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Home >  Products > Spindle Bearings > angular contact ball bearings
angular contact ball bearings
Spindle Bearings
718 Series
Inner Diameter: 100-850mm
Outer Diametr: 128-1030mm
Width: 13-82mm
Weight: 0.2-140kg


719 Series

Inner Diameter: 100-750mm

Outer Diametr: 140-950mm

Width: 20-106mm

Weight: 0.8-195kg

Details Drawing718 series719 series Comments

There are two series (718 series and 719 series) of CHG light precision angular contact ball bearings; they have the same inside diameter and the outside diameter and width are increased successively.


The single-row angular contact ball bearing can bear a radial load and an axial load in one direction, and it can bear a single axial load in one direction; under the radial load, its axial component load will be caused. Therefore, the single row angular contact ball bearing should be matched with the other bearing to bear the axial load in the opposite direction. So, 2, 3, 4 or even 5 angular contact ball bearings are usually matched together for use, and the angular contact ball bearing has a high limiting speeds.


The contact angles of CHG light series precision angular contact ball bearings are 15° (Code C), 25° (Code AC) and 40° (Code B); for the angular contact ball bearings, the contact angle is greater, the axial load capacity is larger, but the bearing limiting speeds is lower. Therefore, the bearing with the contact angle of 15° is used on the shaft with high speeds and small axial load; on the contrary, the angular contact ball bearings with the contact angle of 25° or 40° should be used.


CHG precision angular contact ball bearings can be divided into 3 series of high-speed angular contact bearings (standard series), ultra high-speed angular contact ceramic ball bearings, and high speed sealed angular contact ball bearings.


For the roller bearings used under common conditions, the inner and outer rings and rolling elements should be made of high carbon chromium bearing steel; but in some applications, such as in ultra-high speed, wear resistance, low temperature rise, long life and high reliability and other places, the steel bearing performances can not meet the requirements of the use conditions, they should be made of bearing material with more excellent performances, among which, the silicon nitride ceramic is considered as the best alternative for roller bearing steel material.


CHG can also offer angular contact hybrid ceramic ball bearings with wide applications for high-speed precision machine tool spindle and other high-speed precision machinery spindle, in which, the inner and outer rings should be made of high quality bearing steel material, and the rolling elements should be made of silicon nitride ceramics.


Compared with standard steel angular contact ball bearings with the same structure and size, the angular contact hybrid ceramic ball bearings have excellent high-speed performances, high rigidity, low friction heat, long life and other advantages.


CHG precision hybrid ceramic ball bearings (Code HQ1) can significantly increase the spindle speeds, rigidity, reliability and productivity, and dramatically reduce the friction heat of the spindle and extend the host life.

