distance washer of KTR has to be inserted between the coupling hub at the bottom and the spider at the bottom.
Please observe protection
note ISO 16016.
Drawn:
Verified:
2023-03-02 Ka/Bru
2023-03-06 Ka
Replacing:
Replaced by:
KTR-N dated 2022-09-22
ROTEX&reg;
Operating/Assembly instructions
Type ZRS
4
KTR-N
Sheet:
Edition:
40230 EN
10 of 14
3
Assembly
4.6 Displacements - alignment of the couplings
The displacement figures specified in table 5 provide for sufficient safety to compensate for external influences
like, for example, thermal expansion or foundation settling.
!
In order to ensure a long service life of the coupling, the shaft ends have to be accurately
aligned. Please absolutely observe the displacement figures specified (see table 5). If the figures are exceeded, the coupling will be damaged.
The more accurate the alignment of the coupling, the longer is its service life.
Please note:
• The displacement figures specified in table 5 are maximum figures which must not arise in parallel. If radial
and angular displacements arise simultaneously, the permissible displacement figures may only be used proportionally (see illustration 10).
• Please inspect with a dial gauge, ruler or feeler gauge whether the permissible displacement figures specified
in table 5 can be observed.
Axial displacements
Radial displacements
Illustration 9: Displacements
Angular displacements
Example:
Illustration 10: Combinations of displacement
ROTEX&reg; 24 ZRS,
Speed 1500 rpm,
Coupling length L = 651 mm
Max. radial displacement Kr = 10 mm
Max. angular displacement Kw = 1&deg;
with radial displacement of 4 mm = 40 % of the max.
radial displacement 10 mm,
results in a permissible angular displacement of 60 %
of the max. angular displacement 1&deg; = 0.6&deg;
Ktotal = Kw + Kr  100 %
Please observe protection
note ISO 16016.
Drawn:
Verified:
2023-03-02 Ka/Bru
2023-03-06 Ka
Replacing:
Replaced by:
KTR-N dated 2022-09-22
ROTEX&reg;
Operating/Assembly instructions
Type ZRS
4
KTR-N
Sheet:
Edition:
40230 EN
11 of 14
3
Assembly
4.6 Displacements - alignment of the couplings
Table 5: Displacement figures
Size
Max. axial displacement DKa
in mm
19
1.2
24
1.4
28
1.5
38
1.8
42
2.0
Max. radial displacement Kr in mm
1) Determine the distance from the center of one spider to
the center of the other spider LZK (see illustration 1 and
2)
LZK = L - L1 - L2 - E
Max. angular displacement Kw
in degree with n=
1500 rpm
3000 rpm
1.0
0.75
2) Calculate the maximum radial displacement Kr
(see illustration 11)
Kr = tanKw x LZK
4.7 Critical bending speed
Please observe the critical
bending speed of the coupling.
Illustration 11: Critical bending speed of type ZRS
Please observe protection
note ISO 16016.
Drawn:
Verified:
2023-03-02 Ka/Bru
2023-03-06 Ka
Replacing:
Replaced by:
KTR-N dated 2022-09-22
ROTEX&reg;
Operating/Assembly instructions
Type ZRS
5
KTR-N
Sheet:
Edition:
40230 EN
12 of 14
3
Start-up
Before start-up of the coupling, inspect the tightening of the setscrews in the hubs, the alignment and the distance
dimension DBSE and adjust, if necessary, and also inspect all screw connections for the tightening torques specified.
Finally the coupling protection against accidental contact must be fitted. It is required in accordance with
DIN EN ISO 12100 (Safety of Machinery) and directive 2014/14/EU and must protect against
• access with a little finger
• falling down of solid foreign objects.
The cover may provide for openings intended for necessary heat dissipation. These openings have to comply with
DIN EN ISO 13857.
The cover must be electrically conductive and included in the equipotential bonding. Bellhousings (magnesium
share below 7.5 %) made of aluminium and damping rings (NBR) can be used as connecting element between
pump and electric motor. The cover may only be taken off with standstill of the unit.
During operation of the coupling, please pay attention to
• different operating noise
• vibrations occurring.
!
6
If you note any irregularities with the coupling during operation, the drive unit must be switched off immediately. The cause of the breakdown must be specified by means of the table
„Breakdowns“ and, if possible, be eliminated according to the proposals. The potential
breakdowns specified can be hints only. To find out the cause all operating factors and machine components must be considered.
Breakdowns, causes and elimination
The below-mentioned failures can lead to a use of the ROTEX&reg; coupling other than intended. In addition to the
specifications given in these operating/assembly instructions make sure to avoid such failures.
The errors listed can only be clues to search for the failures. When searching for the failure the adjacent components must generally be considered.
General failures with improper use:
•
•
•
•
•
•
•
•
•
•
•
Important data for the coupling selection were not forwarded.
The calculation of the shaft-hub-connection was disregarded.
Coupling components with damage occurred during transport are assembled.
If the heated hubs are assembled, the permissible temperature is exceeded.
The clearance of the components to be assembled is not coordinated with one another.
Tightening torques are fallen below/exceeded.
Components are mixed up by mistake/assembled incorrectly.
A wrong or no spider is inserted in the coupling.
No original KTR components (purchased parts) are used.
Old/already worn out spiders or spiders stored for too long are used.
Maintenance intervals are not observed.
Please observe protection
note ISO 16016.
Drawn:
Verified:
2023-03-02 Ka/Bru
2023-03-06 Ka
Replacing:
Replaced by:
KTR-N dated 2022-09-22
ROTEX&reg;
Operating/Assembly instructions
Type ZRS
6
KTR-N
Sheet:
Edition:
40230 EN
13 of 14
3
Breakdowns, causes and elimination
Breakdowns
Causes
Elimination
1) Set the unit out of operation
2) Eliminate the reason for the misalignment (e. g. loose foundation bolts, breaking of the engine mount, heat expansion of
Misalignment
