Series NNU-Double Row Cylindrical Roller Bearings OEM/ODM

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Series NNU-Double Row Cylindrical Roller Bearings

  • NNU...W33
  • NNU...K/W33
  • NN...W33
  • NN...K/W33
  • Design Variants
  • Misalignment
  • Cage
  • Tolerance
  • Internal clearance
Model 
Dimensions Rated load Extreme speed Bearing dimensions Weight
d
D
B
r1 r2 min Dynamic load Static load Grease lubrication Oil lubrication E F Bs ≈ S ≈
NNU 4920 M/W33
100
140
40
1.1 129 255 5300 6300 -- 113 6.5 2 1.9
NNU 4920 K/M/W33
100
140
40
1.1 129 255 5300 6300 -- 113 6.5 2 1.9
NNU 4120 K/M/W33
100
165
65
1.1 358 570 3600 4800 -- 117 5.5 1.8 5.5
NNU 4120 M/W33
100
165
65
1.1 358 570 3600 4800 -- 117 5.5 1.8 5.5
NNU 4921 M/W33
105
145
40
1.1 129 260 5300 6300 -- 118 6.5 1.5 2
NNU 4921 K/M/W33
105
145
40
1.1 129 260 5300 6300 -- 118 6.5 1.5 2
NNU 4121 K/M/W33
105
175
69
2 413 670 3400 4300 -- 124 5.5 1.7 6.7
NNU 4121 M/W33
105
175
69
1.1 413 670 3400 4300 -- 124 5.5 1.7 6.7
NNU 4922 M/W33
110
150
40
1.1 132 270 5000 6000 -- 123 6.5 1.5 2.1
NNU 4922 K/M/W33
110
150
40
1.1 132 270 5000 6000 -- 123 6.5 1.5 2.1
NNU 4122 K/M/W33
110
180
69
2 418 710 3200 4300 -- 129 5.5 1.7 6.95
NNU 4122 M/W33
110
180
69
1.1 418 710 3200 4300 -- 124 5.5 1.7 6.95
NNU 4924 M/W33
120
165
45
1.1 176 340 4500 5300 -- 134.5 6.5 1.5 2.76
NNU 4924 K/M/W33
120
165
45
1.1 176 340 4500 5300 -- 134.5 6.5 1.5 2.76
NNU 4124 K/M/W33
120
200
80
1.1 523 865 3000 3800 -- 141 5.5 1 11
NNU 4926 M/W33
130
180
50
1.5 190 390 4000 4800 -- 146 6.5 2 3.79
NNU 4926 K/M/W33
130
180
50
1.5 190 390 4000 4800 -- 146 6.5 2 3.79
NNU 4126 K/M/W33
130
210
80
2 561 965 2800 3600 -- 151 8.3 2.1 10.7
NNU 4126 M/W33
130
210
80
2 561 965 2800 3600 -- 151 8.3 2.1 10.7
NNU 4928 M/W33
140
190
50
1.5 190 400 3800 4500 -- 156 6.5 2 4.11
NNU 4928 K/M/W33
140
190
50
1.5 190 400 3800 4500 -- 156 6.5 2 4.11
NNU 4128 K/M/W33
140
225
85
2.1 627 1040 2600 3400 -- 161 8.3 2.4 13
NNU 4128 M/W33
140
225
85
2.1 627 1040 2600 3400 -- 161 8.3 2.4 13
NNU 4930 M/W33
150
210
60
2 325 655 3600 4300 -- 168.5 6.5 2.3 6.2
NNU 4930 K/M/W33
150
210
60
2 325 655 3600 4300 -- 168.5 6.5 2.3 6.2
NNU 4130 K/M/W33
150
250
100
2.1 748 1290 2400 3000 -- 177 8.3 4.3 18
NNU 4130 M/W33
150
250
100
2.1 748 1290 2400 3000 -- 177 8.3 4.3 18
NNU 4932 M/W33
160
220
60
