Email Us
double row cylindrical roller bearing catalogue
double row cylindrical roller bearing catalogue
double cylindrical roller bearing
double row needle roller bearings

Double-Row Cylindrical Roller Bearings

Double-row cylindrical roller bearings feature two rows of cylindrical rollers, allowing them to handle higher radial loads and provide increased radial stiffness compared to single-row bearings. They're suitable for applications requiring heavy load support and high rigidity, such as machine tools and industrial machinery.

Features of Double-Row Cylindrical Roller Bearings


  • Enhanced Load Capacity: Double-row cylindrical roller bearings can carry higher radial loads and axial loads in both directions due to their two rows of rollers, making them ideal for applications with heavy-duty requirements.

  • Improved Rigidity: The double-row arrangement provides increased rigidity and better resistance to deformation under load, ensuring stable and precise machine operation.

  • Axial Location: These bearings can accommodate axial displacement within certain limits, allowing for shaft movement without compromising bearing performance.

  • Design Variations: Double-row cylindrical roller bearings come in various configurations, such as NNU and NN designs, offering versatility for different load distributions and operational demands. This adaptability makes them suitable for diverse industries, including automotive and industrial machinery.


Specs of Double-Row Cylindrical Roller Bearings




Double-Row Cylindrical Roller Bearings


80 mm-260 mm Double-Row Cylindrical Roller Bearings Specs

Basic Size

Basic load rating
dynamic, static

Designation(Design)

Abutment and chamfer dimensions

Mass

d

D

B

rsmin

Fw

Ew

C

C。

Cylindrical bore

Tapered bore

da(2)

d1a

dcmin

Damax

ramax


mm

kN



mm

kg

80

125

34

1.1


113

119

186

NU3016

NN3016K

86.5

87


118.5

1

1.5

90

140

37

1.5


127

143

228

NU3018

NN3018K

98

99


132

1.5

1.98

95

145

37

1.5


132

150

246

NU3019

NN3019K

103

104


137

1.5

2.26

100

140

30

1.1


130

106

182

NN3920

NN3920K

109

111


131

1

1.32

140

40

1.1


130

155

295

NN4920

NN4920K

106.5

108


131

1

1.76

140

40

1.1

112


155

295

NNU4920

N NU4920K

106.5

108

115


1

1.9

150

37

1.5


137

157

265

NN3020

NN3020K

108

109


142

1.5

2.25

165

52

1.1


148

234

360

NN3120


109




1

4.38

165

52

2

118


234

360

NNU3120


112


122


2

4.39

105

145

40

1.1


135

161

315

NN4921


111.5

113


138.5

1

2

145

40

1.1

117


161

315

NNU4921

NNU4921K

111.5

113

120

138.5

1

2

160

41

2


146

198

320

NN3021

NN3021K

1 14

115


151

2

2.93

160

41

2

120


198

320

NNU3021

NNU3021K

114

115

119

151

2

2.9

110

150

30

1.1


140

114

207

NN3922

NN3922K

119

121



1

1.41

1 50

40

1.1


140

167

335

NN4922

NN4922K

116.5

118


143.5

1

2.1

150

40

1.1

122


167

335

NNU4922

NNU4922K

116.5

118

125

143.5

1

2.07

1 70

45

2


155

229

375

NN3022

NN3022K

119

121


161

2

3.71

170

45

2

127


229

375

NNU3022


119

121

130

161

2

3.74

180

56

1.1


163

290

450

NN3122


119




1

5.4

120

165

34

1.1


153

138

251

NN3924

NN3924K

130

132



1

2.02

165

45

1.1


153

183

360

NN4924

NN4924K

126.5

128


158.5

1

2.87

165

45

1.1

133.5


183

360

NNU4924

NNU4924K

126.5

128

137

158.5

1

2.85

180

46

2


165

239

405

NN3024

NN3024K

129

131


171

2

4.04

180

46

2

137


239

405

NNU3024


129

131

140

17 1

2

4.07

200

62

2


180

355

550

NN3124

NN3124K

132

137



2

7.72

130

165

35

1


154

107

238

NN4826


138



156

1

1.82

180

37

1.5


167

1 73

325

NN3926

NN3926K

141

144


168

1.5

2.59

180

50

1.5


168

274

545

NN4926

NN4926K

138

140


172

1.5

3.84

180

50

1.5

144


274

545

NNU4926

N NU4926K

138

143

148

172

1.5

3.85

200

52

2


182

284

475

NN3026

NN3026K

139

141


191

2

5.88

200

52

2

150


284

475

NNU3026

NNU3026K

139

141

154

191

2

5.92

210

64

2

152


360

580

NNU3126


142


157


2

8.49

140

190

37

1.5


178

201

375

NN3928

NN3928K

151

153



1.5.

