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Double Metal Shielded R188ZZ Ball Bearing Z1V1 Z2V2 Z3V3 Z4V4

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Double Metal Shielded R188ZZ Ball Bearing Z1V1 Z2V2 Z3V3 Z4V4

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Brand Name :BUGAO/NBKT
Model Number :R188, R188ZZ, R188-2RS
Certification :ISO9001:2015
Place of Origin :China
MOQ :1,000 sets
Price :Negoiatiable
Payment Terms :T/T
Supply Ability :30,000,000 sets
Delivery Time :Negotiable
Packaging Details :Single/Barrels Package
Bearing Name :R188ZZ Bearing
Material :Bearing Steel, Carbon Steel, Ceramic, etc
Precision :P0, P6, P5, P4
Clearance :C2, C0, C3, C4
Specification :Open, Z, ZZ, RZ, 2RZ, RS, 2RS
Closures :ABEC-1, ABEC-3, ABEC-5, ABEC-7,
Noise &Vibration :Z1V1, Z2V2, Z3V3, Z4V4
Bearing Life :Up to 10 years
HS Code :8482102000
OEM Service :Customization welcomed
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View Product Description

R188ZZ Double Metal Shielded Ball Bearing Chrome Steel P0 Z2 Bearing for Industrial Machine,Power Tools and Mechanical Equipment

  • 【Package & Size】R188ZZ rolling bearing. I.D.=1/4inch,O.D.=1/2inch,Thickness=3/16inch
  • 【Seal】R188ZZ bearings are metal Shielded on both side to keep lubricant in and prevent the intrusion of liquid impurities.High temperature resistance
  • 【Material】Chrome Steel(GCr15), corrosion resistance,durability and resistance to under heavy loads,Static load rating of 80 newtons and dynamic load rating of 207 newtons
  • 【Features】Low noise Z2, ABEC Tolerance 1 (P0), High speed. High temperature resistance. Resistance to high load. Suitable for kinds of applications.
  • 【Wide application】 Widely used in industrial machine, motorcycle, automobile, power tools and mechanical equipment and other kinds of field.

Double Metal Shielded R188ZZ Ball Bearing Z1V1 Z2V2 Z3V3 Z4V4

Double Metal Shielded R188ZZ Ball Bearing Z1V1 Z2V2 Z3V3 Z4V4

R Series Deep Groove Ball Bearings can be customed sizes, below specification chart is for your reference.

Technical Parameters of R Series Deep Groove Ball Bearing:

Basic
Bearing
No.

Bore d

Outer DiameterD

Width W

Radius r

Basic Load Rating KN

Open

Shield Seal

Dynamic
C

Static

C0

mm

inch

mm inch mm inch mm inch mm inch
R156 4.763 0.1875 7.938 0.3125 2.78 0.1094 3.18 0.1250 0.1 0.004 0.395 0.143
R166 4.763 0.1875 9.525 0.3750 3.18 0.1250 3.18 0.1250 0.1 0.004 0.71 0.268
R3 4.763 0.1875 12.700 0.5000 3.97 0.1562 4.98 0.1960 0.15 0.006 1.31 0.49
R3A 4.763 0.1875 12.700 0.5000 4.98 0.1960 4.98 0.1960 0.15 0.006 1.31 0.49
R168 6.350 0.2500 9.525 0.3750 3.18 0.1250 3.18 0.1250 0.1 0.004 0.268 0.136
R188 6.350 0.2500 12.700 0.5000 3.18 0.1250 4.76 0.1875 0.15 0.006 0.83 0.37
R4 6.350 0.2500 15.875 0.6250 4.98 0.1960 4.98 0.1960 0.2 0.008 1.48 0.615
R4A 6.350 0.2500 19.050 0.7500 5.56 0.2188 7.14 0.2812 0.3 0.012 2.34 0.885
R6 9.525 0.3750 22.225 0.8750 5.56 0.2188 7.14 0.2812 0.3 0.012 3.3 1.4
R8 12.70 0.5000 28.575 1.1250 6.35 0.2500 7.94 0.3125 0.3 0.012 3.912 2.245
R8-7 11.113 0.4375 28.575 1.1250 6.35 0.2500 0.3 0.012 3.912 2.245
R10 15.875 0.6250 34.925 1.3750 7.14 0.2812 8.73 0.3438 0.6 0.024 4.605 2.774
R12 19.050 0.7500 41.275 1.6250 7.94 0.3125 11.11 0.4375 0.6 0.024 7.246 4.445

R188ZZ Bearing Display

Double Metal Shielded R188ZZ Ball Bearing Z1V1 Z2V2 Z3V3 Z4V4

Double Metal Shielded R188ZZ Ball Bearing Z1V1 Z2V2 Z3V3 Z4V4

Wide Applications of Deep Groove Ball Bearings:

Double Metal Shielded R188ZZ Ball Bearing Z1V1 Z2V2 Z3V3 Z4V4

Customization Welcomed:

  • We can printing your brand (logo,artwork)on the shield or laser engraving your brand on the shield.

