KTR Damping rods Operating/Mounting Instructions

KTR Damping rods are designed to reduce noise levels and vibrations in various machinery applications. They are available in different sizes and configurations to accommodate specific needs. These rods are typically used with electric motors, foot flanges, and oil coolers to dampen vibrations and noise generated during operation. They are also equipped with protective features to ensure safe operation and prevent accidents.

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Damping rods
Operating/Assembly instructions
KTR-N
Sheet:
Edition:
42110 EN
1 of 8
2
Damping rods reduce the noise level and dampen vibrations.
Table of contents
1
Technical data
2
2
Advice
4
2.1
2.2
2.3
2.4
General advice
Safety and advice symbols
General hazard warnings
Intended use
4
4
4
4
Storage, transport and packaging
5
3.1
3.2
5
5
3
4
Storage
Transport and packaging
Assembly
5
4.1
4.2
4.3
4.4
4.5
4.6
5
6
6
7
7
8
Load of damping rods
Assembly of damping rods DSM with electric motor
Assembly of damping rods DSFL with foot flange PTFL
Assembly of damping rods DSFS with foot flange PTFS
Assembly of damping rods DSK with PIK oil cooler
Other information
5
Disposal
8
6
Spares inventory, customer service addresses
8
Please observe protection
note ISO 16016.
Drawn:
Verified:
2021-02-24 Pz/Str
2021-02-24 Pz
Replacing:
Replaced by:
KTR-N dated 2021-02-16
Damping rods
Operating/Assembly instructions
1
KTR-N
Sheet:
Edition:
42110 EN
2 of 8
2
b2
25
25
25
25
d
14
14
14
14
D
20
20
20
20
M1
M6
M8
M8
M8
M2
-
Technical data
Illustration 1: Dimensions of damping rods
Table 1: Type DSM for electric motors type IMB 35, protection class IP54
Size
DSM 71
DSM 80
DSM 90 S
DSM 90 L
DSM 100 L
DSM 112 M
DSM 132 S
DSM 132 M
DSM 160 M
DSM 160 L
DSM 180 M
DSM 180 L
DSM 200 L
DSM 225 S
DSM 225 M
DSM 250 M
DSM 280 S
DSM 280 M
DSM 315 S
DSM 315 M
DSM 315 L
For motor
size
71
80
90 S
90 L
100 L
112 M
132 S
132 M
160 M
160 L
180 M
180 L
200 L
225 S
225 M
250 M
280 S
280 M
315 S
315 M
315 L
Dimensions [mm]
h2
b
b1
12
50
21
12
50
22
12
50
24.5
12
50
24
L
196
176
196
240
L1
156
146
156
205
L2
90
100
100
125
L3
-
h
40
40
40
40
h1
8
8
8
8
240
205
140
-
40
8
12
50
22
25
14
20
M10
-
280
245
140
178
45
8
12
50
20
25
14
20
M10
M10
340
416
416
446
492
492
492
492
300
370
370
400
430
430
445
445
210
254
241
279
305
286
311
349
-
60
60
60
60
60
60
60
60
15
15
15
15
15
15
15
15
15
15
15
15
15
15
15
15
70
70
70
70
70
70
70
100
28
28
35
35
35
35
35
50
35
35
35
35
35
35
35
50
18
18
18
18
22
22
22
22
26
26
26
26
33
33
33
33
M12
M12
M12
M12
M16
M16
M16
M20
-
614
570
368
419
60
15
15
100
50
50
22
33
M20
M20
614
570
406
457
60
15
15
120
60
60
22
33
M24
M24
704
660
508
-
60
15
15
120
60
60
22
33
M24
-
Please observe protection
note ISO 16016.
Drawn:
Verified:
2021-02-24 Pz/Str
2021-02-24 Pz
Replacing:
Replaced by:
KTR-N dated 2021-02-16
Damping rods
Operating/Assembly instructions
1
KTR-N
Sheet:
Edition:
42110 EN
3 of 8
2
Technical data
Illustration 1: Dimensions of damping rods
Table 2: Type DSFL for foot flange type PTFL
Size
DSFL 160
DSFL 200
DSFL 250
DSFL 300
DSFL 350
For foot
flange
PTFL 160
PTFL 200
PTFL 250
PTFL 300
PTFL 350
L
176
176
230
270
305
L1
130
130
140
170
200
L2
50
60
60
80
110
L3
-
h
40
40
40
40
60
h1
8
8
8
8
15
Dimensions [mm]
h2
b
12
50
12
50
12
50
12
50
15
70
b1
10
15
15
15
25
b2
25
25
25
25
35
d
14
14
14
14
18
D
20
20
20
20
26
M1
M8
M10
M12
M12
M16
M2
-
Dimensions [mm]
h2
b
b1
12
50
19
12
50
17.5
b2
25
25
d
13
13
D
20
20
M1
M10
M12
M2
-
Table 3: Type DSFS for foot flange type PTFS
Size
DSFS 200
DSFS 250
DSFS
250/300L
DSFS 300
DSFS 350
DSFS
350/400 L
DSFS 400
DSFS 450
DSFS
450 L
DSFS 550
DSFS 660
For foot
flange
PTFS 200
PTFS 250
PTFS
250/300L
PTFS 300
PTFS 350
PTFS
350/400 L
PTFS 400
PTFS 450
PTFS
450 L
PTFS 550
PTFS 660
L
245
240
L1
205
140
L2
150
185
L3
-
h
40
40
h1
8
8
340
300
185
225
40
8
12
50
17.5
32.5
13
20
M12
M12
280
325
180
200
225
265
-
40
60
8
15
12
15
50
70
17.5
25
25
35
13
17
20
26
M12
M16
-
430
390
265
300
60
15
15
70
25
45
18
26
M16
M16
350
385
234
270
300
335
-
60
60
15
15
15
15
70
70
25
25
35
35
17
17
26
26
M16
M16
-
465
425
335
-
60
15
15
70
25
35
18
26
M16
-
490
635
350
415
415
495
-
60
60
15
15
15
15
100
100
25
30
50
50
18
22
26
33
M16
M20
-
L3
-
h
40
40
45
60
h1
8
8
8
15
b1
25
25
25
35
b2
25
25
25
35
d
14
14
14
14
D
20
20
20
20
M1
M12
M12
M12
M12
M2
-
Table 4: Type DKS for PIK oil cooler
Size
DSK 200
DSK 250
DSK 300
DSK 350

