KTR ROTEX GS User manual

Summarized assembly instructions
ROTEX®GS
ZR3
KTR-N
Sheet:
Edition:
45524 EN
1 of 7
4
Please observe protection
note ISO 16016.
Drawn:
2017-03-15 Shg/Ki
Replacing:
KTR-N dated 2017-01-02
Verified:
2017-03-15 Shg
Replaced by:

These mounting instructions are a summary of KTR N 45510 comprising details about the as-
sembly/disassembly of the intermediate shaft coupling ROTEX®GS ZR3 only. Please refer to
the instructions KTR N 45510 for general advice as well as advice on safety and danger before
starting up the coupling. According to EU standard 2014/34/EU, legal claims for warranty can-
not be allowed.
ROTEX®GS
Torsionally flexible intermediate shaft coupling type ZR3
ROTEX®GS, ZR3
1Technical data 2
2Assembly 4
2.1 Components of the couplings 4
2.2 Assembly of type ZR3 5
2.3 Displacements - alignment of the couplings 5
2.4 Critical whirling speed 7
Table of contents

Summarized assembly instructions
ROTEX®GS
ZR3
KTR-N
Sheet:
Edition:
45524 EN
2 of 7
4
Please observe protection
note ISO 16016.
Drawn:
2017-03-15 Shg/Ki
Replacing:
KTR-N dated 2017-01-02
Verified:
2017-03-15 Shg
Replaced by:
Intermediate shaft coupling type ZR3
Illustration 1: ROTEX®GS, type ZR3
Table 1: Dimensions
Size
Dimensions [mm]
dmin.
dmax.
DH
L
l3
l1
E
t1
e
DK
dR
LR
LZR=LR+2 x l3
Min.
Max.
Min.
Max.
14
5
15
30
36.0
14.5
18.5
13
7.5
10.5
33.3
28
72
2971
101
3000
19
8
20
40
49
17.5
25
16
8
14.5
46
40
98
2965
133
3000
24
10
28
55
59
22
30
18
10.5
20
57.5
50
121
3456
165
3500
28
14
38
65
67
25
35
20
11.5
25
73
60
137
3950
187
4000
38
18
45
80
83.5
33
45
24
15.5
30
83.5
70
169
3934
235
4000
42
22
50
95
93
36.5
50
26
18
32
93.5
80
180
3927
253
4000
48
22
55
105
100
39.5
56
28
18.5
36
105
100
202
3921
281
4000
Table 2: Torques
Size
Spider 1) (component 2)
Rated torque [Nm]
92 ShA-GS
98 ShA-GS
64 ShD-GS
72 ShD-GS
14
7.5
12.5
16
-
19
12
21
26
-
24
35
60
75
97 2)
28
95
160
200
260 2)
38
190
325
405
525 2)
42
265
450
560
728 2)
48
310
525
655
852 2)
1) Maximum torque of the coupling TKmax. = Rated torque of coupling TK rated. x 2; with clamping hubs 7.5 the transmittable friction torque
has to be observed (see table 3).
2) When using the spider 72 Sh-D, we recommend to use hubs made of steel.
1 Technical data

Summarized assembly instructions
ROTEX®GS
ZR3
KTR-N
Sheet:
Edition:
45524 EN
3 of 7
4
Please observe protection
note ISO 16016.
Drawn:
2017-03-15 Shg/Ki
Replacing:
KTR-N dated 2017-01-02
Verified:
2017-03-15 Shg
Replaced by:
Table 3: Torques and surface pressure of shell clamping hubs type 7.5
Size
14
19
24
28
38
42
48
Clamping screw M11)
M4
M6
M6
M8
M8
M10
M12
Dimension t1
7.5
8.0
10.5
11.5
15.5
18.0
18.5
Dimension e
10.5
14.5
20
25
30
32
36
Dimension ØDK
33.3
46.0
57.5
73.0
83.5
93.5
105
Tightening torque TA
[Nm]
2.90
10
10
25
25
49
86
Bore Ø
Transmittable torque of clamping hub [Nm]
Surface pressure [N/mm2]
Ø5
4.6
75.0
Ø6
5.5
62.5
Ø8
7.4
17.0
46.9
87.9
Ø10
9.2
21.2
21.2
37.5
70.3
54.9
Ø11
10.1
23.3
23.3
34.1
63.9
63.9
Ø12
11.0
25.4
25.4
46.7
31.3
58.6
45.7
74.7
Ø14
12.9
29.7
29.7
54.4
26.8
50.2
39.2
64.1
Ø15
13.8
31.8
31.8
58.3
25.0
46.9
36.6
59.8
Ø16
33.9
33.9
62.2
43.9
34.3
56.0
Ø19
40.3
40.3
73.9
73.9
37.0
28.9
47.2
35.0
Ø20
42.4
42.4
77.8
77.8
123.5
180
35.2
27.4
44.8
33.3
48.2
64.5
Ø22
46.7
85.5
85.5
135.8
198
24.9
40.8
30.2
43.8
58.7
Ø24
50.9
93.3
93.3
148.2
216
22.9
37.4
27.7
40.1
53.8
Ø25
53.0
97.2
97.2
154.3
225
22.0
35.9
26.6
38.5
51.6
Ø28
59.4
108.9
108.9
172.9
252
19.6
32.0
23.8
34.4
46.1
Ø30
116.6
116.6
185.2
270
29.9
22.2
32.1
43.0
Ø32
124.4
124.4
197.5
288
28.0
20.8
30.1
40.3
Ø35
136.1
136.1
216.1
315
25.6
19.0
27.5
36.9
Ø38
147.7
147.7
234.6
342
23.6
17.5
25.3
34.0
Ø40
155.5
246.9
360
15.8
22.9
30.7
Ø42
163.3
259.3
378
14.8
21.4
28.7
Ø45
174.9
277.8
405
14.8
21.4
28.7
Ø48
296.3
432
20.1
26.9
Ø50
308.7
450
19.3
25.8
Ø55
495
23.5
1 Technical data

Summarized assembly instructions
ROTEX®GS
ZR3
KTR-N
Sheet:
Edition:
45524 EN
4 of 7
4
Please observe protection
note ISO 16016.
Drawn:
2017-03-15 Shg/Ki
Replacing:
KTR-N dated 2017-01-02
Verified:
2017-03-15 Shg
Replaced by:
The coupling is generally supplied in individual parts. Before starting with the assembly, please inspect the cou-
pling for completeness and dimensional accuracy.

