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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.
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
Wide Applications of DeepGroove Ball Bearings:
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.
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
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
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Business Type:
Manufacturer
Year Established:
2003
Ecer Certification：
Verified Supplier
We are Ningbo Kent Bearing Co., Ltd, one of the leading high-quality bearing manufacturer and supplier, established in 2003.
We registered the BUGAO Bearing trademark in 2003 and specialize in deep groove ball bearings
for electric motors, automobiles, household appliances, power tools, ...
We are Ningbo Kent Bearing Co., Ltd, one of the leading high-quality bearing manufacturer and supplier, established in 2003.
We registered the BUGAO Bearing trademark in 2003 and specialize in deep groove ball bearings
for electric motors, automobiles, household appliances, power tools, ...
