Angular Contact Ball Bearing >> 7300C 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

7300C

10

35

11

9.8

4.6

18,000

26,000

0.053

7301C

12

37

12

11.8

5.6

17,000

24,000

0.060

7302C

15

42

13

13.2

6.7

15,000

21,000

0.084

7303C

17

47

14

15.7

8.2

13,000

19,000

0.160

7304C

20

52

15

18.4

9.8

12,000

17,000

0.150

7305C

25

62

17

27.8

15.9

9,500

14,000

0.230

7306C

30

72

19

33.2

21.2

8,500

12,000

0.350

7307C

35

80

21

40.3

25.8

7,500

10,000

0.470

7308C

40

90

23

49.3

32.3

6,700

9,000

0.660

7309C

45

100

25

63.1

42.9

6,000

8,000

0.860

7310C

50

110

27

74.9

50.9

5,600

7,500

1.080

7311C

55

120

29

86.4

59.5

5,000

6,700

1.420

7312C

60

130

31

98.6

68.5

4,800

6,300

1.710

7313C

65

140

33

113.1

79.6

4,300

5,600

2.230

7314C

70

150

35

126

91.6

4,000

5,300

2.670

7315C

75

160

37

140.7

103.9

3,800

5,000

3.100

7316C

80

170

39

156.1

112.2

3,600

4,800

3.600

7317C

85

180

41

160.7

130.5

3,400

4,500

4.380

7318C

90

190

43

184.9

159.9

3,200

4,300

5.600

7319C

95

200

45

201.1

179.8

3,200

4,200

6.600

7320C

100

215

47

222.1

206.7

3,000

4,000

7.580

7321C

105

225

49

235.8

225.6

2,800

3,800

8.850

7322C

110

240

50

263.2

261.9

2,600

3,600

10.500

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