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Home >  Products > Ball Bearings > Four-point contact ball bearings
Four-point contact ball bearings
Ball Bearings
four point contact ball bearings
Inner Diameter: 150-480mm
Outer Diameter: 225-870mm
Weight: 5.1-470kg
Type: QJ, QJF
Details DrawingSpecifications Comments

Four point contact ball bearings are separable bearings, in which, type QJ0000 has two piece inner ring, type QJF0000 has two piece outer rings, their contact angle are both 35°. When carrying pure radial loads, each ball cotacts with rings ar four point, and they are two point contact under pure axial loads. The bearings can carry axial loads in two directions and certain moment loads, and have the features of single row and double row angular contact ball bearings. They only can work normally in high speed when two point contact is formed.


Brass or aluminium soild cages are exactly suitbale for four point contact ball bearings.

Please kindly post your comments,we will attach great importance to it,and give our reply quickly.Thank you.

Boundary dimensions

Basic load ratings

Designations

Mass

Installation dimersion

Limiting speeds

mm

kN

Current

Original

kg

mm

r/min

d

D

B

rmin

Cr

Cor

damin

Damax

ramax

Grease

Oil

120

180

28

2

148

196

QJ1024


2.65

130

170

2

2600

3600


215

40

2.1

286

340

QJ224


6.95

132

203

2

2200

3200


260

55

3

390

490

QJ324


16

148

292

3

1900

2800

130

200

33

3

182

240

QJ1026


4.05

140

190

2

2200

3200


230

40

3

296

365

QJ226


7.75

144

216

2.5

1900

2800


280

58

4

423

560

QJ326


19.5

148

262

3

1800

2600

140

210

22

1.1

121

163

605647A


2.6

147

203

1

2000

3000


210

33

2

190

265

QJ1028


4.3

150

200

2

2000

3000


250

42

3

325

440

QJ228


9.85

154

236

2

1800

2600


300

62

4

468

640

QJ328


24

158

282

3

1700

2400

150

225

35

2.1

225

275

QJ1030

176130

5.1

162

213

2

1900

2800


270

45

3

302

372

QJ230

176230

12.5

164

256

2.5

1700

2400


320

65

4

494

710

QJ330

176330

29

168

302

2

1600

2200

160

240

38

2.1

260

318

QJ1032

176132

6.3

172

228

2

1800

2600


290

48

3

352

455

QJ232

176232

14.6

174

276

2.5

1600

2200


340

68

4

585

865

QJ332

176332

31

178

388

3

1500

2000

170

260

42

2.1

226

350

QJ1034

176134

8.5

182

248

2

1700

2400


265

42

2.1

226

350

QJF1034X1

176734X1

9

182

248

2

1300

1600


310

52

4

358

480

QJ234

176234

19.5

188

292

3

1600

2200


360

72

4

618

965

QJ334

176334

41.5

188

342

3

1400

1900

180

280

46

2.1

335

408

QJ1036

176136

11

192

268

2

1600

2200


320

52

4

392

545

QJ236

176236

20.5

198

3020

3

1500

2000


380

75


637

1020

QJ336


47.5

198

362

3

1300

1800


Boundary dimensions

Basic load ratings

Designations

Mass

Installation dimersion

Limiting speeds

mm

kN

Current

Original

kg

mm

r/min

d

D

B

rmin

Cr

Cor

damin

Damax

ramax

Grease

Oil

190

290

46

2.1

348

430

QJ1038

179138

11.5

202

278

2

1600

2200


340

55

4

455

735

QJ238

176238

39

208

322

3

1400

2200

200

310

51

2.1

380

498

QJ1040

176140

14.9

212

298

2

1500

2000


360

58

4

507

850

QJ240

176240

27

218

342

3

1300

1800


360

70

4

520

865

QJF1240

-

32.5

218

342

3

1300

1800

220

340

56

3

448

622

QJ1044

176144

19.6

234

326

2.5

1300

1800


400

78

4

592

1020

QJ1244


45.5

238

382

3

1100

1600


460

88

5

780

1400

QJ344


78

242

438

4

1000

1500

240

360

56

3

458

655

QJ1048

176148

21

254

346

2.5

1200

1700


440

85

4

663

1220

QJ1248


61

258

422

3

1000

1500

260

360

46

2.1

390

710

QJ1952


15

271

349

2

1100

1600


400

65

4

510

765

QJ1052

176152

31.3

278

382

3

1000

1500

280

420

65

4

540

835

QJ1056

176156

33.2

298

402

3

950

1400


500

90

5

728

1460

QJ1256


82

302

478

4

950

1400

300

460

74

4

630

1040

QJF1060

116160

47

318

442

3

900

1300


540

98

5

832

1760

QJ1260


105

322

518

4

850

1200

320

480

74

4

650

1090

QJ1064

176164

49.5

338

462

3

850

1200


580

105

5

923

2040

QJ1264


130

342

558

4

800

1100

340

520

82

5

725

1270

QJ1068

176168

67.5

362

498

4

800

1100


620

118

6

1060

2450

QJ1268


165

368

592

5

750

1000

360

540

82

5

768

1380

QJ1072

176172

69.2

382

518

4

800

1100


650

122

6

999

2340

QJ 1272

1176272

190

388

622

5

700

950



Boundary dimensionsBasic load ratingsDesignationsMassInstallation dimersionLimiting speeds
mmkNCurrentOriginalkgmmr/min
dDBrminCrCordaminDamaxramaxGreaseOil
3805608257371710QJ107617617673.540253847501000

680132610532565QJ127611762762204086525670900
4006009058141944QJ108017618095.54225784700950

720140611702925QJ128011762802654286925600800
4205606545731440QJ19841176984514385423700950

6209058312052QJ108417618499.54425984670900

7601507.512873375QJ128411762843154567246560750
4406007446851710QJ19881176988654585823670900

6509468962250QJ10881761881154686225630850

7901557.512603375QJ128811762883504767546560750
46068010069362385QJ10921761921304886525600800

8301657.513773825QJ129211762924154967946530700
48070010069542520QJ10961761961355086725560750

8701707.515124275QJ129611762964705168346500670