Hall No.
A1044
Double direction angular contact thrust ball bearings
  • Double direction angular contact thrust ball bearings

Double direction angular contact thrust ball bearings

Feature: high precision
Feature: low temperature rise, high speed
Feature: good rigidity
Feature: convenient fixing and removing

Product Detail

General introduction of Double direction angular contact thrust ball bearings:

Double-direction angular contact thrust ball bearing is a separable precision bearing, consisting of two shaft washers, a housing washer, a spacer, two rolling elements and cage components. The parts of the thrust ball bearing are matched with each other and can be installed separately, but the parts of the bearing of the same size cannot be interchanged. Grinding the thickness of spacer can adjust the clearance and preloaded of bearing.

The double-direction angular contact thrust ball bearing has a contact angle of 60°, which can withstand high bidirectional axial forces, and is especially suitable for the bearing arrangement of machine tool spindles. The double-direction thrust angular contact ball bearing and its matched double row cylindrical roller bearings are the same of nominal outside diameter, but there is gap between the outer ring and housing, thus, the double-direction angular contact thrust ball bearing does not support radial load but double direction axial load.

Applications of Double direction angular contact thrust ball bearings:

Double direction angular contact thrust ball bearings can be used in machine tool spindles, engineering machinery, mining machinery, papermaking machinery, medical devices, textile machinery, metallurgical equipment, wind power generation, motors and compressors, motorcycles, railways and other applications. The bidirectional angular contact ball bearings developed by ZYS are widely used in the spindles of grinding machines, lathes, boring machines, milling machines, drilling machines, etc., especially suitable for the spindles of precision machine tools in combination with double row cylindrical roller bearings.

Features and benefits of Double direction angular contact thrust ball bearings:

The bidirectional angular contact ball bearings have the characteristics of high precision, good rigidity, low temperature rise, good lubrication, high load carrying capacity, and convenient fixing and removing. Bidirectional thrust angular contact ball bearings are also suitable for high-speed operation; however, the cylindrical roller bearing installed with the thrust angular contact ball bearing has a preload, which may not achieve high-speed operation.

Diemension series of Double direction angular contact thrust ball bearings:

ZYS thrust angular contact ball bearings have two dimension series, 2344 series and 2347 series. The 2344 series thrust ball bearings are suitable for installation on the small shaft end of the cone shaft, while the 2347 series thrust ball bearings are suitable for the large shaft end of the cone shaft. The outer diameter of double direction angular contact thrust ball bearings is the same as the outer diameter of cylindrical roller bearings N...-K with the same inner diameter, but the tolerance range is different. When the same housing is selected, the outer diameter of the thrust angular contact ball bearing and the housing are loosely fitted.

Operating temperature

The operating temperature of double direction thrust angular contact ball bearings ranges from–30℃ to +150℃, and is limited by lubricants.

Bearing Cage

Each row of rolling elements has a solid brass cage guided by the rolling elements. The cage is indicated by the suffix M. The cage and lubrication method have a great influence on the proper working speed of the bearing. SP represents the standard accuracy grade of bidirectional thrust angular contact ball bearings.

Lubrication

Bidirectional thrust angular contact ball bearings can be lubricated with oil or grease. Bidirectional thrust angular contact ball bearings are not sealed. Oil lubrication is suitable for high-speed occasions. In order to make the lubricating oil flow through the two rows of balls, there are lubrication grooves and lubrication holes on the bearing race. In high-speed applications, if the bidirectional thrust angular contact ball bearings and cylindrical roller bearings are separated from each other during installation, excessive lubrication of the cylindrical roller bearings can be avoided.