2 335 680 3400 4000 -- 178.5 6.5 2.3 6.55
NNU 4932 K/M/W33
160
220
60
2 335 680 3400 4000 -- 178.5 6.5 2.3 6.55
NNU 4132 K/M/W33
160
270
109
2.1 935 1530 2200 2800 -- 188 8.3 4.1 25
NNU 4132 M/W33
160
270
109
2.1 935 1530 2200 2800 -- 188 8.3 4.1 25
NNU 4934 M/W33
170
230
60
2 340 695 3200 3800 -- 188.5 6.5 2.3 6.85
NNU 4934 K/M/W33
170
230
60
2 340 695 3200 3800 -- 188.5 6.5 2.3 6.85
NNU 4131 K/M/W33
170
280
109
2.1 968 1630 2000 2600 -- 198 8.3 4.1 26
NNU 4131 M/W33
170
280
109
2.1 968 1630 2000 2600 -- 198 8.3 4.1 26
NNU 4936 M/W33
180
250
69
2 405 850 3000 3600 -- 202 9.5 2.6 10.2
NNU 4936 K/M/W33
180
250
69
2 405 850 3000 3600 -- 202 9.5 2.6 10.2
NNU 4136 K/M/W33
180
300
118
3 1080 1830 1900 2400 -- 211 11.1 3.9 3
NNU 4136 M/W33
180
300
118
3 1080 1830 1900 2400 -- 211 11.1 3.9 3
NNU 4938 M/W33
190
260
69
2 405 880 2800 3400 -- 212 9.5 2.6 10.6
NNU 4938 K/M/W33
190
260
69
2 405 880 2800 3400 -- 212 9.5 2.6 10.6
NNU 4138 K/M/W33
190
320
128
3 1320 2200 1800 2400 -- 222 11.1 4 41
NNU 4138 M/W33
190
320
128
3 1320 2200 1800 2400 -- 222 11.1 4 41
NNU 4840 M/W33
200
250
50
1.1 242 600 2400 2600 -- 216 11.1 2.6 5.75
NNU 4840 K/M/W33
200
250
50
1.1 242 600 2400 2600 -- 216 11.1 2.6 5.75
NNU 4940 M/W33
200
280
80
2.1 490 1040 2600 3200 -- 225 12.2 3.4 14.9
NNU 4940 K/M/W33
200
280
80
2.1 490 1040 2600 3200 -- 225 12.2 3.4 14.9
NNU 4140 M/W33
200
340
140
3 1470 2550 1700 2200 -- 235 11.1 5.3 51
NNU 4944 M/W33
220
300
80
2.1 510 1140 2400 3000 -- 245 12.2 3.4 16.2
NNU 4944 K/M/W33
220
300
80
2.1 510 1140 2400 3000 -- 245 12.2 3.4 16.2
NNU 4144 K/M/W33
220
370
150
4 1650 2900 1500 2000 -- 258 13.9 5.5 65
NNU 4144 M/W33
220
370
150
4 1650 2900 1500 2000 -- 258 13.9 5.5 65
NNU 4848 K/M/W33
240
300
60
1.1 358 930 2200 2400 -- 259 11.1 2.8 9.9
NNU 4848 M/W33
240
300
60
1.1 358 930 2200 2400 -- 259 11.1 2.8 9.9
NNU 4948 M/W33
240
320
80
2.1 530 1200 2200 2800 -- 265 12 3.4 17.4
NNU 4948 K/M/W33
240
320
80
2.1 530 1200 2200 2800 -- 265 12 3.4 17.4
NNU 4148 K/M/W33
240
400
160
4 1980 3650 1400 1800 -- 282 13.9 4.6 85
NNU 4148 M/W33
240
400
160
4 1980 3650 1400 1800 -- 282 13.9 4.6 85
NNU 4952 M/W33
260
360
100
2.1 750 1700 2000 2600 -- 292 15 4 60.2
NNU 4952 K/M/W33
260
360
100
2.1 750 1700 2000 2600 -- 292 15 4 30.2
NNU 4052 K/M/W33
260
400
104
4 1650 3150 1500 1800 -- 295 13.9 5.5 63.5
NNU 4052 M/W33
260
400
140
