KTR CLAMPEX 203 / 206 Operating/Mounting Instructions

KTR CLAMPEX 203 / 206 is a friction-based detachable shaft-hub connection system, designed for cylindrical shafts and bores without keyways. It's ideal for applications where secure, repeatable shaft-to-hub connections are needed without the complexity of a keyway.

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CLAMPEX&reg; KTR 203 / KTR 206
Operating/Assembly instructions
CLAMPEX&reg; KTR 203
KTR-N
Sheet:
Edition:
40814 EN
1 of 10
9
CLAMPEX&reg; KTR 206
The CLAMPEX&reg; clamping set is a frictionally engaged, detachable shaft-hub-connection for cylindrical
shafts and bores without feather key.
Table of contents
1
Technical data
2
2
Advice
6
2.1
2.2
2.3
2.4
General advice
Safety and advice symbols
General hazard warnings
Proper use
6
6
6
6
Storage, transport and packaging
7
3.1
3.2
7
7
3
4
Storage
Transport and packaging
Assembly
7
4.1
4.2
4.3
7
8
9
Components of clamping set
Assembly of the clamping set
Disassembly of clamping set
5
Disposal
9
6
Spares inventory, customer service addresses
10
7
Advice regarding the use in
directive 2014/34/EU
10
Please observe protection
note ISO 16016.
Drawn:
Verified:
potentially explosive atmospheres according to EU
2022-05-31 Ka/Jh
2022-05-31 Pz
Replacing:
Replaced by:
KTR-N dated 2021-05-25
KTR-N
Sheet:
Edition:
CLAMPEX&reg; KTR 203 / KTR 206
Operating/Assembly instructions
1
40814 EN
2 of 10
9
Technical data
1) Dimension DN: For calculation of
hub see catalogue &quot;Drive Technology&quot;
2) These are the maximum screw
tightening torques. They can be
reduced by a maximum of 40 %
of the figures specified, with T,
Fax, PW and PN declining proportionally.
Illustration 1: Dimensions of CLAMPEX&reg; KTR 203
Table 1: CLAMPEX&reg; KTR 203
Clamping screws
DIN EN ISO 4762 - 12.9
total = 0.14
Dimensions
[mm]
dxD
B
B1
B2
B3
D1
M
18 x 47
19 x 47
20 x 47
22 x 47
24 x 50
25 x 50
28 x 55
30 x 55
32 x 60
35 x 60
38 x 65
40 x 65
42 x 75
45 x 75
48 x 80
50 x 80
55 x 85
60 x 90
65 x 95
70 x 110
75 x 115
80 x 120
85 x 125
90 x 130
95 x 135
100 x 145
110 x 155
120 x 165
130 x 180
140 x 190
150 x 200
160 x 210
170 x 225
34
34
34
34
34
34
34
34
34
34
34
34
41
41
41
41
41
41
41
50
50
50
50
50
50
56
56
56
64
68
68
68
78
28
28
28
28
28
28
28
28
28
28
28
28
33
33
33.5
33.5
33.5
33.5
33.5
40
40
40
40
40
40
44
44
44
52
54
54
54
64
22
22
22
22
22
22
22
22
22
22
22
22
25
25
24
24
24
24
24
29
29
29
29
29
29
31
31
31
39
39
39
39
49
17
17
17
17
17
17
17
17
17.5
17.5
17.5
17.5
20
20
20
20
20
20
20
24
24
24
24
24
24
25.5
25.5
26
34
34
34
34
44
53
53
53
53
56
56
61.4
61.4
67
67
72
72
84
84
89
89
94
99
104
119
124
129
134
139
144
154
164
174
189
199
209
219
234
M6
M6
M6
M6
M6
M6
M6
M6
M6
M6
M6
M6
M8
M8
M8
M8
M8
M8
M8
M10
M10
M10
M10
M10
M10
M12
M12
M12
M12
M14
M14
M14
M14
Please observe protection
note ISO 16016.
Drawn:
Verified:
Lengt
h
20
20
20
20
20
20
20
20
20
20
20
20
25
25
25
25
25
25
25
30
30
30
30
30
30
30
30
30
30
40
40
40
40
z No.
6
6
6
6
6
6
6
6
8
8
8
8
8
8
8
8
8
8
8
8
8
8
10
10
10
8
8
9
12
9
10
12
12
2022-05-31 Ka/Jh
2022-05-31 Pz
TA 2)
[Nm]
14
14
14
14
14
14
14
14
14
14
14
14
35
35
35
35
35
35
35
70
70
70
70
70
70
115
115
115
115
185
185
185
185
Transmittable
torque or axial
force
T
[Nm]
370
390
410
450
490
510
570
610
880
960
1000
1100
2200
2400
2500
2600
2900
3100
3400
6000
6400
6800
9000
9600
10200
12000
13000
16000
23000
25000
30000
38800
41300
Fax
[kN]
41
41
41
41
41
41
41
41
55
55
53
55
105
107
104
104
105
103
105
171
171
170
212
213
215
240
236
267
354
357
400
485
486
Replacing:
Replaced by:
Surface pressure between
clamping set
[N/mm2]
Shaft
Hub
PW
PN
356
136
337
136
320
136
290
136
265
127
255
127
227
116
212
115
261
139
238
139
210
123
208
128
331
185
314
189
288
173
276
172
254
165
228
152
213
146
271
172
252
164
235
157
275
187
262
181
250
176
250
172
224
159
227
165
212
153
199
147
208
156
236
180
172
130
Weight
~ kg
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.4
0.3
0.4
0.4
0.6
0.6
0.7
0.7
0.7
0.8
0.8
1.5
1.6
1.7
1.8
1.9
2.0
2.6
2.8
3.6
4.4
4.9
5.2
5.6
6.9
KTR-N dated 2021-05-25
KTR-N
Sheet:
Edition:
CLAMPEX&reg; KTR 203 / KTR 206
Operating/Assembly instructions
1
40814 EN
3 of 10
9
Technical data
Page 2 continued:
1) Dimension DN: For calculation of
hub see catalogue &quot;Drive Technology&quot;
2) These are the maximum screw
tightening torques. They can be
reduced by a maximum of 40 %
of the figures specified, with T,
Fax, PW and PN declining proportionally.
Illustration 1: Dimensions of CLAMPEX&reg; KTR 203
Table 1: CLAMPEX&reg; KTR 203
Clamping screws
DIN EN ISO 4762 - 12.9
total = 0.14
Dimensions
[mm]
dxD
B
B1
B2
B3
D1
M
180 x 235
190 x 250
200 x 260
220 x 285
240 x 305
260 x 325
280 x 355
300 x 375
320 x 405
340 x 425
360 x 455
380 x 475
400 x 495
78
78
78
88
88
88
102
102
121
121
138
138
138
64
64
64
72
72
72
84
84
101
101
116
116
116
49
49
49
57
57
57
66
66
81
81
93
93
93
44
43.5
43.5
50
50
50
60
60
74
74
86
86
86
244
259
269
294
314
334
364
384
414
434
464
484
504
M14
M14
M14
M16
M16
M16
M18
M18
M20
M20
M22
M22
M22
Please observe protection
note ISO 16016.
Drawn:
Verified:
Lengt
h
40
40
40
40
40
40
60
60
74
74
86
86
86
z No.
12
15
15
12
15
18
16
18
18
21
18
21
21
2022-05-31 Ka/Jh
2022-05-31 Pz
TA 2)
[Nm]
185
185
185
290
290
290
400
400
580
580
780
780
780
Transmittable torque or axial force
T
[Nm]
43700
57700
60700
77300
105400
137000
160300
193200
269300
333800
375700
462700
487000
Fax
[kN]
486
607
607
703
878
1054
1145
1288
