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Deep Groove Ball Bearings in stock

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Deep Groove Ball Bearings
Bearing Material-Technical info
High carbon chrome bearing steel(Gcr15) is the standard material for bearing ring & rolling elements, also carbon steel & stainless steel will be used upon request. The chemical composition of Gcr15 is listed in the below table.

CHEMICAL COMPOSITION OF BEARING STEEL




Steel No.

Symbol

Chemical Composition(Wt%)

Gcr15

AISI 52100

C

0.95-1.05

Cr

1.30-1.65

Si

0.15-0.35

Mn

0.2-0.4

P

<0.027

S

<0.02


THE CONTRAST OF GCR15 OF EACH COUNTRY


China

ISO

USA

Japan

Germany

France

Sweden

GB

Gcr15

 

683/xv11

AISI

52100

JIS

SUJ2

DIN

100Cr6

NF

100C6

 

SKF3


CAGES
In general, TIANHE cages are pressed steel ribbon cages & pressed steel snap cages. For extra-high speed application, synthetic-resin, stainless steel, nylons(Phenolic resins) will be used upon request.

SHIELDS & SEALS

SPCC is the main material for TIANHE shields, and carbon steel & stainless steel can be used upon request. Buna Nitrile is standard sealing material we use, while fluorocarbon, silicone, and Teflon seals are commonly specified for high temperatures.

 

LUBRICATION

Different types of greases can be supplied for shielded & sealed bearings and oil for open bearings.

TIANHE Bearings can meet tolerance grades from ABEC-1 to ABEC-7 as requested dimension tolerance & runout accurancy.
COMPARISION TABLE OF TOLERANCE GRADE:


Country

Standard


Tolerance

Grade


China

GB

0

6

5

4

American

ANSI

ABEC-1

ABEC-3

ABEC-5

ABEC-7


ISO

0

6

5

4

Germany

DIN

P0

P6

P5

P4

Japan

JIS

P0

P6

P5

P4

The radual clearances of our bearings can be classified into C2, Standard, C3, C4 & C5 according to customer's request.


TABLE OF RADIAL CLEARANCE(┬Ám)


Bore Diameter

C2

Standard

C3

C4

C5

over

to

Min

Max

Min

Max

Min

Max

Min

Max

Min

Max

2.5

6

0

7

2

13

8

23

-

-

-

-

6

10

0

7

2

13

8

23

14

29

20

37

10

18

0

9

3

19

11

25

18

33

25

45

18

24

0

10

5

20

13

28

20

36

28

48

24

30

1

11

5

20

13

28

23

41

30

53

30

40

1

11

6

20

15

33

28

46

40

64

NOTE
CGroup clearance only for bearings over ABEC-3 accurancy.


Vibration and Noise
The vibration and noise of bearing in four classes Z1, Z2, Z3 and Z4, It is measured by the instrument of S09-1, For special requirement, it is measured by BVT-1 and classified as V1, V2, and V3, The date are shown tables, different vibration & noise requirement should be menrioned in order.
TOLERANCE DATE FOR VIBRATION OF SINGLE BEARING

d

mm

 

V

V1

V2

V3

Low

Brand

Medium

Brand

High

Brand

Low

Brand

Medium

Brand

High

Brand

Low

Brand

Medium

Brand

High

Brand

Low

Brand

Medium

Brand

High

Brand

5

110

72

60

90

60

50

58

36

30

35

21

18

6

110

72

60

90

60

50

58

36

30

35

21

18

7

130

96

80

110

80

65

72

48

40

44

28

24

8

130

96

80

110

80

65

72

48

40

44

28

24

9

130

96

80

110

80

65

72

48

40

44

28

24

10

160

120

100

140

100

65

90

60

50

55

35

30

12

160

120

100

140

100

85

90

60

50

55

35

30

15

210

150

120

180

130

100

110

78

60

65

46

35

17

210

150

120

180

130

100

110

78

60

65

46

35

20

260

190

150

220

160

125

130

100

75

80

60

45

22

260

190

150

220

160

125

130

100

75

80

60

45

25

260

190

150

220

160

125

130

100

75

80

60

45

28

260

190

150

220

160

125

130

100

75

80

60

45

30

300

240

190

250

200

160

150

120

100

90

75

60

32

300

240

190

250

200

160

150

120

100

90

75

60

35

300

240

190

250

200

160

150

120

100

90

75

60

40

360

300

260

300

250

220

180

150

130

110

90

80


 

MAXIMUM VIBRATION ACCELERATION OF SINGLE BEARING


d

mm

Diameter Series(0)

Diameter Series(2)

Diameter Series(3)

Z

Z1

Z2

Z3

Z

Z1

Z2

Z3

Z4

Z

Z1

Z2

Z3

Z4

3

35

34

32

28

36

35

32

30

-

37

36

33

31

-

4

35

34

32

28

36

35

32

30

-

37

36

33

31

-

5

37

36

34

30

38

37

34

32

-

39

37

35

33

-

6

37

36

34

30

38

37

34

32

-

39

37

35

33

-

7

39

38

35

31

40

38

36

34

-

-

-

-

-

-

8

39

38

35

31

40

38

36

34

-

-

-

-

-

-

9

41

40

36

32

42

40

37

35

-

-

-

-

-

-

10

43

42

38

33

44

42

39

35

30

46

44

40

37

32

12

44

43

39

34

45

43

39

35

30

47

45

40

37

32

15

45

44

40

35

46

44

41

36

31

48

46

42

38

33

17

46

44

40

35

47

45

41

36

31

49

47

42

38

33

20

47

45

41

36

48

46

42

38

33

50

48

43

39

34

25

48

46

42

38

49

47

43

40

36

51

49

44

41

37

30

49

47

43

39

50

48

44

41

37

52

50

45

42

38

35

51

49

45

41

52

50

46

43

39

54

52

47

44

40

40

53

51

46

42

54

52

47

44

40

56

54

49

45

41

45

55

53

48

45

56

54

49

46

43

58

56

51

47

44

50

57

54

50

47

58

55

51

48

45

60

57

53

49

46

55

59

56

52

49

60

57

53

50

47

62

59

54

51

48

60

61

58

54

51

62

59

54

51

48

64

61

56

53

50