2.78

190

50

1.5


178

283

585

NN4928

NN4928K

148

150


182

1.5

4.07

190

50

1.5

154


283

585

NNU4928

NNU4928K

148

1 50

158

182

1.5

4.08

210

53

2


192

298

515

NN3028

NN3028K

149

151


201

2

6.34

210

53

2

160


298

515

NNU3028


149

151

164

201

2

6.38

225

68

2.1


203

400

650

NN3128


155



209

2

10.1

225

68

2.1

163


400

650

NNU3128


155


168


2

10.3

150

210

45

2


195

262

490

NN3930

NN3930K

163

166


196

2

4.47

210

60

2


195

350

715

NN4930

NN4930K

159

162


201

2

6.36

210

60

2

167


350

715

N NU4930

NNU4930K

159

162

171

201

2

6.39

225

56

2.1


206

335

585

NN3030

NN3030K

161

162


214

2

7.77

225

56

2.1

172


335

585

NNU3030


161

162


214

2

7.81

250

80

2.1


226

535

860

NN3130


165


176


2

15.4

160

200

40

1


188

150

355

NN4832


169




1

2.95

220

45

2


205

271

520

NN3932

NN3932K

173

176



2

5.02

220

60

2


205

365

760

NN4932

NN4932K

169

172


211

2

6.77

220

60

2

177


365

760

NNU4932

NNU4932K

169

172

182

211

2

6.76

240

50

2.1


219

375

660

NN3032

N N3032K

171

172


229

2

9.41

240

60

2.1

183


375

660

NNU3032


171

172

188

229

2

9.48

240

80

2.1


219

510

985

NN4032

NN4032K

175

182



2

12.7

240

80

2.1

183


510

985

NNU4032


175


188


2

12.7

270

86

2.1


243

620

1000

NN3132


175




2

19.8

170

230

45

2


215

280

550

NN3934

NN3934K

183

186



2

5.01

230

60

2


215

375

805

NN4934

NN4934K

179

182


221

2

7.13

230

60

2

187


375

805

NNU4934

NNU4934K

179

182

192

221

2

7.12

260

67

2.1


236

450

805

NN3034

NN3034K

181

183


249

2

12.8

260

67

2.1

196


450

805

NNU3034

NNU3034K

181

183

201

249

2

12.9

280

88

2.1


253

635

1050

NN3134


185




2

21.1

280

88

2.1

201


635

1050

NNU3134


185


206


2

21.4

180

225

45

1


213

225

535

NN4836


189




1

4.15

250

52

2


232

340

655

NN3936

NN3936K

193

198



2

7.2

250

69

2


232

480

1020

NN4936 ,

NN4936K

189

193


241

2

10.4

250

69

2

201


480

1020

NNU4936

NNU4936K

189

193

205

241

2

10.4

280

74

2.1


255

565

995

NN3036

NN3036K

191

193


269

2

16.8

280

74

2.1

209


565

995

NNU3036


191

193

214

269

2

16.9

190

260

52

2


243

345

680

N N3938

NN3938K

203

208



2

7.46

260

69

2


243

485

1060

NN4938

NN4938K

199

203


251

2

10.9

260

69

2

211.5


485

1060

NNU4938

NNU4938K

199

203

217

251

2

10.9

290

75

2.1


265

595

1080

NN3038

NN3038K

201

203


279

2

17.8

290

75

2.1

219


595

1080

N NU3038


201

203

273

179

2

17.9

290

100

2.1


265

825

1640

NN4038


206




2

24

320

104

3


287

840

1420

NN3138


208




2.5

33.8

200

280

60

2.1


259

420

815

NN3940

NN3940K

216

221



2

10.6

280

80

2.1


259

570

1220

NN4940

NN4940K