For foot
flange
PIK 200
PIK 250
PIK 300
PIK 350
L
240
270
280
325
L1
210
240
250
295
L2
154.5
175.5
199.5
243.5
Dimensions [mm]
h2
b
12
50
12
50
12
50
15
70
Please order our special data sheet for special damping rods type SDS.
Please observe protection
note ISO 16016.
Drawn:
Verified:
2021-02-24 Pz/Str
2021-02-24 Pz
Replacing:
Replaced by:
KTR-N dated 2021-02-16
Damping rods
Operating/Assembly instructions
2
KTR-N
Sheet:
Edition:
42110 EN
4 of 8
2
Advice
2.1 General advice
Please read carefully through these operating/assembly instructions before you start up the damping rod. 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 damping rods. 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 and disassembly of the damping rods 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. Please make absolutely sure to read through and observe the following safety indications.
• All operations on and with the damping rods have to be performed taking into account &quot;safety first&quot;.
• Please make sure to switch off the power pack before you perform your work on the damping rods.
• 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 operation area of the machine as long as it is in operation.
• Please secure the rotating drive components against accidental contact. Please provide for the necessary
protection devices and covers.
2.4 Intended use
You may only assemble and disassemble the damping rods 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 damping rod may only be used in accordance with the technical data (see chapter 1). Unauthorized modifications on the damping rods 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 damping rod described in here corresponds to the technical status at the time of printing of these operating/assembly instructions.
Please observe protection
note ISO 16016.
Drawn:
Verified:
2021-02-24 Pz/Str
2021-02-24 Pz
Replacing:
Replaced by:
KTR-N dated 2021-02-16
Damping rods
Operating/Assembly instructions
3
KTR-N
Sheet:
Edition:
42110 EN
5 of 8
2
Storage, transport and packaging
3.1 Storage
The damping rods are supplied in preserved condition and can be stored at a dry and covered place for 6 - 9
months.
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.
Please 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 please always make use of proper
transport and lifting equipment.
!
The damping rods 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.
4
Assembly
The damping rod is supplied ready for assembly.
4.1 Load of damping rods

The standard damping rods (DSM, DSFL, DSFS, DSK) are selected in that they withstand the
loads for intended use.
Any deviations thereof (e. g. setups on the electric motor) must be agreed upon with KTR
and approved before assembly.
All damping rods are to be loaded on pressure only. Low tensile stresses, e. g. generated by the bending torque
with horizontal mounting by uneven weight distribution, are permissible.
!
Shear stresses are not permissible and are imperatively to be avoided.
Please observe protection
note ISO 16016.
Drawn:
Verified:
2021-02-24 Pz/Str
2021-02-24 Pz
Replacing:
Replaced by:
KTR-N dated 2021-02-16
KTR-N
Sheet:
Edition:
Damping rods
Operating/Assembly instructions
4
42110 EN
6 of 8
2
Assembly
4.2 Assembly of damping rods DSM with electric motor
• The electric motor is fitted with its feet on the damping rods.

The motor feet must fully fit on the damping
rods.
• Select the screw length of electric motor - damping rod as follows:
screw length = thickness of motor foot +
thread depth of damping rod (dimension h2)
• Insert the screws with the washer through the motor foot and
screw them in the respective thread of the damping rod. For
tightening torques TA see table 5.
Screws generally have to be fitted with Loctite, Omnifit 230M or
similar adhesives for fastening.
Illustration 2: Assembly of damping rods DSM
with electric motor
• Insert the hexagon socket screws through the counterbores of the damping rods and screw them in the respective thread of the supporting surface (base plate). The tightening torque T A complies with the material of
the base plate and must be calculated before assembly.
STOP
Please note that serious injuries (bruises) may be caused by tilting the drive. Secure the
drive unit by relevant support devices.
Table 5: Tightening torques of the cap screws DIN EN ISO 4762
Cap screws DIN EN ISO 4762 1)
Tightening torque
TA [Nm] 2)
M8
M10
M12
M16
M20
M24
25
49
86
210
410
710
1) min. property class 8.8
2) Tightening torque according to property class 8.8
4.3 Assembly of damping rods DSFL with foot flange PTFL
• The PTFL is fitted with its feet on the damping rods.

