KTR-Group CLAMPEX 620 Manual

CLAMPEX®KTR 620
Operating/Assembly instructions
KTR-N
Sheet:
Edition:
40822 EN
1 of 11
9
Please observe protection
note ISO 16016.
Drawn:
2019-07-17 Wih/Jh
Replacing:
KTR-N dated 2017-05-17
Verified:
2019-07-18 Shg
Replaced by:
CLAMPEX®KTR 620
The CLAMPEX®clamping set is a frictionally engaged, detachable shaft-hub-connection for cylindrical
shafts and bores without feather key.
1Technical data 2
2Advice 6
2.1 General advice 6
2.2 General hazard warnings 6
2.3 Intended use 7
3Storage, transport and packaging 7
3.1 Storage 7
3.2 Transport and packaging 7
4Assembly 7
4.1 Components of clamping set CLAMPEX®KTR 620 8
4.2 Assembly of the clamping set 8
4.3 Disassembly of clamping set 10
5Disposal 10
6Spares inventory, customer service addresses 10
7Advice regarding the use in hazardous locations according to EU directive
2014/34/EU 11
Table of contents

CLAMPEX®KTR 620
Operating/Assembly instructions
KTR-N
Sheet:
Edition:
40822 EN
2 of 11
9
Please observe protection
note ISO 16016.
Drawn:
2019-07-17 Wih/Jh
Replacing:
KTR-N dated 2017-05-17
Verified:
2019-07-18 Shg
Replaced by:
Illustration 1: CLAMPEX®KTR 620
Table 1:
dxD
[mm]
Shaft
diame-
ter
dw
[mm]
Transmittable
torque
or axial force
Dimensions
[mm]
Clamping screws
DIN EN ISO 4017 - 10.9
total = 0.10
Surface
pressure of
clamping
set/
hollow shaft
PH
[N/mm2]
Weight
[~kg]
T
[Nm]
Fax
[kN]
B
B1
B2
d1
M
Length
z
TA
[Nm]
16 x 41
13
70
11
19.5
15.3
13.5
28
M6
12
3
13
254
0.1
14
90
13
18 x 44
15
80
11
19.5
15.3
13.5
30
M6
12
4
13
222
0.1
16
110
14
20 x 47
17
150
18
19.5
15.3
13.5
32
M6
12
4
13
274
0.1
18
175
19
24 x 50
19
165
17
22.0
18.22
16
36
M6
16
5
13
243
0.2
20
215
22
22
280
25
26 x 51.5
20
200
20
22
18.05
16
38
M6
16
5
13
238
0.2
22
260
24
24
330
28
30 x 60
24
370
33
24.0
20.26
18
44
M6
16
6
13
255
0.30
25
420
34
26
465
37
36 x 72
27
480
36
27.5
22.1
20
52
M8
20
5
30
250
0.5
30
650
43
33
835
51
38 x 72
27
480
36
27.5
22.1
20
52
M8
20
5
30
240
0.5
30
645
43
33
765
46
40 x 80
34
830
49
29.5
24.22
22
61
M8
20
6
30
209
0.6
44 x 80
35
770
44
192
37
880
48
50 x 90
38
1130
59
31.5
26.1
23.5
68
M8
20
8
30
212
0.80
40
1260
63
42
1400
67
55 x 100
42
1300
62
34.5
29
26
72
M8
20
8
30
195
1.1
45
1600
71
48
1900
79
60 x 110
48
1700
71
34.5
29.25
26
80
M8
20
9
30
191
1.3
50
1950
78
52
2160
83
62 x 110
48
1700
76
34.5
29.25
26
80
M8
20
9
30
189
1.3
50
1950
91
52
2160
83
68 x 115
50
1900
76
35
29.4
26
86
M8
20
9
30
206
1.3
55
2500
91
60
3150
105
75 x 138
55
2700
98
37.5
30.7
27
100
M10
25
10
60
211
2.3
60
3400
113
65
4100
126
80 x 141
60
3300
110
37.5
31.1
27
104
M10
25
10
60
215
2.3
65
4100
126
70
4950
141
1 Technical data