1683
1964
2087
2435
2435
Replacing:
Replaced by:
Surface pressure between
clamping set
[N/mm2]
Shaft
Hub PN
PW
163
125
195
148
185
142
169
131
194
153
215
172
181
143
190
152
189
149
207
166
179
141
198
158
188
152
Weight
~ kg
8.5
9.0
9.6
13.4
14.5
16.1
23.4
25.3
36.9
39.0
54.0
56.2
58.9
KTR-N dated 2021-05-25
KTR-N
Sheet:
Edition:
CLAMPEX&reg; KTR 203 / KTR 206
Operating/Assembly instructions
1
40814 EN
4 of 10
9
Technical data
1) Dimension DN: For calculation of
hub see catalogue &quot;Drive Technology&quot;
2) These are the maximum screw
tightening torques. They can be
reduced by a maximum of 40 %
of the figures specified, with T,
Fax, PW and PN declining proportionally.
Illustration 2: Dimensions of CLAMPEX&reg; KTR 206
Table 2: CLAMPEX&reg; KTR 206
Clamping screws
DIN EN ISO 4762 - 12.9
total = 0.14
Dimensions
[mm]
dxD
B
B1
B2
B3
D1
M
18 x 47
19 x 47
20 x 47
22 x 47
24 x 50
25 x 50
28 x 55
30 x 55
32 x 60
35 x 60
38 x 65
40 x 65
42 x 75
45 x 75
48 x 80
50 x 80
55 x 85
60 x 90
65 x 95
70 x 110
75 x 115
80 x 120
85 x 125
90 x 130
95 x 135
100 x 145
110 x 155
120 x 165
130 x 180
140 x 190
150 x 200
160 x 210
34
34
34
34
34
34
34
34
34
34
34
34
41
41
41
41
41
41
41
50
50
50
50
50
50
56
56
56
64
68
68
68
28
28
28
28
28
28
28
28
28
28
28
28
33
33
33.5
33.5
33.5
33.5
33.5
40
40
40
40
40
40
44
44
44
52
54
54
54
22
22
22
22
22
22
22
22
22
22
22
22
25
25
24
24
24
24
24
29
29
29
29
29
29
31
31
31
39
39
39
39
17
53
17
53
17
53
17
53
17
56
17
56
17 61.4
17 61.4
17.5 67
17.5 67
17.5 72
17.5 72
20
84
20
84
20
89
20
89
20
94
20
99
20 104
24 119
24 124
24 129
24 134
24 139
24 144
25.5 154
25.5 164
26 174
34 189
34 199
34 209
34 219
M6
M6
M6
M6
M6
M6
M6
M6
M6
M6
M6
M6
M8
M8
M8
M8
M8
M8
M8
M10
M10
M10
M10
M10
M10
M12
M12
M12
M12
M14
M14
M14
Please observe protection
note ISO 16016.
Drawn:
Verified:
Lengt
h
20
20
20
20
20
20
20
20
20
20
20
20
25
25
25
25
25
25
25
30
30
30
30
30
30
30
30
30
30
40
40
40
z No.
6
6
6
6
6
6
6
6
8
8
8
8
8
8
8
8
8
8
8
8
8
8
10
10
10
8
8
9
12
9
10
12
2022-05-31 Ka/Jh
2022-05-31 Pz
TA 2)
[Nm]
17
17
17
17
17
17
17
17
17
17
17
17
41
41
41
41
41
41
41
83
83
83
83
83
83
145
145
145
145
230
230
230
Transmittable torque or axial force
T
[Nm]
290
300
320
350
390
400
450
490
700
760
820
870
1700
1800
1900
2000
2200
2400
2600
4600
5000
5300
7000
7400
7800
9700
10700
13100
19000
20500
24500
31300
Fax
[kN]
32
32
32
32
32
32
32
33
44
43
43
44
81
80
79
80
80
80
80
131
133
133
165
164
164
194
195
218
292
293
327
391
Replacing:
Replaced by:
Surface pressure between
clamping set
[N/mm2]
Shaft
Hub PN
PW
279
107
259
105
250
106
226
106
211
101
200
100
179
91
170
93
207
111
188
110
172
101
165
101
256
143
236
141
219
131
212
133
193
125
177
118
163
112
208
132
196
128
183
122
214
146
202
140
191
134
202
139
184
131
186
135
175
127
163
120
170
127
191
145
Weight
~ kg
0.3
0.3
0.3
0.3
0.3
0.3
0.4
0.3
0.3
0.4
0.5
0.4
0.7
0.7
0.8
0.8
0.9
0.9
0.9
1.6
1.7
1.9
2.0
2.0
2.3
2.8
3.1
3.2
4.6
5.0
5.2
5.6
KTR-N dated 2021-05-25
KTR-N
Sheet:
Edition:
CLAMPEX&reg; KTR 203 / KTR 206
Operating/Assembly instructions
1
40814 EN
5 of 10
9
Technical data
Page 4 continued:
1) Dimension DN: For calculation of
hub see catalogue &quot;Drive Technology&quot;
2) These are the maximum screw
tightening torques. They can be
reduced by a maximum of 40 %
of the figures specified, with T,
Fax, PW and PN declining proportionally.
Illustration 2: Dimensions of CLAMPEX&reg; KTR 206
Table 2: CLAMPEX&reg; KTR 206
Clamping screws
DIN EN ISO 4762 - 12.9
total = 0.14
Dimensions
[mm]
dxD
B
B1
B2
B3
D1
M
170 x 225
180 x 235
190 x 250
200 x 260
220 x 285
240 x 305
260 x 325
280 x 355
300 x 375
320 x 405
340 x 425
360 x 455
380 x 475
400 x 495
78
78
78
78
88
88
88
102
102
121
121
138
138
138
64
64
64
64
72
72
72
84
84
101
101
116
116
116
49
49
49
49
57
57
57
66
66
81
81
93
93
93
44
44
43.5
43.5
50
50
50
60
60
74
74
86
86
86
234
244
259
269
294
314
334
364
384
414
434
464
484
504
M14
M14
M14
M14
M16
M16
M16
M18
M18
M20
M20
M22
M22
M22
Lengt
h
40
40
40
40
40
40
40
50
50
50
50
60
60
60
z No.
12
12
15
15
12
15
18
16
18
18
21
18
21
21
TA 2)
[Nm]
230
230
230
230
360
360
360
480
480
690
690
930
930
930
Transmittable torque or axial force
T
[Nm]
33200
35000
46500
49000
57100
77800
101200
113300
136500
191000
237000
264000
325000
342000
Fax
[kN]
391
389
489
490
519
648
778
809
910
1194
1394
1467
1711
1710
Surface pressure between
clamping set
[N/mm2]
Shaft
Hub PN
PW
139
105
130
100
157
119
149
115
125
97
143
113
159
127
128
101
134
107
134
106
147
118
126
99
139
111
132
107
Weight
~ kg
6.5
8.5
9.0
9.6
14.0
15.1
16.2
25.6
25.5
37.9
38.3
53.3
57.6
60.3
Tolerances, surfaces
Illustration 3:Tolerances and surfaces (example: CLAMPEX&reg; KTR 206)
Please observe protection
note ISO 16016.
Drawn:
Verified:
2022-05-31 Ka/Jh
2022-05-31 Pz
1) One proper turning process is sufficient
(Rz ≤ 16 &micro;m).
2) Highest permissible tolerance of hub or shaft.
Replacing:
Replaced by:
KTR-N dated 2021-05-25
CLAMPEX&reg; KTR 203 / KTR 206
Operating/Assembly instructions
2
KTR-N
Sheet:
Edition:
40814 EN
6 of 10
9
Advice
2.1 General advice
Please read through these operating/assembly instructions carefully before you mount the clamping set.
Pay special attention to the safety instructions!
The operating/assembly instructions are part of your product. Please store them carefully and close to the clamping set. The copyright for these operating/assembly instructions remains with KTR.
2.2 Safety and advice symbols
STOP
!