ZYS Bearing Designations

Double direction angular contact thrust ball bearings

Principal dimensions

Basic load ratings

Limiting speed

Weight


d

D

dlmax

T

C

B

rsmin

rIsmin

ns

Ca

Coa

Grease

Oil

KG


mm≈

KN

r/min



234406M

30

55

47

32

16

8

1.0

0.15

4.8

14.3

24

11000

16000

0.29


234706M

32

55

47

32

16

8

1.0

0.15

4.8

14.3

24

11000

16000

0.27


234407M

35

62

53

34

17

8.5

1.0

0.15

4.8

17.6

31.5

9500

14000

0.38


234707M

37

62

53

34

17

8.5

1.0

0.15

4.8

17.6

31.5

9500

14000

0.35


234408M

40

68

58.5

36

18

9

1.0

0.15

4.8

20.8

38

8500

12000

0.46


234708M

42

68

58.5

36

18

9

1.0

0.15

4.8

20.8

38

8500

12000

0.42


234409M

45

75

65

38

19

9.5

1.0

0.15

4.8

23.2

45

7500

10000

0.57


234709M

47

75

65

38

19

9.5

1.0

0.15

4.8

23.2

45

7500

10000

0.53


234410M

50

80

70

38

19

9.5

1.0

0.15

4.8

24

49

7000

9500

0.62


234710M

52

80

70

38

19

9.5

1.0

0.15

4.8

24

49

7000

9500

0.58


234411M

55

90

78

44

22

11

1.1

0.3

6.5

34

67

6300

8500

0.94


234711M

57

90

78

44

22

11

1.1

0.3

6.5

34

67

6300

8500

0.88


234412M

60

95

83

44

22

11

1.1

0.3

6.5

33.5

68

6000

8000

1.01


234712M

62

95

83

44

22

11

1.1

0.3

6.5

33.5

68

6000

8000

0.94


234413M

65

100

88

44

22

11

1.1

0.3

6.5

36

76.5

5600

7500

1.08


234713M

67

100

88

44

22

11

1.1

0.3

6.5

36

76.5

5600

7500

1.01


234414M

70

110

97

48

24

12

1.1

0.3

6.5

42.5

93

7000

7000

1.49


234714M

73

110

97

48

24

12

1.1

0.3

6.5

42.5

93

7000

7000

1.36


234415M

75

115

102

48

24

12

1.1

0.3

6.5

44

100

5000

6700

1.57


234715M

78

115

102

48

24

12

1.1

0.3

6.5

44

100

5000

6700

1.43


234416M

80

125

110

54

27

13.5

1.1

0.3

6.5

52

120

4500

6000

2.16


234716M

83

125

110

54

27

13.5

1.1

0.3

6.5+

52

120

4500

6000

1.98


234417M

85

130

115

54

27

13.5

1.1

0.3

9.5

52

125

4500

6000

2.25


234717M

88

130

115

54

27

13.5

1.1

0.3

9.5

52

125

4500

6000

2.07


234418M

90

140

123

60

30

15

1.5

0.3

9.5

61

146

4000

5300

2.92


234718M

93

140

123

60

30

15

1.5

0.3

9.5

61

146

4000

5300

2.71


234419M

95

145

128

60

30

15

1.5

0.3

9.5

61

150

4000

5300

3.04


234719M

98

145

128

60

30

15

1.5

0.3

9.5

61

150

4000

5300

2.83


234420M

100

150

133

60

30

15

1.5

0.3

9.5

62

156

3800

5000

3.17


234720M

103

150

133

60

30

15

1.5

0.3

9.5

62

156

3800

5000

2.95


234421M

105

160

142

66

33

16.5

2

0.6

9.5

69.5

176

3600

4800

4.07


234721M

109

160

142

66

33

16.5

2

0.6

9.5

69.5

176

3600

4800

3.73


234422M

110

170

150

72

36

18

2

0.6

9.5

90

224

3400

4500

5.19


234722M

114

170

150

72

36

18

2

0.6

9.5

90

224

3400

4500

4.79


234424M

120

180

160

72

36

18

2

0.6

9.5

93

240

3200

4300

5.56


234724M

124

180

160

72

36

18

2

0.6

9.5

93

240

3200

4300

5.14


234426M

130

200

177

84

42

21

2

0.6

12.2

118

300

2800

3800

8.28


234726M

135

200

177

84

42

21

2

0.6

12.2

118

300

2800

3800

7.58


234428M

140

210

187

84

42

21

2.1

0.6

12.2

122

320

2600

3600

8.78


234728M

145

210

187

84

42

21

2.1

0.6

12.2

122

320

2600

3600

8.07


234430M

150

225

200

90

45

22.5

2.1

0.6

15

132

355

2600

3600

10.80


234730M

155

225

200

90

45

22.5

2.1

0.6

15

132

355

2600

3600

9.95


234432M

160

240

212

96

48

24

2.1

0.6

15

156

415

2400

3400

12.90


234732M

165

240

212

96

48

24

2.1

0.6

15

156

415

2400

3400

12.00


234434M

170

260

230

108

54

27

2.1

0.6

15

193

520

2200

3200

17.70


234734M

176

260

230

108

54

27

2.1

0.6

15

193

520

2200

3200

16.30


234436M

180

280

248

120

60

30

2.1

0.6

15

216

585

2000

3000

23.40


234736M

187

280

248

120

60

30

2.1

0.6

15

216

585

2000

3000

21.50


234438M

190

290

258

120

60

30

2.1

0.6

15

224

630

1900

2800

24.70


234738M

197

290

258

120

60

30

2.1

0.6

15

224

630

1900

2800

22.60


234440M

200

310

274

132

66

33

2.1

0.6

15

265

720

1800

2600

31.50


234740M

207

310

274

132

66

33

2.1

0.6

15

265

720

1800

2600

29.20


234444M

220

340

304

144

72

36

3

1.1

15

315

900

1600

2200

41.70


234744M

228

340

304

144

72

36

3

1.1

15

315

900

1600

2200

38.50


234448M

240

360

322

144

72

36

3

1.1

15

325

965

1500

2000

43.80


234748M

248

360

322

144

72

36

3

1.1

15

325

965

1500

2000

40.40


234452M

260

400

354

164

82

41

4

1.5

17.7

380

1180

1400

1900

64.50


234752M

269

400

354

164

82

41

4

1.5

17.7

380

1180

1400

1900

59.70


234456M

280

420

374

164

82

41

4

1.5

17.7

390

1270

1300

1800

69.00


234756M

289

420

374

164

82

41

4

1.5

17.7

390

1270

1300

1800

63.80


234460M

300

460

406

190

95

47.5

4

1.5

17.7

450

1530

1200

1700

98.4


234760M

310

460

406

190

95

47.5

4

1.5

17.7

450

1530

1200

1700

91.2


234464M

320

480

426

190

95

47.5

4

1.5

17.7

455

1630

1200

1700

102


234764M

330

480

426

190

95

47.5

4

1.5

17.7

455

1630

1200

1700

94.9


234468M

340

520

459

212

106

53

4

1.5

17.7

540

2000

1100

1600

138


234768M

350

520

459

212

106

53

4

1.5

17.7

540

2000

1100

1600

129



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