CLAMPEX®KTR 620
Operating/Assembly instructions
KTR-N
Sheet:
Edition:
40822 EN
3 of 11
9
Please observe protection
note ISO 16016.
Drawn:
2019-07-17 Wih/Jh
Replacing:
KTR-N dated 2017-05-17
Verified:
2019-07-18 Shg
Replaced by:
Illustration 1: CLAMPEX®KTR 620
Continuation: table 1
dxD
[mm]
Shaft
diame-
ter
dw
[mm]
Transmittable
torque
or axial force
Dimensions
[mm]
Clamping screws
DIN EN ISO 4017 - 10.9
total = 0.10
Surface
pressure of
clamping
set/
hollow shaft
PH
[N/mm2]
Weight
[~kg]
T
[Nm]
Fax
[kN]
B
B1
B2
d1
M
Length
z
TA
[Nm]
85 x 155
65
5500
169
44.5
38.2
34
114
M10
25
11
60
216
3.2
70
6400
183
75
7300
195
90 x 155
65
5500
169
44.5
38.2
34
114
M10
25
11
60
223
3.2
70
6600
189
75
7900
211
95 x 170
70
6200
177
50
43.45
39
124
M10
30
14
60
182
4.3
75
7400
197
80
8600
215
100 x 170
70
6200
177
50
43.45
39
124
M10
30
14
60
176
4.3
75
7400
197
80
8600
215
105 x 185
80
10500
263
56.5
49.1
43.5
136
M12
35
12
100
208
5.8
85
11800
278
90
13700
304
110 x 185
80
10500
263
56.5
49.1
43.5
136
M12
35
12
100
202
5.8
85
11800
278
90
13700
304
115 x 197
85
12500
294
60.5
53
48
147
M12
35
14
100
193
6.9
90
14100
313
95
16000
337
120 x 197
85
12500
294
60.5
53
48
147
M12
35
14
100
189
6.9
90
14100
313
95
16000
337
125 x 215
90
14500
322
61
53.4
48
158
M12
35
14
100
196
8.7
95
16600
349
100
18800
376
130 x 215
95
17000
358
61
53.4
48
158
M12
35
14
100
187
9.4
100
18400
368
110
22000
400
130 x 230
95
18400
387
66.5
75.5
51
165
M14
40
12
160
213
10.8
100
20800
416
110
26200
476
135 x 230
95
18400
387
66.5
57.5
51
165
M14
40
12
160
209
10.8
100
20800
416
110
26200
476
140 x 230
100
19900
398
67
57.8
51
172
M14
40
12
160
207
10.3
105
22200
423
115
27800
483
150 x 263
110
2700
491
71
62.2
55
186
M14
40
14
160
202
15.2
120
32000
533
125
36200
579
160 x 290
120
39000
650
78.5
68.5
61
198
M16
45
12
250
215
21.5
130
48000
738
135
51000
756
1 Technical data

CLAMPEX®KTR 620
Operating/Assembly instructions
KTR-N
Sheet:
Edition:
40822 EN
4 of 11
9
Please observe protection
note ISO 16016.
Drawn:
2019-07-17 Wih/Jh
Replacing:
KTR-N dated 2017-05-17
Verified:
2019-07-18 Shg
Replaced by:
Illustration 1: CLAMPEX®KTR 620
Continuation: table 1
dxD
[mm]
Shaft
diame-
ter
dw
[mm]
Transmittable
torque
or axial force
Dimensions
[mm]
Clamping screws
DIN EN ISO 4017 - 10.9
total = 0.10
Surface
pressure of
clamping
set/
hollow shaft
PH
[N/mm2]
Weight
[~kg]
T
[Nm]
Fax
[kN]
B
B1
B2
d1
M
Length
z
TA
[Nm]
165 x 290
120
39000
650
78.5
68.5
61
198
M16
45
12
250
212
21.5
130
48000
738
135
51000
756
170 x 300
130
46500
715
79
68.9
61
208
M16
50
14
250
212
22.5
140
53000
757
145
59000
814
175 x 300
130
46500
715
79
68.9
61
208
M16
50
14
250
209
22.5
140
53000
757
145
59000
814
180 x 320
140
66000
943
95
85
77.5
222
M16
50
16
250
210
32.7
15
76000
1013
155
83000
1071
185 x 320
140
66000
943
95
85
77.5
222
M16
50
16
250
207
32.7
150
76000
1013
155
83000
1071
190 x 340
150
82000
1093
98
87.7
77.5
238
M16
50
16
250
225
36.3
160
91000
1138
165
102000
1236
195 x 340
150
82000
1093
98
87.7
77.5
238
M16
50
16
250
222
36.3
160
91000
1138
165
102000
1236
200 x 340
150
82000
1093
98
87.7
77.5
238
M16
50
16
250
219
36.3
160
91000
1138
165
102000
1236
220 x 370
160
105000
1313
120
107.55
96.5
268
M20
60
15
480
205
53
170
120000
1435
180
138000
1533
240 x 405
170
125000
1471
123.5
111.1
98
288
M20
60
16
480
214
66
180
145000
1611
200
182000
1820
260 x 430
190
165000
1737
138
125.3
110.5
312
M20
60
16
480
202
82
200
190000
1900
220
238000
2164
280 x 460
210
220000
2095
152.5
140
121
334
M20
60
18
480
193
103
220
245000
2227
240
300000
2500
300 x 485
220
297000
2700
159
139.8
124
360
M24
70
16
840
205
120
230
330000
2870
250
399000
3192
320 x 520
240
331000
2758
160.5
141.6
124
380
M24
70
18
840
190
138
250
365000
2920
270
437000
3237
340 x 570
250
429000
3432
177.5
158.4
139
402
M24
70
18
840
195
189
260
469000
3608
280
556000
3971
1 Technical data