  • We can custom your packaging according to your design.

  • All copyright owned by clients and we promised don't disclose any information.

Packing and Shipping:

  • The deep groove ball bearings will be securely packaged individually, or tube packing or packed as customization packing

  • Shipping method is negotiable.

Double Metal Shielded R188ZZ Ball Bearing Z1V1 Z2V2 Z3V3 Z4V4

Double Metal Shielded R188ZZ Ball Bearing Z1V1 Z2V2 Z3V3 Z4V4

ABEC-1 Tolerance Class ABEC-1 (P0)

Inner Ring

Tolerance in um/s

d mm

Δdmp

9

Vdp²)0,1 Diameter Series

2,3,4

Vdmp

Kia

ΔBs

Vbs

over

including

high

low

max

max

max

high

low

max

1)0.6

2.5

0

-8

10

8

6

6

10

0

-40

12

2.5

10

0

-8

10

8

6

6

10

0

-120

15

10

18

0

-8

10

8

6

6

10

0

-120

20

18

30

0

-10

13

10

8

8

13

0

-120

20

30

50

0

-12

15

12

9

9

15

0

-120

20

50

80

0

-15

19

19

11

11

20

0

-150

25

Outer Ring

Tolerance in um/s

D mm

Δdmp

VDp2)4)Open Bearings Diameter Series

Capped Bearings2)3)

Vdmp

Kia

ΔBs

Vbs

9

0,1

2,3,4

2,3,4

over

including

high

low

max

max

max

high

low

max

1)2.5

6

0

-8

10

8

6

10

6

15

Identical to ΔBs and VBs of inner ring of same bearing

6

18

0

-8

10

8

6

10

6

15

18

30

0

-9

12

9

7

12

7

15

30

50

0

-11

14

11

8

16

8

20

50

80

0

-13

16

13

10

20

10

25

80

120

0

-15

19

19

11

26

11

35

120

150

0

-18

23

23

14

30

14

40

ABEC-3 Tolerance Class ABEC-3 (P6)

Inner Ring

Tolerance in um/s

d mm

Δdmp

9

Vdp²)0,1 Diameter Series

2,3,4

Vdmp

Kia

ΔBs

Vbs

over

including

high

low

max

max

max

high

low

max

11)0.6

2.5

0

-7

9

7

5

5

5

0

-40

12

2.5

10

0

-7

9

7

5

5

6

0

-120

15

10

18

0

-7

9

7

5

5

7

0

-120

20

18

30

0

-8

10

8

6

6

8

0

-120

20

30

50

0

-10

13

10

8

8

10

0

-120

20

50

80

0

-12

15

15

9

9

10

0

-150

25

Outer Ring

Tolerance in um/s

D mm

Δdmp

VDp2)4)Open Bearings Diameter Series

Capped Bearings2)3)

Vdmp

Kia

ΔBs

Vbs

9

0,1

2,3,4

2,3,4

over

including

high

low

max

max

max

high

low

max

1)2.5

6

0

-7

9

7

5

9

5

8

Identical to ΔBs and VBs of inner ring of same bearing

6

18

0

-7

9

7

5

9

5

8

18

30

0

-8

10

8

6

10

6

9

30

50

0

-9

11

9

7

13

7

10

50

80

0

-11

14

11

8

16

8

13

80

120

0

-13

16

16

10

20

10

18

120

150

0

-15

19

19

11

25

11

20

ABEC-5 Tolerance Class ABEC-5 (P5)

Inner Ring

Tolerance in um/s

d mm

Δdmp

Vdp²)Diameter Series

Vdmp

Kia

Sd

Sis3)

ΔBs

Vbs

9

0,1,2,3,4

over

including

high

low

max

3

max

max

max

High

Low

max

1)0.6

2.5

0

-5

5

4

3

4

7

7

0

-40

5

2.5

10

0

-5

5

4

3

4

7

7

0

-40

5

10

18

0

-5

5

4

3

4

7

7

0

-80

5

18

30

0

-6

6

5

3

4

8

8

0

-120

5

30

50

0

-8

8

6

4

5

8

8

0

-120

5

50

80

0

-9

9

7

5

5

8

8

0

-150

6

Outer Ring

Tolerance in um/s

D mm

Δdmp

Vdp²)Diameter Series

Vdmp

Kia

SD4) SD15)

