Luoyang Tedin Bearing Co.,Limited
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TEDIN Bearing Co., Ltd.

Tel.:     0086-379 67301199

M.P:    0086-136 63889399

Whatsapp:  8613663889399

Skype:  lysnzc
E-mail: sales@tedin-bearing.com;

Web: www.tedin-bearing.com;

Double-row Cylindrical Roller BearingsDouble row cylindrical roller bearing contains:
1. NN series double row cylindrical roller bearings;
2. NNU series double row cylindrical roller bearings;
3. SKF series cylindrical roller bearings;
4. NTN series cylindrical roller bearings;

Double row Cylindrical Roller Bearing

There are two kinds of structures of double row cylindrical roller bearings: cylindrical inner hole and conical inner hole. This kind of bearing has the advantages of compact structure, high rigidity, large load capacity and small deformation after loading, etc. It is especially suitable for machine tool spindle support. It can be divided into two types: NN series and NNU series. NN series cylindrical roller bearing has double flange on the inner ring, but no flange on the outer ring. NNU type bearing has double flange on the outer ring but with no flange on the inner ring. Both bearings do not limit the relative axial displacement between the shaft and the housing and can be used as non-positioning bearings.


图片14.jpg


Dimensions

Rating LoadsBearing CodeWeight

mm

kN

d

D

B

rmin

Cr

Cor

Current

former

Kg

200

280

60

2.1

420

815

NN 3940

3282940

10.6


280

80

2.1

484

960

NN 4940K/W20

4182940Y

14.1


280

80

2.1

570

1220

NN 4940

4282940

15.3


280

80

2.1

570

1220

NNU 4940

4482940

15.3


310

82

2.1

655

1170

NN 3040

3282140

22.7


310

82

2.1

655

1170

NNU 3040

3482140

22.7


310

109

2.1

890

1730

NN 4040

4282140

30.4

220

300

60

2.1

440

895

NN 3944

3282944

11.4


300

80

2.1

600

1330

NN 4944

4282944

16.6


300

80

2.1

600

1330

NNU 4944

4482944

16.6


340

90

3

815

1480

NN 3044

3282144

29.6


340

90

3

815

1480

NNU 3044

3482144

30


340

118

3

1190

2400

NN 4044

4282144

39.8


370

120

4

1050

1810

NN 3144

3282744

51.9


370

120

4

1050

1810

NNU 3144

3482744

52.3

240

300

60

1.1

405

1030

NN 4848

4282848

9.77


300

60

1.1

358

930

NNU4848

-

9.9


320

60

2.1

460

975

NN 3948

3282948

12.2


320

80

2.1

625

1450

NN 4948

4282948

17.9


320

80

2.1

625

1450

NNU 4948

4482948

18


360

92

3

855

1600

NN 3048

3282148

32.7


360

92

3

855

1600

NNU 3048

3482148

32.7


360

118

3

1240

2600

NN 4048

4282148

39.3


360

118

3

1240

2600

NNU 4048

4482148

42.7


400

128

4

1170

2040

NN 3148

3282748

64.2


400

160

4

1880

3530

NNU 4148

4482748

85

260

360

75   

2.1

670

1380

NN 3952

3282952

21.4


360

100

2.1

711

1540

NN 4952K

4182952

29.2


360

100

2.1

935

2100

NN 4952

4282952

28.3


360

100

2.1

935

2100

NNU 4952

4482952

31.1

260

400

104

4

969

1810

NN 3052K

3182152

47.1


400

104

4

969

1810

NN 3052

3282152

48.5


400

140

4

1550

3250

NN 4052

4282152

59.7


400

140

4

1550

3250

NNU 4052

4482152

65


440

144

4

1480

2660

NN 3152

3282752

89.1


440

180

4

2200

4000

NNU4152

4482752

113

280

350

69

1.1

445

1160

NN 4856

4282856

15.3


350

69

2

457

1200

NNU4856K

-

15.5


380

75

2.1

695

1460

NN 3956

3282956

22.7


380

100

2.1

960

2230

NN 4956

4284956

32.9


380

100

2.1

960

2230

NNU 4956

4482956

33


420

106

4

1020