Warning of potentially explosive atmospheres
This symbol indicates notes which may contribute to preventing bodily injuries or serious bodily injuries that may
result in death caused by explosion.
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 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. Make absolutely sure to read through and observe the following safety indications.
• All operations on and with the clamping set 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 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.
• Secure the rotating drive components against accidental contact. Provide for the necessary protection devices
and covers.
2.4 Proper use
You may only assemble and disassemble the clamping set 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 clamping set may only be used in accordance with the technical data (see chapter 1). Unauthorized modifications 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 operating/assembly instructions.
Please observe protection
note ISO 16016.
Drawn:
Verified:
2022-05-31 Ka/Jh
2022-05-31 Pz
Replacing:
Replaced by:
KTR-N dated 2021-05-25
CLAMPEX&reg; KTR 203 / KTR 206
Operating/Assembly instructions
3
KTR-N
Sheet:
Edition:
40814 EN
7 of 10
9
Storage, transport and packaging
3.1 Storage
The clamping sets are supplied in preserved condition and can be stored in a dry and roofed place for 6 - 9 months.
Humid storage rooms are not suitable.
Make sure that condensation is not generated.
!
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 clamping sets are packed differently each depending on size, quantity and kind of transport. Unless otherwise contractually agreed, packaging will follow the in-house packaging specifications of KTR.
4
Assembly
Generally the clamping set is supplied in mounted condition. Before assembly the clamping set has to be inspected for completeness.
4.1 Components of clamping set
Components of clamping set CLAMPEX&reg; KTR 203 / KTR 206
Component
1
2
3
Quantity
1
1
see table 1 and 2
Description
Outer ring (slit)
Inner ring (slit)
Cap screw DIN EN ISO 4762
Illustration 4: CLAMPEX&reg; KTR 203
!