The feet must fully fit on the damping rods.
• Select the screw length of PTFL - damping rod as follows:
screw length = thickness of foot +
thread depth of damping rod (dimension h2)
• Insert the screws with the washer through the PTFL foot and
screw them in the respective thread of the damping rod. For
tightening torques TA see table 5.
Screws generally have to be fitted with Loctite, Omnifit 230M or
similar adhesives for fastening.
Illustration 3: Assembly of damping rods DSFL
with foot flange PTFL
• Insert the hexagon socket screws through the counterbores of the damping rods and screw them in the respective thread of the supporting surface (base plate). The tightening torque T A complies with the material of
the base plate and must be calculated before assembly.
STOP
Please note that serious injuries (bruises) may be caused by tilting the drive. Secure the
drive unit by relevant support devices.
Please observe protection
note ISO 16016.
Drawn:
Verified:
2021-02-24 Pz/Str
2021-02-24 Pz
Replacing:
Replaced by:
KTR-N dated 2021-02-16
Damping rods
Operating/Assembly instructions
4
KTR-N
Sheet:
Edition:
42110 EN
7 of 8
2
Assembly
4.4 Assembly of damping rods DSFS with foot flange PTFS
• The PTFS is fitted with its feet on the damping rods.

The feet must fully fit on the damping rods.
• Select the screw length of PTFS - damping rod as follows:
screw length = thickness of foot +
thread depth of damping rod (dimension h2)
• Insert the screws with washer through the PTFS foot and
screw them in the respective thread of the damping rod. For
tightening torques TA see table 5.
Screws generally have to be fitted with Loctite, Omnifit 230M or
similar adhesives for fastening.
Illustration 4: Assembly of damping rods DSFS
with foot flange PTFS
• Insert the hexagon socket screws through the counterbores of the damping rods and screw them in the respective thread of the supporting surface (base plate). The tightening torque T A complies with the material of
the base plate and must be calculated before assembly.
STOP
Please note that serious injuries (bruises) may be caused by tilting the drive. Secure the
drive unit by relevant support devices.
4.5 Assembly of damping rods DSK with PIK oil cooler
• The PIK is fitted with its feet on the damping rods.

The feet must fully fit on the damping rods.
• Select the screw length of PIK - damping rod as follows: screw
length = thickness of foot +
thread depth of damping rod (dimension h2)
• Insert the screws through the PIK foot and screw them in the
respective thread of the damping rod. For tightening torques TA
see table 5.
Screws generally have to be fitted with Loctite, Omnifit 230M or
similar adhesives for fastening.
•
Illustration 5: Assembly of damping rods DSK
with PIK oil cooler
Insert the hexagon socket screws through the counterbores of the damping rods and screw them in the respective thread of the supporting surface (base plate). The tightening torque T A complies with the material of
the base plate and must be calculated before assembly.
STOP
Please note that serious injuries (bruises) may be caused by tilting the drive. Secure the
drive unit by relevant support devices.
Please observe protection
note ISO 16016.
Drawn:
Verified:
2021-02-24 Pz/Str
2021-02-24 Pz
Replacing:
Replaced by:
KTR-N dated 2021-02-16
Damping rods
Operating/Assembly instructions
4
KTR-N
Sheet:
Edition:
42110 EN
8 of 8
2
Assembly
4.6 Other information
Please observe the following KTR mounting instructions:
•
Assembly instructions of foot flange
➔
KTR-N 41110
•
Assembly instructions of PIK oil cooler
➔
KTR-N 41028
5
Disposal
In respect of environmental protection we would ask you to dispose of the packaging or products on termination of
their service life in accordance with the legal regulations and standards that apply, respectively.
6
Spares inventory, customer service addresses
A basic requirement to ensure the readiness for use of the damping rods 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.
Please observe protection
note ISO 16016.
Drawn:
Verified:
2021-02-24 Pz/Str
2021-02-24 Pz
Replacing:
Replaced by:
KTR-N dated 2021-02-16
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Key Features

Noise reduction
Vibration damping
Different sizes
Electric motor compatibility
Foot flange compatibility
Oil cooler compatibility
Safe operation

Frequently Answers and Questions

What is the purpose of KTR Damping rods?

KTR Damping rods are designed to reduce noise levels and dampen vibrations produced by machinery during operation.

What types of damping rods are available?

The manual describes 4 types of damping rods: DSM, DSFL, DSFS, and DSK. They are compatible with different components like electric motors, foot flanges, and oil coolers.

How do I install KTR Damping rods with an electric motor?

The damping rods are installed by fitting the electric motor's feet onto them. The screws used must be the appropriate length and tightened to the specified torque.