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

Dimensions

Basic Load Rating

Designation

Weight

    Installation Size

Limiting Speed

mm

kN

kg

             mm

r/min

d

D

B

Tmin

hmin

Cr

Cor

da

Da

Ta

ra1

Grease

Oil

100

128

13

1

0.3

21.2

27.5

71820

0.2

104.6

120.4

1

1

8500

13000

110

140

16

1

0.3

31.9

40.5

71822

0.51

114.6

135.4

1

1

8000

13000

120

150

16

1

0.3

33.2

45

71824

0.55

124.8

145.4

1

1

7500

12000

130

165

18

1.1

0.6

39

53

71826

0.7

136

159


1

7000

11000

140

175

18

1.1

0.6

44.9

62

71828

0.8

146

169

1

1

6300

10000

150

190

20

1.1

0.6

53.5

74.5

71830

1.32

156

184

1

1

6300

9500

160

200

20

1.1

0.6

54

78

71832

1.25

166

194

1

1

5600

8500

170

215

22

1.1

0.6

80

110

71834

2

175

210

1

1

5600

8500


Dimensions

Basic Load Rating

Designation

Weight

Installation Size

Limiting Speed

mm

kN

kg

mm

r/min

d

D

B

Tmin

hmln

Cr

Cor

da

Da

Ta

ral

Grease

Oil

200

250

24

1.5

1

90

130

71840

2.5

208.5

241.5

1.5

1

4300

6000

220

270

24

1.5

1

151

263

71844

2.5

228.5

261.5

1.5

1

3800

5600

240

300

28

2

1

128

175

71848

4.1

250

290

2

1

3200

4800

260

320

28

2

1

127

190

71852

4.85

270

310

2

1

1400

1900

280

350

33

2

1

140

216

71856

7.2

290

340

2

1

1200

1700

320

400

38

2.1

1.1

190

290

71864

10

332

388

2

1

800

1000

340

440

38

2.1

1.1

219

345

71872

11.1

372

428

2

1



360

480

46

2.1

1.1

261.9

450

71876

18

392

468

2

1

1700

2400

380

500

46

2.1

1.1

292

501

71880

19.5

412

488

2

1




Dimensions

Basic Load Rating

Designation

Weight

Installation Size

Limiting Speed

mm

kN

kg

mm

r/min

d

D

B

Tmin

hmin

Cr

Cor

da

Da

Ta

Ta1

Grease

Oil

420

520

46

2.1

1.1

294

513

71884

20.4

432

508

2

1

750

1000

440

540

46

2.1

1.1

301

540

71888

21.1

452

528

2

1

750

1000

460

580

56

3

3

334

689

71892

34.5

474

566

2.5

1

850

1000

480

600

56

3

1.1

415

820

71896

35.5

494

686

2.5

1

850

1200

500

620

56

3

1.1

351

765

718/500

38

514

606

2.5

1

670

900

530

650

56

3

1.1

369

837

718/530

39.5

544

636

2.5

1

1100

1600

560

680

56

3

1.1

341

837

718/560

41.5

574

666

2.5

1

600

800

600

730

60

3

1.1

421

1044

718/600

47

614

766

2.5

1

560

750

630

780

69

4

1.5

518

1160

718/630

69.7

648

715

3.1

1.5



670

820

69

4

1.5

498

1161

718/670

77

688

802

3

1.5

850

1200

710

870

74

4

1.5

546

1467

718/710

93.5

725

855

3

1

800

1100

750

920

78

5

2

585

1620

718/750

110

768

902

4

2

400

530

850

1030

82

5

2

620

1674

718/850

140

868

1012

4

2

340

450

Note:

 1.Rate and speed in the catalogue is changed with the change of contact angle ,please consult CHG technical department.

 2.Our company can also produce diameter series 7 bearings(Super thin-section),please consult CHG technical department.


Dimensions

Basic Load Rating

Designation

Weight

Installation Size

Limiting Speed

mm

kN

kg

mm

r/min

d

D

B

Tmin

hmin

Cr

Cor

da

Da

Ta

ra1

Grease

Oil

100

140

20

1.1

0.6

60.6

65.5

71920

0.8

106

134

1

1

8500

14000

110

150

20

1.1

0.6

62.4

72

71922

0.86

116

144

1

1

8000

13000

120

150

20

1.1

0.6

24.7

25.5

71924

1.15

116

144

1

1

10000

15000

130

180

24

1.5

0.6

92.3

108

71926

1.55

137

173

1.5

1.5

7000

11000

140

190

24

1.5

0.6

95.6

116

71928

1.65

147

183

1.5

1.5

6700

10000

150

210

28

2

1

90

120

71930

3

160

200

2

1

6300

9500

160

220

28

2

1

109

129

71932

3

170

210

2

1

6000

9000

170

230

28

2

1

110

140

71934

3.3

179

221

2

2

5600

8500

190

260

33

2

1

139

177

71938

4.45

199

255

2

2

5000

7500




Dimensions

Basic Load Rating

Designation

Weight

Installation Size

Limiting Speed

mm

kN

kg

mm

r/min

d

D

B

Tmin

hmln

Cr

Cor

da

Da

Ta

ral

Grease

Oil

200

280

38

2.1

1.1

150

210

71940

7.1

212

268

2

1

4300

6000

220

300

38

2.1

1.1

200

250

71944

7.2

232

288

2

1

3800

5600

240

320

38

2.1

1.1

203

285

71948

8.37

252

308

2

1

3200

4800

260

360

46

2.1

1.1

242

345

71952

13.5

272

348

2

1

1300

1800

280

380

46

2.1

1.1

226

337

71956

15

292

368

2

1

1100

1600

320

440

56

3

1.1

350

550

71964

25.5

334

426

2.5

1

800

1000

340

460

56

3

1.1

292

510

71968

27.5

354

446

2.5

1

800

1000

360

480

56

3

1.1

350

600

71972

29





800

1000

380

520

65

4

1.5

369

661.5

71976

40.5

395

505

3

1

850

1200

400

540

65

4

1.5

380.7

702

71980

42

415

525

3

1

800

1100



Dimensions

Basic Load Rating

Designation

Weight

Installation Size

Limiting Speed

mm

kN

kg

mm

r/min

d

D

B

Tmin

hmin

Cr

Cor

da

Da

Ta

Ta1

Grease

Oil

420

560

65

4

1.5

327

603

71984

44.5

435

545

3

1

700

950

440

600

74

4

3

456.3

936

71988

61

455

585

3

1

750

1000

460

620

74

4

1.5

456

936

71992

58

475

605

3

1

750

900

530

670

78

5

2

498

1098

719/500

78

518

652

4

1

630

850

560

710

82

5

2

556

1206

719/530

92

558

692

4

1

1000

1500

600

750

85

5

2

533

1161

719/560

105

578

732

4

2

560

750

630

800

90

5

2

644

1557

719/600

125

618

782

4

2

900

1300

750

950

106

6

3

767

1980

719/710

195

733

927

5

2

800

1100

Note:

 1.Rate and speed in the catalogue is changed with the change of contact angle,please consult CHG technical department.

 2.Our company can also produce diameter series 7 bearings(Super thin-section),please consult CHG technical department.