CLAMPEX®KTR 620
Operating/Assembly instructions
KTR-N
Sheet:
Edition:
40822 EN
5 of 11
9
Please observe protection
note ISO 16016.
Drawn:
2019-07-17 Wih/Jh
Replacing:
KTR-N dated 2017-05-17
Verified:
2019-07-18 Shg
Replaced by:
Illustration 1: CLAMPEX®KTR 620
Continuation: table 1
dxD
[mm]
Shaft
dia-
meter
dw
[mm]
Transmittable
torque or
axial force
Dimensions
[mm]
Clamping screws
DIN EN ISO 4017 - 10.9
total = 0.10
Surface
pressure of
clamping
set/
hollow shaft
PH
[N/mm2]
Weight
[~kg]
T
[Nm]
Fax
[kN]
B
B1
B2
d1
M
Length
z
TA
[Nm]
360 x 590
270
545000
4037
182
163
143
424
M24
70
20
840
216
207
280
592000
4229
290
694000
4786
390 x 650
290
704000
4855
191
169.2
148
454
M27
70
18
1250
216
249
300
760000
5067
320
879000
5494
420 x 670
320
827000
5169
208.4
186.4
166
486
M27
70
20
1250
184
285
330
876000
5309
350
1000000
5714
440 x 710
340
1117000
6571
220
198
179
506
M27
70
21
1250
222
343
350
1190000
6800
370
1345000
7270
460 x 750
360
1306000
7256
223
201
179
534
M27
70
21
1250
230
387
370
1386000
7492
390
1554000
7969
470 x 705
370
950000
5135
241.6
219.6
200
538
M27
70
21
1250
151
340
380
1000000
5263
400
1150000
5750
480 x 770
380
1557000
8195
247
223
201
551
M30
100
21
1650
223
449
390
1648000
8451
410
1818000
8868
500 x 820
400
1653000
8265
241
217
198
572
M30
100
24
1650
214
515
410
1725000
8415
430
1915000
8907
530 x 850
430
2048000
9526
262.3
238.3
216
606.5
M30
100
24
1650
208
585
440
2154000
9791
460
2374000
10322
560 x 885
450
2306000
10249
266
242
220
632
M30
100
24
1650
212
636
460
2419000
10517
480
2654000
11058
590 x 950
470
2735000
11638
281.5
257.5
236
664
M30
100
28
1650
211
805
480
2863000
11929
500
3128000
12512
620 x 960
500
3150000
12600
307
283
258
706
M30
100
28
1650
201
853
520
3396000
13062
540
3689000
13663
660 x 1020
530
3636000
13721
319
293
267
748
M33
130
28
2250
199
993
550
3942000
14335
570
4261000
14951
700 x 1085
560
4189000
14961
318.5
292.5
263
788
M33
130
28
2250
187
1112
580
4520000
15586
600
4863000
16210
750 x 1100
600
5281000
17603
346
320
280
850
M33
130
32
2250
202
1111
620
5672000
18297
650
6287000
19345
800 x 1230
640
6091000
19034
359
333
296
900
M33
130
32
2250
202
1589
660
6511000
19730
700
7394000
21126
1 Technical data