With vertical assembly of the intermediate shaft couplings a special distance washer of KTR
has to be inserted between the coupling hub at the bottom and the spider at the bottom.
Components of ROTEX®GS, intermediate shaft coupling type ZR3
Compo-
nent
Quantity
Description
1
2
Half shell clamping hub type 7.5 or 7.6
(component 1.1 is the basic body of the hub; component 1.2 is the clamping part)
2
2
Spider
3
1
Intermediate pipe
4
4
Cap screws DIN EN ISO 4762
Illustration 2: ROTEX®GS ZR3, size 14 - 48
2 Assembly
2.1 Components of the couplings

Summarized assembly instructions
ROTEX®GS
ZR3
KTR-N
Sheet:
Edition:
45524 EN
5 of 7
4
Please observe protection
note ISO 16016.
Drawn:
2017-03-15 Shg/Ki
Replacing:
KTR-N dated 2017-01-02
Verified:
2017-03-15 Shg
Replaced by:
Disassemble the cap screws of the half shell clamping hubs. Store the clamping components and cap screws
carefully.
Insert the spiders into the basic body of the hub.
Fit the intermediate pipe between the two basic bodies of the hubs. The tapping of the basic bodies of the
hubs should point to the same direction. Here dimension LRis the shaft distance dimension. The distance di-
mension E shown in table 1 has to be observed.
Insert the coupling between driving and driven side.
Mount the clamping components to the basic bodies of the hubs. Secure the half shell clamping hubs by tight-
ening the cap screws DIN EN ISO 4762 evenly at the tightening torques TAspecified in table 3. Make sure that
the gap between the basic body of the hub and the clamping components has roughly the same width.
Illustration 3: Assembly of type ZR3
Illustration 4: Gap between basic body of the hub and clamping
component
The displacement figures specified in table 4 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 4). 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 4 are maximum figures which must not arise in parallel. If radial
and angular displacements arise at the same time, the permissible displacement values may only be used
proportionally.
Please inspect with a dial gauge, ruler or feeler gauge whether the permissible displacement figures specified
in table 4 can be observed.
Angular displacements
Radial displacements
Axial displacements
Kr = (LZR - 2 • l1- E) • tan α
Lmax = L + Ka
Illustration 5: Displacements

2 Assembly
2.2 Assembly of type ZR3
2.3 Displacements - alignment of the couplings

Summarized assembly instructions
ROTEX®GS
ZR3
KTR-N
Sheet:
Edition:
45524 EN
6 of 7
4
Please observe protection
note ISO 16016.
Drawn:
2017-03-15 Shg/Ki
Replacing:
KTR-N dated 2017-01-02
Verified:
2017-03-15 Shg
Replaced by:
Examples of the displacement combina-
tions specified in illustration 6:
Example 1:
Kr= 30%
Kw= 70%
Example 2:
Kr= 60%
Kw= 40%
Illustration 6: Combi-
nations of displace-
ment
Ktotal = Kr+ Kw100 %
Table 4: Displacement figures –Intermediate shaft coupling
Size
Max. axial
displacement
Ka [mm]
Max. radial displacement
Kr [mm] 1)
Max. angular displacement
Kw [degree]
92
ShA-GS
98
ShA-GS
64
ShD-GS
72
ShD-GS
92
ShA-GS
98
ShA-GS
64
ShD-GS
72
ShD-GS
14
+1.0 / -1.0
16.6
14.9
13.3
-
1.0
0.9
0.8
-
19
+1.2 / -1.0
16.3
14.7
13.0
-
1.0
0.9
0.8
-
24
+1.4 / -1.0
16.1
14.5
12.9
11.3
1.0
0.9
0.8
0.7
28
+1.5 / -1.4
15.9
14.3
12.7
11.1
1.0
0.9
0.8
0.7
38
+1.8 / -1.4
15.5
13.9
12.4
10.8
1.0
0.9
0.8
0.7
42
+2.0 / -2.0
15.3
13.7
12.2
10.7
1.0
0.9
0.8
0.7
48
+2.1 / -2.0
15.0
13.5
12.0
10.5
1.0
0.9
0.8
0.7
1) Referring to an overall coupling length of LZR = 1000 mm.
The permissible displacement figures of the flexible ROTEX®GS couplings mentioned are general standard values taking into
account the load of the coupling up to the rated torque TKN of the coupling and an ambient temperature of + 30 °C.
2 Assembly
2.3 Displacements - alignment of the couplings

Summarized assembly instructions
ROTEX®GS
ZR3
KTR-N
Sheet:
Edition:
45524 EN
7 of 7
4
Please observe protection
note ISO 16016.
Drawn:
2017-03-15 Shg/Ki
Replacing:
KTR-N dated 2017-01-02
Verified:
2017-03-15 Shg
Replaced by:
Please observe the critical whirling speed of the coupling.
Example ZR3:
ROTEX®GS 19
Speed 1500 rpm
Max. permissible shaft
distance dimension
1700 mm
Illustration 7: Critical whirling speed of type ZR3
2 Assembly
2.4 Critical whirling speed