4 1650 3150 1500 1800 -- 295 13.9 5.5 63.5
NNU 4152 K/M/W33
260
440
180
4 2200 3900 1300 1600 -- 306 13.9 5.1 110
NNU 4856 K/M/W33
280
350
69
1.1 457 1200 1700 1900 -- 303 13.9 3.3 15.5
NNU 4856 M/W33
280
350
69
1.1 457 1200 1700 1900 -- 303 13.9 3.3 15.5
NNU 4956 M/W33
280
380
100
2.1 765 1800 1900 2400 -- 312 15 4 32.2
NNU 4956 K/M/W33
280
380
100
2.1 765 1800 1900 2400 -- 312 15 4 32.2
NNU 4056 K/M/W33
280
420
140
1650 3150 1400 1700 315 13.9 5.5 65.5
NNU 4056/M/W33
280
420
140
1650 3150 1400 1700 315 13.9 5.5 65.5
NNU 4056K30/M/W33
280
460
180
2550 4750 1200 1500 326 13.9 6.3 120
NNU 4156 M/W33
280
460
180
2550 4750 1200 1500 326 13.9 6.3 120
NNU 4860 K/M/W33
300
380
80
-- 792 2120 -- 1700 -- 326 16.7 3.6 22
NNU 4860/W33
300
380
80
-- 792 2120 -- 1700 -- 326 16.7 3.6 22
NNU 4060 K/M/W33
300
460
160
-- 2010 4000 -- 1500 -- 340 16.7 6.5 96
NNU 4060 M/W33
300
460
160
-- 2010 4000 -- 1500 -- 340 16.7 6.5 96
NNU 4160 K/30M/W33
300
500
200
-- 2860 5300 -- 1400 -- 351 16.7 7.3 155
NNU 4160/M/W33
300
500
200
-- 2860 5300 -- 1400 -- 351 16.7 7.3 155
NNU 4864 K/W33
320
400
80
-- 765 2080 -- 1600 -- 346 16.7 3.6 23.5
NNU 4864/W33
320
400
80
-- 765 2080 -- 1600 -- 346 16.7 3.6 23.5
NNUP4964B/HB1/W33
320
440
118
-- 1020 2360 -- 1600 -- -- -- -- 55.5
NNU 4064/M/W33
320
480
160
-- 2120 4300 -- 1400 -- 360 16.7 6.4 100
NNU 4064M/W33
320
480
160
-- 2120 4300 -- 1400 -- 360 16.7 6.4 100
NNU4164F
320
540
218
-- 3410 6200 -- 1300 -- 375 -- 8.9 200
NNU4164K30/F
320
540
218
-- 3410 6200 -- 1300 -- 375 -- 8.9 200
NNU4868K/W33
340
420
80
-- 644 1830 -- 1500 -- 366 16.7 3.6 25
NNU4868/W33
340
420
80
-- 644 1830 -- 1500 -- 366 16.7 3.6 25
NNUP4868/W33
340
420
80
-- 644 1830 -- 1500 -- -- -- -- 24.5
NNU4068K/M/W33
340
520
180
-- 2550 5100 -- 1300 -- 385 16.7 7.5 140
NNU4068M/W33
340
520
180
-- 2550 5100 -- 1300 -- 385 16.7 7.5 140
NNU4168K30/M/W33
340
580
243
-- 4020 7500 -- 1200 -- 402 16.7 10 260
NNU4168/M/W33
340
580
243
-- 4020 7500 -- 1200 -- 402 16.7 10 260
NNU4072K/M/W33
360
540
180
-- 2810 5700 -- 1200 -- 405 16.7 7.4 142
NNU4072/M/W33
360
540
180
-- 2810 5700 -- 1200 -- 405 16.7 7.4 142
NNU4172K30/M
360
600
243
-- 4290 8500 -- 1100 -- 422 -- 5.9 275
NNU4172M
360
600
243
-- 4290 8500 -- 1100 -- 422 -- 5.9 275
NNU4867K/W33
380
480
100
-- 952 2550 -- 1300 -- 411 16.7 3.5 44
NNU4867/W33
380
480
100
