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NHC Cylindrical hydraulic coupling
shaft coupling
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.



NHC series technical parameters:

Cylindrical hydraulic shaft coupling

model
d
D
L1
L
Mt
Mass
mm
mm
mm
mm
kNm
kg
NHC100
100
180
265
295
26
39
NHC110
110
196
285
315
35
49
NHC120
120
212
305
335
46
61
NHC130
130
228
330
360
58
75
NHC140
140
244
350
380
72
91
NHC150
150
260
375
405
89
109
NHC160
160
278
415
445
108
137
NHC170
170
296
435
465
130
163
NHC180
180
314
455
485
154
192
NHC190
190
332
475
505
181
223
NHC200
200
350
495
525
211
259
NHC210
210
366
520
550
244
295
NHC220
220
382
540
570
281
332
NHC230
230
398
560
590
321
372
NHC240
240
414
580
610
365
414
NHC250
250
430
600
635
412
464
NHC260
260
446
630
665
464
521
NHC270
270
462
650
685
519
575
NHC280
280
478
675
710
579
636
NHC290
290
494
695
730
644
697
NHC300
300
510
715
750
713
761
NHC310
310
526
740
785
786
846
NHC320
320
542
760
805
865
920
NHC330
330
558
785
830
948
1003
NHC340
340
574
805
850
1037
1085
NHC350
350
590
825
870
1131
1172
NHC360
360
606
855
900
1231
1277
model
d
D
L1
L
Mt
Mass
mm
mm
mm
mm
kNm
kg
NHC370
370
622
875
920
1337
1373
NHC380
380
638
895
940
1448
1474
NHC390
390
654
915
960
1565
1579
NHC400
400
670
935
980
1689
1690
NHC410
410
686
965
1010
1819
1824
NHC420
420
702
985
1030
1955
1945
NHC430
430
718
1010
1055
2098
2082
NHC440
440
734
1030
1075
2248
2215
NHC450
450
750
1050
1095
2405
2353
NHC460
460
766
1075
1120
2569
2508
NHC470
470
782
1095
1140
2740
2658
NHC480
480
798
1120
1165
2918
2826
NHC490
490
814
1140
1185
3105
2988
NHC500
500
830
1160
1205
3299
3157
NHC510
510
846
1185
1230
3501
3345
NHC520
520
862
1205
1250
3711
3527
NHC530
530
878
1230
1275
3929
3729
NHC540
540
894
1250
1295
4155
3924
NHC550
550
910
1270
1315
4391
4126
NHC560
560
926
1295
1340
4634
4350
NHC570
570
942
1315
1360
4887
4566
NHC580
580
958
1340
1385
5149
4806
NHC590
590
974
1360
1405
5420
5037
NHC600
600
990
1380
1425
5700
5274
NHC610
610
1006
1405
1470
5990
5615
NHC620
620
1022
1425
1490
6289
5871
NHC630
630
1038
1450
1515
6599
6154
NHC640
640
1054
1470
1535
6918
6426
NHC650
650
1070
1490
1555
7247
6705
NHC660
660
1086
1515
1580
7587
7015
NHC670
670
1102
1535
1600
7937
7311
NHC680
680
1118
1560
1625
8298
7639
NHC690
690
1134
1580
1645
8669
7952
NHC700
700
1150
1600
1665
9052
8274



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