unit components, modification of the installation dimension E
of the coupling)
3) For inspection of wear see item inspection
1) Set the unit out of operation
2) Disassemble the coupling and remove residues of the spider
Different operating noise Wear of spider, short-term tor3) Inspect coupling components and replace coupling compoand/or vibrations occuring que transmission due to metal
nents that have been damaged
contact
4) Insert spider, assemble coupling components
5) Inspect alignment, adjust if necessary
1) Set the unit out of operation
2) Inspect alignment of coupling
Screws for axial fastening of
3) Tighten the screws to fasten the hubs and secure against worhubs working loose
king loose
4) For inspection of wear see item inspection
1) Set the unit out of operation
Wear of spider, torque trans2) Replace complete coupling
mission due to metal contact
3) Inspect alignment
1) Set the unit out of operation
Breaking of the cams due to 2) Replace complete coupling
high impact energy/overload 3) Inspect alignment
4) Find out the reason for overload
1) Set the unit out of operation
Breaking of cams
Operating parameters do not 2) Review the operating parameters and select a bigger coupling
meet with the performance of
(consider mounting space)
the coupling
3) Assemble new coupling size
4) Inspect alignment
1) Set the unit out of operation
2) Replace complete coupling
Operating error of the unit
3) Inspect alignment
4) Instruct and train the service staff
1) Set the unit out of operation
2) Eliminate the reason for the misalignment (e. g. loose foundation bolts, breaking of the engine mount, heat expansion of
Misalignment
unit components, modification of the installation dimension E
of the coupling)
3) For inspection of wear see item inspection
1) Set the unit out of operation
2) Disassemble the coupling and remove residues of the spider
e. g. contact with aggressive
3) Inspect coupling components and replace coupling compoliquids/oils, ozone influence,
nents that have been damaged
too high/low ambient tempera4) Insert spider, assemble coupling components
Early wear of spider
tures etc. causing physical
5) Inspect alignment, adjust if necessary
modification of the spider
6) Make sure that further physical modifications of the spider are
excluded
1) Set the unit out of operation
2) Disassemble the coupling and remove residues of the spider
Impermissibly high ambi3) Inspect coupling components and replace coupling compoent/contact temperatures for
nents that have been damaged
the spider, max. permissible
4) Insert spider, assemble coupling components
e. g. with T-PUR&reg;
5) Inspect alignment, adjust if necessary
-50 &deg;C/+120 &deg;C
6) Inspect and adjust ambient/contact temperature (correct by using other spider materials, if necessary)
1) Set the unit out of operation
2) Disassemble the coupling and remove residues of the spider
3) Inspect coupling components and replace coupling compoEarly wear of spider (linents that have been damaged
quefaction of material inVibrations of drive
4) Insert spider, assemble coupling components
side the spider cam)
5) Inspect alignment, adjust if necessary
6) Find out the reason for the vibrations (possibly corrective by
spider with lower or higher Shore hardness)
Please observe protection
note ISO 16016.
Drawn:
Verified:
2023-03-02 Ka/Bru
2023-03-06 Ka
Replacing:
Replaced by:
KTR-N dated 2022-09-22
ROTEX&reg;
Operating/Assembly instructions
Type ZRS
7
KTR-N
Sheet:
Edition:
40230 EN
14 of 14
3
Disposal
In respect of environmental protection we would ask you to dispose of the packaging resp. products on termination of their service life in accordance with the legal regulations resp. standards that apply.
• Metal
Any metal components have to be cleaned and disposed of by scrap metal.
• Nylon materials
Nylon materials have to be collected and disposed of by a waste disposal company.
8
Maintenance and service
ROTEX&reg; is a low-maintenance coupling. We recommend to perform a visual inspection on the coupling at least
once a year. Please pay special attention to the condition of the coupling spiders.
• Since the flexible machine bearings of the driving and driven side settle during the course of load, inspect the
alignment of the coupling and re-align the coupling, if necessary.
• The coupling components have to be inspected for damages.
• The screw connections have to be inspected visually.
!
9
Having started up the coupling the tightening torques of the screws have to be inspected
during the usual inspection intervals.
Spares inventory, customer service addresses
A basic requirement to ensure the readiness for use of the coupling is a stock of the most important spare parts
on site.
Contact addresses of the KTR partners for spare parts and orders can be obtained from the KTR homepage at
www.ktr.com.

KTR does not assume any liability or warranty for the use of spare parts and accessories
which are not provided by KTR and for the damages which may incur as a result.
KTR Systems GmbH
Carl-Zeiss-Str. 25
D-48432 Rheine
Phone: +49 5971 798-0
E-mail: [email protected]
Please observe protection
note ISO 16016.
Drawn:
Verified:
2023-03-02 Ka/Bru
2023-03-06 Ka
Replacing:
Replaced by:
KTR-N dated 2022-09-22
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Key features

Torsionally flexible
Shaft misalignment compensation
Double-cardanic design
Axial & radial assembly
Low maintenance

Frequently asked questions

KTR ROTEX couplings are used to connect shafts in applications where misalignment can occur. They compensate for misalignment due to manufacturing tolerances, thermal expansion, or foundation settling.

The assembly process depends on whether you're assembling axially or radially. Refer to the manual for detailed instructions on assembling both types.

ROTEX couplings require minimal maintenance. Visually inspect the coupling at least once a year, paying special attention to the spider condition. Also, check alignment and retighten screws as needed.