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NHF Hydraulic Safety Coupling With Flange
NHF Hydraulic Safety Coupling With Flange
Product Detail

Features:

NGC hydraulic couplings are widely used in the connection between ship shaftings. They are assembled and disassembled hydraulically without thermal expansion. During installation, two thick outer sleeves and thin inner sleeves whose mating surfaces are conical surfaces are assembled together. High pressure oil is injected into the mating conical surfaces to form an oil film between the mating surfaces. Move on the inner sleeve, after moving a suitable distance, release the oil pressure, the outer sleeve shrinks and presses on the inner sleeve, and a strong pressure is established between the inner sleeve and the shaft; when working, the pressure will generate friction, so that the hydraulic coupling The device has a strong torque transmission capacity.


NGC hydraulic couplings can be divided into cylindrical hydraulic couplings (NHC) and flanged hydraulic couplings (NHF). The cylindrical hydraulic coupling connects two shafts without flanges; the flanged hydraulic coupling connects one shaft without flange and one shaft with flange.


NHF series technical parameters:

NHF.jpg

型号
d
D
L
L1
Df
Dc
R
t
n
ds
Mt
Mass
mm
mm
mm
mm
mm
mm
mm
mm

mm
kNm
kg
NHF100
100
170
215
40
265
230
9
21
8
19
26
26
NHF110
110
186
235
45
295
255
10
23
8
21
35
34
NHF120
120
202
250
50
315
275
11
25
8
23
46
42
NHF130
130
218
270
55
340
295
11
27
8
25
58
52
NHF140
140
234
290
60
355
310
12
29
10
24
72
64
NHF150
150
250
300
60
380
335
13
31
10
26
89
75
NHF160
160
266
320
65
405
355
14
33
10
28
108
91
NHF170
170
282
340
70
430
375
15
35
10
30
130
108
NHF180
180
298
355
75
440
390
15
37
12
29
154
124
NHF190
190
314
375
80
465
410
16
39
12
30
181
145
NHF200
200
330
390
80
490
435
17
41
12
32
211
167
NHF210
210
346
410
85
515
455
18
43
12
33
244
193
NHF220
220
362
425
90
535
475
19
45
12
35
281
219
NHF230
230
378
445
95
560
495
19
47
12
37
321
249
NHF240
240
394
465
100
580
515
20
49
12
38
365
282
NHF250
250
410
475
100
605
535
21
51
12
40
412
313
NHF260
260
426
495
105
630
560
22
53
12
42
464
352
NHF270
270
442
515
110
655
580
23
55
12
43
519
394
NHF280
280
458
530
115
675
600
23
57
12
45
579
434
NHF290
290
474
550
120
700
620
24
59
12
46
644
483
NHF300
300
490
565
120
720
640
25
61
12
48
713
528
NHF310
310
506
580
125
750
665
26
63
12
50
786
582
NHF320
320
522
600
130
770
685
27
65
12
51
865
638
NHF330
330
538
620
135
795
705
27
67
12
53
948
700
NHF340
340
554
635
140
815
725
28
69
12
54
1037
759
NHF350
350
570
650
140
840
745
29
71
12
56
1131
823
NHF360
360
586
670
145
835
750
30
73
16
50
1231
878

型号
d
D
L
L1
Df
Dc
R
t
n
ds
Mt
Mass
mm
mm
mm
mm
mm
mm
mm
mm

mm
kNm
kg
NHF370
370
602
690
150
855
770
31
75
16
51
1337
951
NHF380
380
618
705
155
880
790
31
77
16
53
1448
1026
NHF390
390
634
725
160
900
810
32
79
16
54
1565
1108
NHF400
400
650
740
160
930
835
33
81
16
56
1689
1194
NHF410
410
666
755
165
950
855
34
83
16
57
1819
1277
NHF420
420
682
775
170
975
875
35
85
16
58
1955
1376
NHF430
430
698
795
175
995
895
35
87
16
60
2098
1474
NHF440
440
714
810
180
1020
915
36
89
16
61
2248
1574
NHF450
450
730
825
180
1040
935
37
91
16
63
2405
1674
NHF460
460
746
845
185
1060
955
38
93
16
64
2569
1787
NHF470
470
762
860
190
1085
975
39
95
16
65
2740
1900
NHF480
480
778
880
195
1105
995
39
97
16
67
2918
2022
NHF490
490
794
900
200
1130
1015
40
99
16
68
3105
2156
NHF500
500
810
910
200
1150
1035
41
101
16
70
3299
2267
NHF510
510
826
930
205
1175
1055
42
103
16
71
3501
2411
NHF520
520
842
950
210
1195
1075
43
105
16
72
3711
2554
NHF530
530
858
965
215
1220
1095
43
107
16
74
3929
2698
NHF540
540
874
985
220
1240
1115
44
109
16
75
4155
2852
NHF550
550
890
1000
220
1270
1140
45
111
16
77
4391
3014
NHF560
560
906
1020
225
1290
1160
46
113
16
78
4634
3180
NHF570
570
922
1035
230
1310
1180
47
115
16
79
4887
3338
NHF580
580
938
1055
235
1335
1200
47
117
16
81
5149
3524
NHF590
590
954
1075
240
1355
1220
48
119
16
82
5420
3708
NHF600
600
970
1085
240
1380
1240
49
121
16
84
5700
3877
NHF610
610
986
1105
245
1400
1260
50
123
16
85
5990
4072
NHF620
620
1002
1125
250
1425
1280
51
125
16
86
6289
4284
NHF630
630
1018
1140
255
1445
1300
51
127
16
88
6599
4477
NHF640
640
1034
1160
260
1465
1320
52
129
16
89
6918
4692
NHF650
650
1050
1175
260
1495
1345
53
131
16
91
7247
4917
NHF660
660
1066
1190
265
1515
1365
54
133
16
92
7587
5128
NHF670
670
1082
1210
270
1540
1385
55
135
16
93
7937
5375
NHF680
680
1098
1230
275
1560
1405
55
137
16
95
8298
5618
NHF690
690
1114
1245
280
1585
1425
56
139
16
96
8669
5860
NHF700
700
1130
1260
280
1605
1445
57
141
16
98
9052
6097


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