-- 952 2550 -- 1300 -- 411 16.7 3.5 44
NNU326131/HB1
380
540
130
-- 2010 4300 -- 1200 -- 428 -- 4.9 100
NNU4076K/M/W33
380
560
180
-- 2860 600 -- 1200 -- 425 16.7 7.3 150
NNU4076M/W33
380
560
180
-- 2860 600 -- 1200 -- 425 16.7 7.3 150
NNU4176K30/M
380
620
243
-- 4290 8500 -- 1100 -- 442 -- 7.4 285
NNU4176M
380
620
243
-- 4290 8500 -- 1100 -- 442 -- 7.4 285
NNU4880K/W33
400
500
100
-- 968 2750 -- 1200 -- 431 16.7 3.5 46
NNU4880/W33
400
500
100
-- 968 2750 -- 1200 -- 431 16.7 3.5 46
NNUP4880/HB1/W33
400
500
100
-- 968 2750 -- 1200 -- -- -- -- 45.5
NNU4080F/W33
400
600
200
-- 3470 7200 -- 1100 -- 449 16.7 7.9 205
NNU4080K/F/W33
400
600
200
-- 3470 7200 -- 1100 -- 449 16.7 7.9 205
NNU4180K30/M/W33
400
650
250
-- 4730 9500 -- 1000 -- 463 16.7 7.5 325
NNU4180/M/W33
400
650
250
-- 4730 9500 -- 1000 -- 463 16.7 7.5 325
NNU4884K/W33
420
520
100
-- 990 2850 -- 1200 -- 451 16.7 3.5 48
NNU4884/W33
420
520
100
-- 990 2850 -- 1200 -- 451 16.7 3.5 48
NNU4084K/M/W33
420
620
200
-- 3520 7500 -- 950 -- 469 16.7 7.8 183
NNU4084M/W33
420
620
200
-- 3520 7500 -- 950 -- 469 16.7 7.8 183
NNU4184/316275
420
700
280
-- 5500 11400 -- 950 -- 497 16.7 12.2 440
NNU4888K/W33
420
540
100
-- 1010 2900 -- 1100 -- 471 16.7 3.5 50
NNU4888/W33
420
540
100
-- 1010 2900 -- 1100 -- 471 16.7 3.5 50
NNU4088K/M/W33
420
650
212
-- 3910 8300 -- 950 -- 487 22.3 9.6 215
NNU4088M/W33
420
650
212
-- 3910 8300 -- 950 -- 487 22.3 9.6 215
NNU4188K30/M/W33
420
720
280
-- 5720 11800 -- 900 -- 511 22.3 10.8 450
NNU4188M/W33
420
720
280
-- 5720 11800 -- 900 -- 511 22.3 10.8 450
NNU4892K/W33
460
580
118
-- 1190 3250 -- 1100 -- 497 16.7 5.2 75
NNU4892/W33
460
580
118
-- 1190 3250 -- 1100 -- 497 16.7 5.2 75
NNU4092K/M/W33
460
680
218
-- 4290 9300 -- 950 -- 513 22.3 7.8 240
NNU4092M/W33
460
680
218
-- 4290 9300 -- 950 -- 513 22.3 7.8 240
NNU4192K30M
460
760
300
-- 6440 12900 -- 850 557 537 -- 12.8 535
NNU4192M
460
760
300
-- 6440 12900 -- 850 -- 537 -- 12.8 535
NNU4096K/M/W33
480
700
218
-- 4400 9650 -- 900 -- 533 22.3 7.8 275
NNU4096M/W33
480
700
218
-- 4400 9650 -- 900 -- 533 22.3 7.8 275
NNU4196K30/M/W33
480
790
308
-- 7040 14300 -- 800 -- 557 22.3 12 590
NNU4196M/W33
480
790
308
-- 7040 14300 -- 800 -- 577 22.3 12 590
NNU40/500K/M/W33
500
720
218
-- 4460 10000 -- 850 -- 553 22.3 7.7 287
NNU40/500M/W33
500
720
218
-- 4460 10000 -- 850 -- 553 22.3 7.7 287
