Coupling selection

The selection of the coupling size and type will be dependant on several factors.The first requirement must obviously be to choose a unit of adequate size of transmit the maximum torque and for this purpose it is advisable to use the actual available power of the driving machine, unless this latter is known not be exceeded.

 

Having determined the maximum HP or KW to be transmitted, this is divided by the speed to give the HP or KW / rpm: the result can be multipied with F1 – F2 – F3 service factors; by comparison with the tecnical data, a selection can be made from any of the various coupling types; if the resulting specific rating falls between two coupling size, the larger should be selected.

 

A final check should be made to ensure that the maximum hub bore dimension is adeguate for the shaft. Providing, after the selection is made, other factors such as weight, torsional stiffness etc., as given in the appropriate tables are acceptable then a standard unit can be selected. if not consult our tecnical department who are always willing to give advice and produce special designs.

 

COUPLING SELECTION ACCORDING TO KW AND Rpm

 

The nominal power ratings in KW shown in table are valid for:

  • shock – free operation;
  • up to 25 starts per hour;
  • ambient temperature from -30° C to + 85° C;
  • properly aligned shafts.

 

For differing operating conditions the service factors F1 – F2 – F3 should be taken into account with reference to mechanical stress.

 

 
 
RPM (1/min)
100
200
400
500
800
1000
1450
1600
1750
2000
2950
3500
5000
Type 
TKN(Nm)
KW
68
34
0,36
0,71
1,4
1,8
2,8
3,6
5,1
5,7
6,2
7,1
10,5
12,5
17,5
80
60
0,63
1,3
2,5
3,1
5
6,3
9
10
11
12,5
18,5
22
31
95
100
1,1
2,1
4,2
5,2
8,4
10,5
15
16,5
18,5
21
31
37
52
110
160
1,7
3,4
6,7
8,4
13,5
16,7
24
27
29
34
49
59
84
125
240
2,5
5
10
12,5
20
25
35
40
44
50
74
88
125
140
360
3,8
7,5
15
19
30
38
54
60
66
75
110
132
 
160
560
5,9
11,5
23,5
29,5
47
58
84
94
103
117
172
205
 
180
880
9,2
18,5
37
46
74
92
130
145
160
185
270
320
 
200
1340
14
28
56
70
110
140
200
225
245
280
410
 
225
2000
21
42
84
105
165
210
300
335
365
420
615
 
250
2800
29
59
115
145
235
295
420
470
510
585
 
280
3900
41
82
165
205
325
410
585
650
715
815
 
315
5500
58
115
230
290
460
575
825
920
1010
1150
 
350
7700
80,5
160
320
400
645
800
1150
1290
1410
 
400
10300
108
215
430
540
860
1080
1540
1730
 
440
13500
140
285
565
710
1130
1410
2020
 
480
16600
175
350
695
870
1390
1750
 
520
21200
220
445
890
1110
1775
2220
 
560
29000
305
605
1210
1520
2430
3030
 
610
38000
400
795
1590
1990
3200
4000
 
660
49000
510
1050
2050
2550
4100
5100