Angular Contact Ball Bearing >> 7300AC Series < Online Inquiry >
Features
Individual bearings of this type are capable of taking radial loads and also axial loads in one direction. Four contact angles of 15, 25, 30, and 40 are available. The larger the contact angle, the higher the axial load capacity. For high-speed operation, however, the smaller contact angles are preferred. Usually, two bearings are used in duplex pairs, and the clearance between them must be adjusted properly.
Pressed steel cages are commonly used, however, for high precision bearings with a contact angle less than 30, polyamide resin cages are often used.
Applications
These bearings are mainly applied in the machine tool spindles, high-frequency motors, gas turbines, oil pumps, air compressors, printing machines and other installations.

Bearing No.

Boundary dimensions

Basic load ratings(kN)

Limiting speed

Mass

mm

Dynamic

Static

rpm

kg

d

D

B

Cr

Cor

Grease

Oil

7300AC

10

35

11

9.5

4.4

18,000

26,000

0.053

7301AC

12

37

12

11.5

5.4

17,000

24,000

0.060

7302AC

15

42

13

12.5

6.2

15,000

21,000

0.084

7303AC

17

47

14

15

7.7

13,000

19,000

0.160

7304AC

20

52

15

17.9

9.6

12,000

17,000

0.150

7305AC

25

62

17

27

15.6

9,500

14,000

0.230

7306AC

30

72

19

32.8

20.4

8,500

12,000

0.350

7307AC

35

80

21

38.2

24.9

7,500

10,000

0.470

7308AC

40

90

23

47

31.1

6,700

9,000

0.660

7309AC

45

100

25

61.6

41.2

6,000

8,000

0.860

7310AC

50

110

27

71.9

48.5

5,600

7,500

1.080

7311AC

55

120

29

83.4

58

5,000

6,700

1.420

7312AC

60

130

31

95.2

67.2

4,800

6,300

1.710

7313AC

65

140

33

38

33.6

4,300

5,600

2.230

7314AC

70

150

35

118.8

88.2

4,000

5,300

2.670

7315AC

75

160

37

134.4

99.8

3,800

5,000

3.100

7316AC

80

170

39

149.5

107.7

3,600

4,800

3.600

7317AC

85

180

41

154.3

122.3

3,400

4,500

4.380

7318AC

90

190

43

177.6

153.5

3,200

4,300

5.600

7319AC

95

200

45

193.3

172.6

3,200

4,200

6.600

7320AC

100

215

47

213.5

198.6

3,000

4,000

7.580

7321AC

105

225

49

226.7

216.6

2,800

3,800

8.850

7322AC

110

240

50

253.2

252.4

2,600

3,600

10.500

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