Illustration 5: CLAMPEX&reg; KTR 206
With assembly none of the extraction threads of the internal ring (component 2) must be
congruent with the slot of the external ring (component 1).
Dirty or used clamping sets have to be disassembled and cleaned before assembly. Afterwards apply thin oil lightly (e. g. Ballistol Universal oil or Kl&uuml;ber Quietsch-Ex).
Please observe protection
note ISO 16016.
Drawn:
Verified:
2022-05-31 Ka/Jh
2022-05-31 Pz
Replacing:
Replaced by:
KTR-N dated 2021-05-25
CLAMPEX&reg; KTR 203 / KTR 206
Operating/Assembly instructions
4
KTR-N
Sheet:
Edition:
40814 EN
8 of 10
9
Assembly
4.2 Assembly of the clamping set
• Inspect the fit of shaft and hub for the tolerance specified (see illustration 3).
• Clean the surfaces of the clamping set marked in illustration 6 as well as of shaft and hub and afterwards
apply thin oil lightly (e. g. Ballistol Universal oil or Kl&uuml;ber Quietsch-Ex).
Illustration 6: Cleaning and lubricating the contact surfaces (example: CLAMPEX&reg; KTR 206)
!
Oils and greases with molybdenum disulphide or other high-pressure additives, additives of
Teflon and silicone as well as internal lubricants reducing the coefficient of friction significantly must not be used. When mounting the tapers of the clamping set free from oil the tabular and calculated parameters deviate.
• Unscrew the clamping screws by several revolutions so that the external ring detaches slightly from the internal ring.
• To facilitate the assembly fasten the internal and external ring by two clamping screws via the extraction
threads (see illustration 7). Afterwards insert the clamping set KTR 203 / KTR 206 between shaft and hub.
Illustration 7: Fastening the clamping set (example: CLAMPEX&reg; KTR 206)
• Remove the clamping screws used for fastening and screw them into the thread of the external ring.
• Hand-tighten the clamping screws first and align the internal clamping ring with the hub.
• Make sure with KTR 206 that the internal ring (component 2) for axial fastening fits the hub evenly.
• Tighten the clamping screws evenly crosswise gradually to the tightening torque specified in table 1 or 2.
Repeat this process until all clamping screws have reached the tightening torque.