NNU41/500K30/M/W33
500
830
325
-- 7480 15000 -- 800 -- 582 22.3 14.1 710
NNU41/500M/W33
500
830
325
-- 7480 15000 -- 800 -- 582 22.3 14.1 710
NNU40/530K/M/W33
530
780
250
-- 5500 12200 -- 800 -- 591 22.3 9.9 420
NNU40/530M/W33
530
780
250
-- 5500 12200 -- 800 -- 591 22.3 9.9 420
NNU41/530K30/M/W33
530
870
335
-- 7810 16000 -- 750 -- 618 22.3 17 790
NNU41/530M/W33
530
870
335
-- 7810 16000 -- 750 -- 618 22.3 17 790
NNU40/560K/M/W33
560
820
258
-- 5720 12900 -- 750 -- 626 22.3 12.8 475
NNU40/560M/W33
560
820
258
-- 5720 12900 -- 750 -- 626 22.3 12.8 475
NNU41/560M/W33
560
920
355
-- 8800 18300 -- 670 -- 653 22.3 16.6 930
NNU40/600K/M/W33
600
870
272
-- 6820 15600 -- 700 -- 664 22.3 9.3 530
NNU40/600M/W33
600
870
272
-- 6820 15600 -- 700 -- 664 22.3 9.9 530
NNU41/600K30/M/W33
600
980
375
-- 9900 21200 -- 630 -- 699 22.3 18.5 1100
NNU41/600M/W33
600
980
375
-- 9900 21200 -- 630 -- 699 22.3 18.5 1100
NNU40/630KM/W33
630
920
290
-- 7650 17600 -- 630 -- 699 22.3 10.2 635
NNU40/630M/W33
630
920
290
-- 7650 17600 -- 630 -- 699 22.3 10.2 635
NNU41/630K30/M/W33
630
1030
400
-- 11000 24000 -- 600 -- 734 22.3 19.7 1330
NNU41/630M/W33
630
1030
400
-- 11000 24000 -- 600 -- 734 22.3 19.7 1330
NNU40/670K/M/W33
670
980
308
-- 8420 19600 -- 600 -- 744 22.3 11.8 765
NNU40/670M/W33
670
980
308
-- 8420 19600 -- 600 -- 744 22.3 11.8 765
NNU41/670K30/M/W33
670
1090
412
-- 12100 25500 -- 530 -- 774 22.3 19.5 1500
NNU41/670MM/W33
670
1090
412
-- 12100 25500 -- 530 -- 774 22.3 19.5 1500
NNU40//710K/M/W33
710
1030
315
-- 9350 21600 -- 560 -- 784 22.3 10.9 850
NNU40/710M/W33
710
1030
315
-- 9350 21600 -- 560 -- 784 22.3 10.9 850
NNU41/710K30/M/W33
710
1150
438
-- 13400 28500 -- 500 -- 820 22.3 20.5 1790
NNU41/710M/W33
710
1150
438
-- 13400 28500 -- 500 -- 820 22.3 20.5 1790
NNU40/750K/M/W33
750
1090
335
-- 10200 24000 -- 500 -- 830 22.3 13.5 925
NNU40/750M/W33
750
1090
335
-- 10200 24000 -- 500 -- 830 22.3 13.5 925
NNU41/750K30/M/W33
750
1220
475
-- 16100 35500 -- 450 -- 871 22.3 19 2230
NNU41/750M/W33
750
1220
475
-- 16100 35500 -- 450 -- 871 22.3 19 2230
NNU40/800K/M/W33
800
1150
345
-- 10800 26000 -- 480 -- 885 22.3 16.3 1140
NNU40/800M/W33
800
1150
345
-- 10800 26000 -- 480 -- 885 22.3 16.3 1140
NNU41/800K30/M/W33
800
1280
475
-- 16500 36500 -- 430 -- 921 22.3 18.6 2390
NNU41/800M/W33
800
1280
475