211

214


269

2

15.3

280

80

2.1

2230


570

1220

NNU4940

NNU4940K

211

214

228

269

2

15.3

310

82

2.1


282

655

1170

NN3040

NN3040K

211

214


299

2

22.7

310

82

2.1

232


655

1170

NNU3040

NNU3040K

211

214

237

299

2

22.9

310

109

2.1


282

890

1730

NN4040

NN4040K

216

225



2

30.4

220

300

60

2.1


279

440

895

NN3944

NN3944K

236

241



2

11.4

300

80

2.1


279

600

1330

NN4944

NN4944K

231

234


289

2

16.6

300

80

2.1

243


600

1330

NNU4944

NNU4944K

231

234

248

289

2

16.6

340

90

3


310

815

1480

NN3044

NN3044K

233

236


327

2.5

29.6

340

90

3

243


815

1 480

NNU3044


233

236

259

327

2.5

30

340

118

3


310

1190

2400

NN4044

NN4044K

238

248



2.5

39.8

370

120

4


331

1050

1810

NN3144


241




3

51.9

370

120

4

263


1050

1810

NNU3144


241


268


3

52.3

240

300

60

1.1


283

405

1030

NN4848


252




1

9.77

320

60

2.1


300

460

975

NN3948

NN3948K

257

262



2

12.2

320

80

2.1


300

625

1450

NN4948

NN4948K

251

254


309

2

17.9

320

80

2.1

263


625

1450

NNU4948

NNU4948K

251

254

269

309

2

18

360

92

3


330

855

1 600

NN3048

NN3048K

253

256


347

2.5

32.7

360

92

3

274


855

1 600

NNU3048

NNU3048K

253

256

280

347

2.5

30.8

360

118

3


330

1240

2600

NN4048

NN4048K

259

269



2.5

39.3

360

118

3

274


1240

2600

NNU4048


259


281


2.5

42.7

400

128

4


358

1170

2040

NN3148

NN3148K

262

272



3

64.2

260

360

75

2.1


335

670

1380

NN3952

NN3952K

277

283



2

21.4

360

100

2.1


335

935

2100

NN4952

NN4952K

271

275


349

2

28.3

360

100

2.1

289


935

2100

NNU4952

NNU4952K

271

275

295

349

2

31.1

400

104

4


364

1030

1920

NN3052

NN3052K

276

278


384

3

47.7

400

104

4

300


1030

1920

NNU3052


276

278

306

384

3

48.1

400

140

4


364

1550

3250

NN4052

NN4052K

282

294



3

59.7

400

140

4

300


1550

3250

NNU4052


282


306


3

65

440

144

4


393

1480

2660

NN3152

NN3152K

282

294



3

89.1




280 mm-850 mm Double-Row Cylindrical Roller Bearings Specs

Basic SizeBasic load rating
dynamic, static
Designation(Design)Abutment and chamfer dimensionsMass
dDBrsminFwEwCC。Cylindrical boreTapered boreda(2)d1adcminDamaxramax
mmkN

mmkg
280350691.1
3294451160NN4856
293


115.3
380752.1
3556951460NN3956NN3956K297304

222.7
3801002.1
3559602230NN4956NN4956K29 1295
369232.9
3801 002.1309
9602230NNU4956NNU4956K291295315369233
4201064
38410802080NN3056NN3056K296298
404351.1
4201064320
10802080NNU3056
296298326404351.4
4601465
41315202790NN3156NN3156K306319

495.7
300380802.1324
6901760NNU4860
318
331
221.7
4201183
38812302870NN4960NN4960K313318
4072.551.6
4201183336
12302870NNU4960NNU4960K3133183434072.551.9
4601184
41812902460NN3060NN3060K316319
444370.7
4601604
41819204100NN4060NN4060K323336
435397.6
5001605
44817603150NN3160NN3160K327340