During assembly the hub is displaced axially to the shaft with KTR 203.
Please observe protection
note ISO 16016.
Drawn:
Verified:
2022-05-31 Ka/Jh
2022-05-31 Pz
Replacing:
Replaced by:
KTR-N dated 2021-05-25
CLAMPEX&reg; KTR 203 / KTR 206
Operating/Assembly instructions
4
KTR-N
Sheet:
Edition:
40814 EN
9 of 10
9
Assembly
4.3 Disassembly of clamping set
STOP
Driving components released or falling down may cause injury to persons or damage on the
machine.
Secure the driving components before disassembly.
• Untighten and unscrew all clamping screws evenly one after another.
• Screw the clamping screws into the extraction threads of the internal ring (component 2) (see illustration 8 and
9).
• Tighten the clamping screws evenly crosswise by 1/4 revolution. Increase the extraction torque gradually until
the external ring (component 1) and internal ring (component 2) are separated.
• Take out the clamping set released between shaft and hub.
Illustration 8: Releasing the clamping set KTR 203
!

5
Illustration 9: Releasing the clamping set KTR 206
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.
Used clamping sets have to be disassembled and cleaned before assembly. Afterwards
apply thin oil lightly (e. g. Ballistol Universal oil or Kl&uuml;ber Quietsch-Ex).
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.
All clamping sets consist of metal. Any metal components have to be cleaned and disposed of by scrap metal.
Please observe protection
note ISO 16016.
Drawn:
Verified:
2022-05-31 Ka/Jh
2022-05-31 Pz
Replacing:
Replaced by:
KTR-N dated 2021-05-25
CLAMPEX&reg; KTR 203 / KTR 206
Operating/Assembly instructions
6
KTR-N
Sheet:
Edition:
40814 EN
10 of 10
9
Spares inventory, customer service addresses
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.

7
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.
Advice regarding the use in
rective 2014/34/EU
potentially explosive atmospheres according to EU di-
If used in potentially explosive atmospheres 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&reg; 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 clamping ring(s) ensured by 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 generated by improper
assembly/tightening torques, i. e. with improper use).
Please observe protection
note ISO 16016.
Drawn:
Verified:
2022-05-31 Ka/Jh
2022-05-31 Pz
Replacing:
Replaced by:
KTR-N dated 2021-05-25
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Key features

Friction-based connection
Detachable
Keywayless
High torque transmission
High axial force transmission
Easy assembly and disassembly

Frequently asked questions

This system is designed for cylindrical shafts and bores without keyways.

Tighten the screws evenly crosswise, gradually to the tightening torque specified in the table 1 or 2 (depending on the CLAMPEX model).

No, oils and greases with molybdenum disulphide, Teflon, silicone, or internal lubricants that significantly reduce friction should not be used. Use thin oil like Ballistol Universal oil or Klüber Quietsch-Ex.