-- 16500 36500 -- 430 -- 921 22.3 18.6 2390
NNU40/850K30/M/W33
850
1220
365
-- 11700 28500 -- 430 -- 940 22.3 18.2 1340
NNU40/850M/W33
850
1220
365
-- 11700 28500 -- 430 -- 940 22.3 18.2 1340
NNU40/850K30/M/W33
850
1360
500
-- 19800 45000 -- 400 -- 976 22.3 22.3 2900
NNU40/850M/W33
850
1360
500
-- 19800 45000 -- 400 -- 976 22.3 22.3 2900
NNU40/900K30/M/W33
900
1280
375
-- 12800 31500 -- 400 -- 990 22.3 17.8 1500
NNU40/900M/W33
900
1280
375
-- 12800 31500 -- 400 -- 990 22.3 17.8 1500
NNU41/900K30/M/W33
900
1420
515
-- 22000 47500 -- 360 -- 1032 22.3 27.6 3180
NNU41/900M/W33
900
1420
515
-- 22000 47500 -- 360 -- 1032 22.3 27.6 3180
NNU40/950K/M/W33
950
1360
412
-- 14200 35500 -- 380 -- 1050 22.3 20.4 1900
NNU40/950M/W33
950
1360
412
-- 14200 35500 -- 380 -- 1050 22.3 20.4 1900
NNU41/950K30/M/W33
950
1500
545
-- 25500 5700 -- 340 -- 1092 22.3 23.2 3830
NNU41/950M/W33
950
1500
545
-- 25500 5700 -- 340 1238 1092 22.3 23.2 3830
NNU40/1000K30/M/W33
1000
1420
412
-- 15400 38000 -- 340 -- 1101 22.3 19.8 2000
NNU40/1000M/W33
1000
1420
412
-- 15400 38000 -- 340 -- 1101 22.3 19.8 2000
NNU41/1000K30/M/W33
1000
1580
580
-- 27500 62000 -- 300 -- 1154 22.3 28.7 4270
NNU41/1000M/W33
1000
1580
580
-- 27500 62000 -- 300 -- 1154 22.3 28.7 4270
NNU41/1060K30/M/W33
1060
1660
600
-- 30300 69500 -- 280 -- 1214 22.3 26.4 5070
NNU41/1060M/W33
1060
1660
600
-- 30300 69500 -- 280 -- 1214 22.3 26.4 5070
NNU41/1120K30/M/W33
1120
1750
630
-- 33600 76500 -- 280 -- 1279 22.3 28.3 5600
NNU41/1120M/W33
1120
1750
630
-- 33600 76500 -- 280 -- 1279 22.3 28.3 5600
NNU41/1180K30/M/W33
1180
1850
670
-- 39600 85000 -- 240 -- 1350 22.3 32.4 7200
NNU41/1180M/W33
1180
1850
670
-- 36900 85000 -- 240 -- 1350 22.3 32.4 7200
NNU41/1250K30/M/W33
1250
1950
710
-- 41800 98000 -- 220 -- 1426 22.3 31.7 8000
NNU41/1250M/W33
1250
1950
710
-- 41800 98000 -- 220 -- 1426 22.3 31.7 8000
NNU41/1320K30/M/W33
1320
2060
750
-- 45700 106000 -- 190 -- 1507 22.3 36.4 9400
NNU41/1320M/W33
1320
2060
750
-- 45700 106000 -- 190 -- 1507 22.3 36.4 9400
NNU41/1400K30/M/W33
1400
2180
775
-- 49500 116000 -- 170 -- 1598 22.3 37.7 10700
NNU41/1400M/W33
1400
2180
775
-- 49500 116000 -- 170 -- 1598 22.3 37.7 10700
NNU41/1500K30/M/W33
1500
2300
800
-- 52800 132000 -- 150 -- 1709 22.3 39.4 12300
NNU41/1500M/W33
1500
2300
800
-- 52800 132000 -- 150 -- 1709 22.3 39.4 12300