1950

NN 3056K

3182156

49.1


420

106

4

1020

1950

NN 3056

3282156

49.9


420

106

4

1080

2080

NNU3056

-

51.4


460

146

5

1520

2790

NN 3156

3282756

95.7

300

380

80

2.1

690

1760

NNU 4860

4482860

21.7


420

118

3

1230

2870

NN 4960

4282960

51.6


420

118

3

1230

2870

NNU 4960

4482960

51.9


460

118

4

1180

2250

NN 3060

3282160

71.7


460

118

4

1180

2250

NN 3060K

3182160

69.6


460

160

4

1920

4100

NN4060

-

97.6


500

160

5

1760

3150

NN 3160

3282760

125


500

160

5

1760

3150

NNU 3160

3482760

126

320

400

80

2.1

700

1840

NNU 4864

4482864

22.8


440

118

3

1260

3050

NN 4964

4282964

50.2


440

118

3

1260

3050

NN 4964K

4182964

52


440

118

3

1260

3050

NNU 4964

4482964

54.9


480

121

4

1350

2670

NN 3064

3282164

76.6


480

121

4

1350

2670

NNU 3064

3482164

76.9


480

160

4

1960

4300

NNU 4064

4482164

103

320

540

176

5

2090

3750

NNU 3164

3482764

154

340

460

90

3

905

2020

NN 3968

3282968

42.9


460

118

3

1040

2450

NN 4968K

4182968

53.8


460

118

3

1350

3400

NN 4968

4282968

52.1


460

118

3

1350

3400

NNU 4968

4482968

57.8


520

133

5

1560

3020

NN 3068K

3182168

101


520

133

5

1560

3020

NN 3068

3282168

104


520

133

5

1560

3020

NNU3068

3482168

104


520

180

5

2420

5350

NNU 4068

4482168

141

360

480

90

3

930

2130

NN 3972

3282972

44.9


480

118

3

1390

3550

NNU 4972

4482972

60.6


540

134

5

1630

3240

NN 3072

3282172

106


540

134

5

1630

3240

NN 3072K

3182172

106


540

134

5

1630

3240

NNU 3072

3482172

108


540

180

5

2530

5450

NN 4072

3282172

132

420

620

150

5

2130

4450

NN 3084

3282184

154


620

150

5

2130

4450

NNU 3084

3482184

155


620

200

5

3150

7100

NN 4084

4282184

189


620

200

5

3400

7850

NNU 4084

4482184

209


700

224

6

3550

6800

NNU 3184

3482784

347

440

540

100

2.1

950

2790

NNU 4888

4482888

49.5


650

157

6

2360

4900

NN 3088

3282188

177


650

157

6

2360

4900

NNU 3088

3482188

178


720

226

6

3500

6800

NN 3188

3282788

357

460

580

118

3

1200

3600

NNU4892

4482892

76


620

118

4

1610

3700

NN 3992

3282992

94.5


620

160

4

2400

6200

NNU 4992

4482992

140


680

163

6

2470

5070

NN 3092K

3182192

204


680

163

6

2470

5070

NN 3092

3282192

204

480

650

170

5

2690

7000

NN 4996

4282996

164

480

700

165

6

2600

5550

NN 3096

3282196

211


700

218

6

4300

8600

NNU4096

4482196

273


790

248

7.5

4050

8100

NN 3196

3282796

447

500

670

170

5

2720

7200

NNU 49/500

44829/500

171


720

167

6

2580

5600

NN 30/500

32821/500

205


720

167

6

2580

5600

NNU 30/500

34821/500

220

530

710

136

5

2040

4900

NN 39/530

32829/530

149


710

180

5

2900

7050

NNU 49/530

44829/530

202


780

185

6

3200

6900

NN 30/530

32821/530

296

560

750

140

5

2370

4860

NN 39/560

32829/530

188


750

190

5

3250

8700

NNU 49/560

44829/560

239


780

180

8

2400

6400

NN 6/560

2872/560

266


820

195

8

2460

6560

NN 30/560K

31821/560

341


820

258

6

4100

10600

NN 40/560

42821/560

472


820

258

6

5720

13100

NNU 40/560

44821/560

420

560

920

280

7.5

6850

13700

NNU 31/560

34827/560

738

600

800

200

5

3850

10500

NNU 49/600

44829/600

284


800

200

5

3450

7180

NN 49/600K

41829/600

257


870

200

6

3420

7785

NN 30/600

32821/600

355


870

272

6

6138

14040

