bearing steel Chemical ingredients:

Dimensionsmm

Basic Load Ratings

Designation

Weight

Speed limited(r/min)

d

D

B

Cr

Cor

Kg

Grease

Oil

45

85

19

46

47

N209

0.432

8400

9900

50

90

120

50.5

54.5

N210

0.47

7600

9000

55

100

25

97

114

N2211E

0.968

5600

6600

50

110

27

87

86

N310

1.14

6500

7700

55

120

29

111

111

N311

1.45

5900

7000

65

140

33

135

139

N313

2.23

5100

6000

55

100

21

61

66.5

NF211

0.638

6900

8200

90

160

30

152

178

NF218

2.3

4300

5000

55

100

25

97

114

NU2211E

0.968

5600

6600

35

80

21

49.5

47

NF307

0.461

9000

11000

40

90

23

58.5

57

NF308

0.658

8000

9400

45

100

25

79

77.5

NF309

0.877

7200

8400

50

110

27

87

86

NF310

1.14

6500

7700

55

120

29

111

111

NF311

1.45

5900

7000

60

130

31

124

126

NF312

1.8

5500

6500