Ningbo DHK Precision Bearing Co., Ltd.

  • 0+

    Years Experience Working

  • 0+

    Customer Service

  • 0+

    Patented Technology

Ningbo DHK Precision Bearing Co., Ltd. (“DHK” for short) is a specialist enterprise engaged in the R&D, manufacture and sales of bearings. Is a famous China Series NNU-Double Row Cylindrical Roller Bearings Factory and OEM/ODM Series NNU-Double Row Cylindrical Roller Bearings Company. And is located in Ningbo Zhenhai Economic Development Zone with convenient transportation. Since the establishment for over a decade, "technology", "quality" and "service" have always been the initial issues in our mind for the sake of development. We provide reliable products and special customized services for global enterprises in heavy industry and have got the Satisfaction and won good reputation of a number of enterprises at home and abroad.

DHK mainly produces cylindrical roller bearings, conical roller bearings, self-aligning roller bearings, ball bearings, as well as various kinds of non-standard bearings and bearings with specially treated surface. So far, DHK’s bearings have been widely applied in such fields as engineering machinery, industrial pump, machine tool, compression engine, gear case, wind power and metallurgy in developed European and American countries.

DHK has the measuring room and inspection room of bearings in the industry and has introduced top-end inspection equipment worldwide and established the QC system in China,thus guaranteeing product quality in an all-round way.

CERTIFICATE

DHK has passed IATF16949 quality system certification and ISO14001 environmental management system certification;and DHK is a national high-tech enterprise.

  • Honor
  • Honor
  • Environmental Managementsystem Certificate
  • Measurement Management System
  • Invention patent1
  • Invention patent2
  • Invention patent3
  • High-tech enterprises

Latest News

Industry Knowledge Expansion

1. Enhanced Radial Load Capacity
Series NNU double row cylindrical roller bearings are engineered to excel in environments where high radial loads are prevalent. The unique design of these bearings, featuring two rows of cylindrical rollers separated by a central rib on the inner ring, facilitates superior radial load-carrying capacity. This design minimizes stress concentrations by distributing the load evenly across the width of the bearing, reducing the risk of premature wear and extending the operational lifespan. In heavy-duty applications such as mining equipment, construction machinery, and steel processing plants, Series NNU bearings play a critical role in supporting rotating components subjected to significant radial forces. Whether it's the heavy loads encountered in conveyor systems or the continuous operation of large industrial fans and rollers, Series NNU bearings provide the reliability and durability needed to keep operations running smoothly. The robust construction of Series NNU bearings enhances their ability to withstand shock and vibration, common challenges in industrial settings. By effectively managing radial loads, these bearings contribute to the overall stability and efficiency of machinery, reducing downtime and maintenance costs.

2. Application Versatility of Series NNU double row cylindrical roller bearings
Series NNU double row cylindrical roller bearings offer unparalleled versatility, making them indispensable across a wide spectrum of industrial applications. From precision machine tools to heavy-duty gearboxes, Series NNU bearings find their place in diverse environments where performance, reliability, and longevity are paramount. In machine tool applications, where precision and accuracy are critical, Series NNU bearings provide the rigidity and smooth operation necessary for achieving high-quality machining results. Their ability to accommodate both radial and axial loads ensures optimal performance even under dynamic operating conditions. Similarly, in gearbox assemblies where torque transmission and motion control are essential, Series NNU bearings contribute to smooth power transmission and operational efficiency. Their compact design allows for seamless integration within gearbox housings, maximizing space utilization without compromising performance. Series NNU bearings are well-suited for rotating machinery such as pumps, compressors, and turbines, where continuous operation is essential for maintaining productivity. Whether it's the demanding requirements of oil and gas exploration or the precision demanded in aerospace applications, Series NNU bearings deliver the performance and reliability needed to meet the challenges of modern industrial environments.