Hall No.
A1079
Double-row Cylindrical roller bearing
  • Double-row Cylindrical roller bearing
  • Double-row Cylindrical roller bearing

Double-row Cylindrical roller bearing

Series: NN,NNU,NNUP
Material of rings and rollers: chrome steel; GCr15 and GCr15SiMn
Material of cages: brass, steel and nylon
Precision: P0, P6

Product Detail

Details : 
Double row cylindrical roller bearing:NN bearing has no rib on outer ring, but has ribs on both sides of inner ring and also a center rib in the middle of the inner ring.NNU bearing has ribs on both sides of the outer ring and also a center rib in the middle of the outer ring, but no ribs on the inner ring.NNF bearing is a full complement cylindrical roller bearing. It is consist of a outer ring with a center rib and a inner ring with two ribs on both sides. It has both sides of contact seal type. 
This type of bearings is separable.As their rollers linearly come into contact with inner ring and outer ring with less coefficient,  these bearings have very good capacity of radial load,suitable for electric motors,automobiles,transmission shafts,gear shafts and so on. Double row cylindrical roller bearings are good at the spindles of spindles of machine tools.


Bearing Designation 

Boundary Dimensions 

Mass 







d

D

B




mm

kg


NNU4121M/W33

105

175

69

6.7


NNU4122M/W33

110

180

69

6.95


NNU4124M/W33

120

200

80

11


NNU4126M/W33

130

210

80

10.7


NNU4128M/W33

140

225

85

13


NNU4130M/W33

150

250

100

18


NNU4132M/W33

160

270

109

25


NNU4134M/W33

170

280

109

26


NNU4136M/W33

180

300

118

32.5


NNU4138M/W33

190

320

128

41


NNU4840M/W33

200

250

50

5.75


NNU4140M/W33

200

340

140

51


NNU4144M/W33

220

370

150

65


NNU4848M/W33

240

300

60

9.9


NNU4148M/W33

240

400

160

85


NNU4052M/W33

260

400

140

63.5


NNU4152M/W33

260

440

180

110


NNU4856M/W33

280

350

69

15.5


NNU4056M/W33

280

420

140

66.5


NNU4156M/W33

280

460

180

120


NNU4860M/W33

300

380

80

22


NNU4060M/W33

300

460

160

96


NNU4160M/W33

300

500

200

155


NNU4864M/W33

320

400

80

23.5


NNU4064M/W33

320

480

160

100


NNU4164M/W33

320

540

218

200


NNU4868M/W33

340

420

80

25


NNU4068M/W33

340

520

180

140


NNU4168M/W33

340

580

243

260


NNU4072M/W33

360

540

180

142


NNU4172M/W33

360

600

243

275


NNU4876M/W33

380

480

100

44


NNU4076M/W33

380

560

180

150


NNU4176M/W33

380

620

243

285


NNU4880M/W33

400

500

100

46


NNU4080M/W33

400

600

200

205


NNU4180M/W33

400

650

250

325


NNU4884M/W33

420

520

100

48


NNU4084M/W33

420

620

200

183


NNU4184M/W33

420

700

280

440


NNU4888M/W33

440

540

100

50


NNU4088M/W33

440

650

212

215


NNU4188M/W33

440

720

280

450


NNU4892M/W33

460

580

118

75


NNU4092M/W33

460

680

218

240


NNU4192M/W33

460

760

300

535


NNU4096M/W33

480

700

218

275


NNU4196M/W33

480

790

308

590



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