CLAMPEX®KTR 620
Operating/Assembly instructions
KTR-N
Sheet:
Edition:
40822 EN
6 of 11
9
Please observe protection
note ISO 16016.
Drawn:
2019-07-17 Wih/Jh
Replacing:
KTR-N dated 2017-05-17
Verified:
2019-07-18 Shg
Replaced by:
Tolerances, surfaces
Illustration 2:Tolerances and surfaces (example: CLAMPEX®KTR 620)
Tolerances for dW:
dW ≤Ø160=h6/H7
dW > Ø160=g6/H7
1) One proper turning process is
sufficient (Rz ≤16 µm).
2) Maximum permissible tolerance of
hub or shaft.
Please read through these operating/assembly instructions carefully before you mount the clamping set.
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 clamp-
ing set. The copyright for these operating/assembly instructions remains with KTR.
Warning of potentially explosive
atmospheres
This symbol indicates notes which may contribute to pre-
venting bodily injuries or serious bodily injuries that may
result in death caused by explosion.
STOP
Warning of personal injury
This symbol indicates notes which may contribute to pre-
venting bodily injuries or serious bodily injuries that may
result in death.
!
Warning of product damages
This symbol indicates notes which may contribute to pre-
venting material or machine damage.

General advice
This symbol indicates notes which may contribute to pre-
venting adverse results or conditions.
STOP
With assembly and disassembly of the clamping set 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 indica-
tions.
•All operations on and with the clamping set have to be performed taking into account "safety first".
•Please make sure to switch off the power pack before you perform your work on the clamping set.
•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.
1 Technical data
2 Advice
2.1 General advice
2.2 General hazard warnings

CLAMPEX®KTR 620
Operating/Assembly instructions
KTR-N
Sheet:
Edition:
40822 EN
7 of 11
9
Please observe protection
note ISO 16016.
Drawn:
2019-07-17 Wih/Jh
Replacing:
KTR-N dated 2017-05-17
Verified:
2019-07-18 Shg
Replaced by:
You may only assemble and disassemble the clamping set if you
•have carefully read through the operating/assembly instructions and understood them
•had technical training
•are authorized by your company
The clamping set may only be used in accordance with the technical data (see table 1). Unauthorized modifica-
tions on the clamping set 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 clamping set described in here corresponds to the technical status at the time of printing of these operat-
ing/assembly instructions.
The clamping sets are supplied in preserved condition and can be stored at a dry and roofed place for 6 - 9
months.
!
Humid storage rooms are not suitable.
Please make sure that condensation is not generated.
!
In order to avoid any injuries and any kind of damage please always make use of proper
transport and lifting equipment.
The clamping sets are packed differently each depending on size, quantity and kind of transport. Unless other-
wise contractually agreed, packaging will follow the in-house packaging specifications of KTR.
Generally the clamping set is supplied in mounted condition. Before assembly the clamping set has to be inspect-
ed for completeness
2 Advice
2.3 Intended use
3 Storage, transport and packaging
3.1 Storage
3.2 Transport and packaging
4 Assembly

CLAMPEX®KTR 620
Operating/Assembly instructions
KTR-N
Sheet:
Edition:
40822 EN
8 of 11
9
Please observe protection
note ISO 16016.
Drawn:
2019-07-17 Wih/Jh
Replacing:
KTR-N dated 2017-05-17
Verified:
2019-07-18 Shg
Replaced by:
Component
Quantity
Description
1
1
External ring (phosphated)
2
1
Internal ring
3
see table 1
Hexagon screws DIN EN ISO 4017 (phosphated) 1)
1) External and internal rings with QPQ coating: hexagon screws DIN EN ISO 4017 with Geomet coating
Illustration 3: CLAMPEX®KTR 620

Dirty or used clamping sets have to be disassembled and cleaned before assembly. After-
wards the taper surfaces and threads have to be lubricated with Molykote MoS2(see illustra-
tion 4). For re-lubrication please use the multi-purpose grease Molykote G Rapid plus, as an
example.
!
If hexagon screws with Geomet coating are used, the tappings of the external ring and the
hexagon screws must not be lubricated with Molykote.
!
Please inspect the taper surfaces of the clamping set for the lubrication specified.
•Please inspect shaft and hub fit for the tolerance specified (h6/H7 bzw. > Ø160 –g6/H7).
•The contact surfaces of hub/hollow shaft inside and the shaft have to be cleaned and degreased.
!
The contact surfaces of shaft and hub bore (hollow
shaft inside) must neither be lubricated nor oiled (see
illustration 4).
!
If hexagon screws with Geomet coating are used, the
tappings of the external ring and the hexagon screws
must not be lubricated with Molykote.
Illustration 4: Cleaning/lubricating the surfaces
!
When mounting the tapers of the clamping set free from grease the tabular and calculated
parameters deviate.
4 Assembly
4.1 Components of clamping set CLAMPEX®KTR 620
4.2 Assembly of the clamping set