4125
5001605358
17603150NNU3160
327
365
4126
320400802.1344
7001840NNU4864
338
351
222.8
4401183
40812603050NN4964NN4964K333338
4272.550.2
4401183356
12603050NNU4964NNU4964K3333383634272.554.9
4801214
43813502670NN3064NN3064K336340
464376.6
4801214366
13502670NNU3064NNU3064K336340373464376.9
4801604367
19604300NNU4064
343
374
3103
5401765384
20903750NNU3164NNU3 164K347362391
4154
340460903
4289052020NN3968NN3968K361368

2.542.9
4601183
42813503400NN4968NN4968K361371

2.552.1.
4601183376
13503400NNU4968
361
383
2.557.8.
5201335
47316703300NN3068NN3068K360365
5004102
5201335393
16703300NNU3068
3603654005004103
5201805393
24205350NNU4068
368
400
4141
360480903
4489302130NN3972
381


2.544.9
4801183396
13903550NNU4972
381
403
2.560.6
5401345
49317003450NN3072NN3072K380385
5204106
5401345413
17003450NNU3072
3803854205204108
5401805
49625305450NN4072NN4072K388403

4132
3805201404
48518804600NN4976NN4976K404416

381.3
5201404421
18804600NNU4976
404
428
388.8
5601355
51317 703700NN3076NN3076K408420

4113
5601805
51326506200NN4076
408424

4142
5601805433
26506200NNU4076NN4076K408
440
4153
6201945
55926204950NN3176
408425

4224
6201945449
26204950NNU3176N N3176K408
456
4228
4005001002.1430
9052540NNU4880
420
437
245.7
5401064
50412902890NN3980
425


368.7
5401404
50519404900NN4980NN4980K425437

384.1
5401404446
19404900NNU4980NNU4980K425437453
393.6
6001485
54820904300NN3080NN3080 K429441

4147
6002005456
28406050NNU4080
429
463
4201
6502006474
27 705400NNU3180
435
481
5262
4205601064
5221 2802900NN3984
445


371.2
5601404
52520005150NN4984N N4984K445457

387.9
5601404461
20005150NNU4984
445
486
397.2
6201505
56821304450NN3084NN3084K449462

4154
6201505478
21304450NNU3084NNU3084K449462485
4155
6202005
57131507100NN4084NN4084K449466

4189
6202005475
34007850NNU4084
449
482
4209
7002246501
35506800NNU3184
455
508
5347
4405401002.1470
9502790NNU4888
461
477
249.5
6501576
59623604900NN3088NN3088K476486

5177
6501576500
23604900NNU3088
476
507
5178
7202266
64935006800NN3188N N3188K476495

5357
4606201184
57816103700NN3992NN3992K486496

394.5
6201604507
24006200NNU4992NNU4992K486500514
3140
6801636
62325505350NN3092NN3092K496510

5202
4806501705
60726907000NN4996N N4996K510525

4164
7001656
64326005550NN3096
517


5211
7902487.5
70840508100NN3196NN3196K523544

6447
5006701705551
27207200N NU49/500
531
558
4171
7201676
66325805600NN30/ 500NN30/500K537551

5205
7201676563
25805600NNU30/500
537
570
5220
5307101365
66320404900NNU39 /530
561


4149
7101805575
29007050NN49/530NNU49 / 530K561574582
4202
7801856
71532006900NNU30/530NN30/530K568583

5296
5607501905617
32508700NNU49/560
592
624
4239
8202586
745410010600NN40/560
598


5472
9202807.5650
685013700NNU31/560
604
657
6738
6008002005659
385010500NNU49/ 600
633
666
4284
6307801504676
22907000NNU48/ 630
659
683
3160
8502186
793420011400N N49/630NN49/630K670688

5328
8502186704
400010800NNU49/630NNU49/630K670688711
5356
6709002306
838415011 500NN49/670
710


5419
7108701604759
26408350NNU48/710
741
766
3203
80010602586879
570016500NNU49/800NNU49/800K843865886
5614
85010301805905
340011400NNU48/850
888
912
4310


Contact Us
Contact WKB For Quality Rolling Bearings

Related Cylindrical Roller Bearings

No.17, South Road of Industrial Park, Wawo Town, Wafangdian City, Liaoning Prov. China
Chenysh@wkb-bearing.com +86-411-8552-9188