NNU 40/600

44821/600

530


980

375

7.5

8910

18990

NNU 41/600

44827/600

1100

630

780

150

4

2290

7000

NNU 48/630

44828/630

160


850

218

6

4200

11400

NN 49/630

42829/630

328


850

218

6

4000

10800

NNU 49/630

44829/630

356


920

212

7.5

3860

8820

NN 30/630

32821/630

430


920

290

7.5

6885

15750

NNU 40/630

44821/630

635


1030

400

7.5

9900

21600

NNU 41/630

44827/630

1330

670

900

230

6

4450

12330

NN 49/670

42829/670

419


900

230

6

4950

13100

NNU 49/670

44829/670

430


980

230

7.5

4620

10260

NN 30/670K

31821/670

597

670

980

308

7.5

7578

17640

NNU 40/670

44821/670

765


1090

412

7.5

10890

22950

NNU 41/670

44827/670

1500

710

870

160

4

2640

8350

NNU 48/710

44828/710

203


950

243

6

4850

13770

NNU49/710

44829/710

480


1030

236

7.5

5148

11880

NN 30/710

32821/710

590


1030

315

7.5

8415

19440

NNU 40/710

44821/710

850


1150

438

9.5

12060

25650

NNU 41/710

44827/710

1790

750

920

170

5

3070

9180

NN 48/750

42828/750

240


1000

250

6

4950

14400

NNU 49/750

44829/750

540


1090

250

7.5

6336

14400

NN 30/750

32821/750

705


1090

335

7.5

9180

21600

NNU 40/750

44821/750

925


1220

475

9.5

14490

31950

NNU 41/750

44827/750

2230

800

1060

258

6

5247

15300

NNU 49/800

44829/800

615


1150

258

7.5

7029

16200

NN 30/800

32821/800

790


1150

345

7.5

9720

23400

NNU 40/800

44821/800

1140

800

1280

475

9.5

14850

32850

NNU 41/800

44827/800

2390

850

1030

180

5

3400

11400

NNU48/850

44828/850

310


1120

272

6

5346

16200

NNU 49/850

44829/850

715


1220

272

7.5

7128

16740

NN 30/850

32821/850

940


1220

365

7.5

10530

25650

NNU 40/850

44821/850

1340


1360

500

6

19080

40500

NNU 41/850

44827/850

2900

900

1180

280

6

5940

18000

NNU 49/900

44829/900

805


1280

280

7.5

7425

18000

NN 30/900

32821/900

1050


1280

375

7.5

11520

28350

NNU 40/900

44821/900

1500


1420

515

6

19800

42750

NNU 41/900

44827/900

3180

950

1250

300

7.5

6633

20160

NNU 49/950

44829/950

960


1360

300

7.5

8217

20160

NN 30/950

32821/950

1300


1360

412

7.5

12780

31950

NNU 40/950

44821/950

1900

950

1500

545

6

22950

51300

NNU 41/950

44827/950

3830

1000

1320

315

7.5

7722

23400

NNU 49/1000

44829/1000

1250

1000

1320

315

7.5

8580

25200

NN49/1000

42829/1000

1200


1420

308

7.5

9090

22050

NN 30/1000

32821/1000

1400


1420

412

7.5

13860

34200

NNU 40/1000

44821/1000

2000


1580

580

6

24750

55800

NNU 41/1000

44827/1000

4270

1060

1400

335

7.5

9450

27450

NNU 49/1060

44829/1060

1350


1500

325

9.5

9900

24750

NN 30/1060

32821/1060

1650


1660

600

7.5

27270

62550

NNU 41/1060

44827/1060

5070

1120

1460

335

7.5

9450

28350

NNU 49/1120

44829/1120

1450


1750

630

7.5

30240

68850

NNU 41/1120

44827/1120

5600

1180

1540

355

7.5

10710

32400

NNU 49/1180

44829/1180

1650


1850

670

7.5

33210

76500

NNU 41/1180

44827/1180

7200

1250

1950

710

7.5

37620

88200

NNU 41/1250

44827/1250

8000

1320

1720

400

7.5

12420

38250

NNU 49/1320

44829/1320

3100


1720

400

7.5

13800

42500

NN49/1320

42829/1320

3060


2060

750

7.5

41130

95400

NNU 41/1320

44827/1320

9400

1400

2180

775

9.5

44550

104400

NNU 41/1400

44827/1400

10700

1500

2300

800

9.5

47520

118800

NNU 41/1500

44827/1500

12300


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