CLAMPEX®KTR 620
Operating/Assembly instructions
KTR-N
Sheet:
Edition:
40822 EN
9 of 11
9
Please observe protection
note ISO 16016.
Drawn:
2019-07-17 Wih/Jh
Replacing:
KTR-N dated 2017-05-17
Verified:
2019-07-18 Shg
Replaced by:
•Lightly unscrew the clamping screws and fit the clamping set KTR 620 on the hub/hollow shaft outside (see
illustration 5 and 6).

The external surface of the hub (hollow shaft outside) can be lubricated in the area of the fit
of external clamping set.
!
Mount the shaft before tightening the clamping screws.
•Lightly hand-tighten the clamping screws and align the clamping set.
•Afterwards tighten the clamping screws gradually in several revolutions evenly one after another (see illustra-
tion 7) into the front screw-head sided surface of external and internal ring. Consequently correct clamping of
external and internal ring can be inspected visually (see illustration 8).
•When tightening the clamping screws the maximum screw tightening torque (see table 1) must not be exceed-
ed.

Protuding of the internal ring up to 0.5 mm is permissible with a QPQ coating.
Illustration 5: Shifting the clamping
set onto the hollow shaft
Illustration 6: Shifting onto the hub
Illustration 7: Tightening the
clamping screws
Illustration 8: Visual inspec-
tion

During assembly the hub is not displaced axially towards the shaft with KTR 620.
4 Assembly
4.2 Assembly of the clamping set

CLAMPEX®KTR 620
Operating/Assembly instructions
KTR-N
Sheet:
Edition:
40822 EN
10 of 11
9
Please observe protection
note ISO 16016.
Drawn:
2019-07-17 Wih/Jh
Replacing:
KTR-N dated 2017-05-17
Verified:
2019-07-18 Shg
Replaced by:
STOP
Driving components released or falling down may cause injury to persons or damage on the
machine.
Secure the driving components before disassembly.
•Unscrew all clamping screws evenly one after another in several revolutions. Do not fully unscrew the clamp-
ing screws out of the thread.
!
To reduce the clamping forces do not fully unscrew the clamping screws in no case.
•Screw separate screws into the pull-off threads of the internal ring (component 2) (see illustration 9). Select
the screws z1 and thread size M1 as per table 1.
•Tighten the screws evenly one after another by 1/4 revolution. Increase the pull-off torque gradually until the
external ring (component 1) and internal ring (component 2) are separated.
•Remove the hub/hollow shaft from the shaft.
•Pull the clamping set KTR 620 untightened from the hub/hollow shaft.
Illustration 9: Releasing the clamping set KTR 620
!
If these hints are not observed or operating conditions are not taken into account with the
selection of the clamping set, the operation of the clamping set may be affected.
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.
All clamping sets consist of metal. Any metal components have to be cleaned and disposed of by scrap metal.
A basic requirement to ensure the readiness for use of the drive components is a stock of some clamping sets 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.
4 Assembly
4.3 Disassembly of clamping set
5 Disposal
6 Spares inventory, customer service addresses

CLAMPEX®KTR 620
Operating/Assembly instructions
KTR-N
Sheet:
Edition:
40822 EN
11 of 11
9
Please observe protection
note ISO 16016.
Drawn:
2019-07-17 Wih/Jh
Replacing:
KTR-N dated 2017-05-17
Verified:
2019-07-18 Shg
Replaced by:
If used in hazardous locations the type and size of clamping set (for category 3 only) has to be selected such that
the difference between the peak torque of the machine including all operating parameters and the rated torque of
the clamping hub at least corresponds to a safety factor of s = 2.0.
CLAMPEX®clamping sets are not part of directive 2014/34/EU, since
•this product is a torsionally rigid, backlash-free, frictionally engaged connection with one or more taper clamp-
ing ring(s) by means of several screws.
(Clamping screws have to be secured, e. g. by means of a medium strength adhesive.)
•due to the design of clamping sets a fracture/failure is not likely (frictional heat is only caused by improper
assembly/tightening torques, i. e. not with intended use).
7 Advice regarding the use in hazardous locations according to EU directive
2014/34/EU