Sea4)5)

ΔBs

Vbs

9

0,1,2,3,4

over

including

high

low

max

max

max

max

High

Low

max

1)2.5

6

0

-5

5

4

3

5

8

8

5

6

18

0

-5

5

4

3

5

8

8

5

18

30

0

-6

6

5

3

6

8

8

5

30

50

0

-7

7

5

4

7

8

8

5

50

80

0

-9

9

7

5

8

8

10

6

80

120

0

-10

10

8

5

10

9

11

8

120

150

0

-11

11

8

6

11

10

13

8

ABEC-7 Tolerance Class ABEC-7 (P4)

Inner Ring

Tolerance in um/s

d mm

Δdmp

Δds

Vdp²)Diameter Series

Vdmp

Kia

Sd

Sia

ΔBs

Vbs

7,8,9

1,7,2,3,4

over

including

high

low

high

low

max

max

max

max

max

High

low

Low

max

1)0.6

2.5

0

-4

0

-4

4

3

2

2.5

3

3

0

-40

-40

2.5

2.5

10

0

-4

0

-4

4

3

2

2.5

3

3

0

-40

-40

2.5

10

18

0

-4

0

-4

4

3

2

2.5

3

3

0

-80

-80

2.5

18

30

0

-5

0

-5

5

4

2.5

3

4

4

0

-120

-120

2.5

30

50

0

-6

0

-5

6

4

3

4

4

4

0

-120

-120

3

50

80

0

-7

0

-5

7

5

3.5

4

5

5

0

-150

-150

4

Outer Ring

Tolerance in um/s

D mm

Δdmp

Δds

Vdp²)Diameter Series

Vdmp

Kia

Sd

Sia

ΔBs

Vbs

7,8,9

1,7,2,3,4

over

including

high

low

high

low

max

max

max

max

max

High

low

max

1)2.5

6

0

-4

0

-4

4

3

2

3

4

5

Identical to ΔBs and VBs of inner ring of same bearing

2.5

6

18

0

-4

0

-4

4

3

2

3

4

5

2.5

18

30

0

-5

0

-5

5

4

2.5

4

4

5

2.5

30

50

0

-6

0

-6

6

5

3

5

4

5

2.5

50

80

0

-7

0

-7

7

5

3.5

5

4

5

3

80

120

0

-8

0

-8

8

6

4

6

5

6

4

120

150

0

-9

0

-9

9

7

5

7

5

7

5

Double Metal Shielded R188ZZ Ball Bearing Z1V1 Z2V2 Z3V3 Z4V4

Tolerance Data For Sibration of Single Bearing

D

V

V1

V2

V3

V4

mm

Low

Medium

High

Low

Medium

High

Low

Medium

High

Low

Medium

High

Low

Medium

High

3,4

80

44

44

60

35

32

48

26

22

31

16

15

28

10

10

5,6

110

72

60

74

48

40

58

36

30

35

21

18

32

11

11

7,8,9

130

96

80

92

66

54

72

48

40

44

28

24

38

12

12

10,12

160

120

100

120

80

70

90

60

50

55

35

30

45

14

15

15

210

150

120

150

100

85

110

78

60

65

46

35

52

18

18

17

210

150

120

150

100

85

110

78

60

65

46

35

52

25

25

20

260

190

150

180

125

100

130

100

75

80

60

45

60

25

25

22,25

260

190

150

180

125

100

130

100

75

80

60

45

60

30

32

28

260

190

150

180

125

100

130

100

75

80

60

45

60

35

40

30,32

300

240

190

200

150

130

150

120

100

90

75

60

70

35

40

35

300

240

190

200

150

130

150

120

100

90

75

60

70

42

45

40

360

300

260

240

180

160

180

150

130

110

90

80

82

50

50

45

360

300

260

240

180

160

180

150

130

110

90

80

82

60

60

50

420

320

320

280

200

200

210

160

160

125

100

100

95

70

70

Maximum Vibration Acceleration of Single Bearing

D

Diameter Series(0)

Diameter Series(2) Diameter Series(3)

mm

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

37

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

22

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

28

49

47

43

39

50

48

44

41

37

52

50

45

42

38

30

49

47

43

39

50

48

44

41

37

52

50

45

42

38

32

50

48

44

40

51

49

45

42

38

53

51

46

43

39

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

61

56

53

50

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