Miniature ball bearing
Small ball bearing
Flange bearing
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Miniature Ball Bearing
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Metric Series
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Inch series
Metric Series
Metric series
Dimensions(mm)
Load ratings
(N)
Limiting speed
*1000(rpm)
Designation
d
D
B
B1
r
r1
Cr(N)
Cor(N)
Grease
Oil
Open
Shiled
Sealed
3
6
2
2.5
0.08
0.08
206
73
71
80
MR63
MR63ZZ
-
-
7
2
3
0.1
0.1
384
129
63
75
683
683ZZ
-
-
8
2.5
-
0.15
-
395
141
60
67
MR83
-
-
-
8
3
4
0.15
0.15
553
176
60
67
693
693ZZ
-
-
9
2.5
4
0.2
0.15
634
219
56
67
MR93
MR93ZZ
-
-
9
3
5
0.15
0.15
634
219
56
67
603
603ZZ
-
-
10
4
4
0.15
0.15
641
226
50
60
623
623ZZ
2RZ
2RS
13
5
5
0.2
0.2
1306
187
40
48
633
633ZZ
2RZ
2RS
4
7
2
-
0.08
-
311
115
60
67
MR74
-
-
-
7
-
2.5
-
0.08
252
106
60
67
-
MR74ZZ
-
-
8
2
3
0.15
0.1
391
140
56
67
MR84
MR84ZZ
-
-
9
2.5
4
0.1
0.1
641
226
53
63
684
684ZZ
2RZ
2RS
10
3
4
0.2
0.15
708
266
50
60
MR104
MR104ZZ
2RZ
2RS
11
4
4
0.15
0.15
959
347
48
56
694
694ZZ
2RZ
2RS
12
4
4
0.2
0.2
959
347
48
56
604
604ZZ
2RZ
2RS
13
5
5
0.2
0.2
1306
487
40
48
624
624ZZ
2RZ
2RS
16
5
5
0.3
0.3
1735
671
36
43
634
634ZZ
2RZ
2RS
5
8
2
-
0.08
-
308
120
53
63
MR85
-
-
-
8
-
2.5
-
0.08
218
90
53
63
-
MR85ZZ
-
-
9
2.5
3
0.1
0.1
495
207
50
60
MR95
MR95ZZ
-
-
10
3
4
0.1
0.1
714
276
50
60
MR105
MR105ZZ
2RZ
2RS
11
-
4
-
0.15
714
276
48
56
-
MR115ZZ
2RZ
2RS
11
3
5
0.15
0.15
714
276
45
53
685
685ZZ
2RZ
2RS
13
4
4
0.2
0.2
1074
422
43
50
695
695ZZ
2RZ
2RS
14
5
5
0.2
0.2
1329
508
40
50
605
605ZZ
2RZ
2RS
16
5
5
0.3
0.3
1735
671
36
43
625
625ZZ
2RZ
2RS
19
6
6
0.3
0.3
2336
896
32
40
635
635ZZ
2RZ
2RS
6
10
2.5
3
0.15
0.1
457
194
45
53
MR106
MR106ZZ
-
-
12
3
4
0.2
0.15
831
363
43
50
MR126
MR126ZZ
2RZ
2RS
13
3.5
5
0.15
0.15
1083
438
40
50
686
686ZZ
2RZ
2RS
15
5
5
0.2
0.2
1470
599
40
45
696
696ZZ
2RZ
2RS
17
6
6
0.3
0.3
2265
839
38
45
606
606ZZ
2RZ
2RS
19
6
6
0.3
0.3
2240
912
32
40
626
626ZZ
2RZ
2RS
22
7
7
0.3
0.3
3297
1368
30
36
636
636ZZ
2RZ
2RS
7
11
2.5
3
0.15
0.1
449
199
43
50
MR117
MR117ZZ
-
-
13
3
4
0.2
0.15
880
414
40
48
MR137
MR137ZZ
-
-
14
3.5
5
0.15
0.15
1175
511
40
50
687
687ZZ
2RZ
2RS
17
5
5
0.3
0.3
1606
712
36
43
697
697ZZ
2RZ
2RS
19
6
6
0.3
0.3
2240
912
36
43
607
607ZZ
2RZ
2RS
22
7
7
0.3
0.3
3297
1368
30
36
627
627ZZ
2RZ
2RS
26
9
9
0.3
0.3
4578
1970
28
34
637
637ZZ
2RZ
2RS
8
12
2.5
3.5
0.15
0.1
506
249
40
48
MR128
MR128ZZ
-
-
14
3.5
4
0.2
0.15
819
386
38
45
MR148
MR148ZZ
2RZ
2RS
16
4
5
0.2
0.2
1606
712
36
43
688
688ZZ
2RZ
2RS
19
6
6
0.3
0.3
2240
912
36
43
698
698ZZ
2RZ
2RS
22
7
7
0.3
0.3
3297
1368
34
40
608
608ZZ
2RZ
2RS
24
8
8
0.3
0.3
3297
1368
28
34
628
628ZZ
2RZ
2RS
28
9
9
0.3
0.3
4578
1970
28
34
638
638ZZ
2RZ
2RS
9
14
3
4.5
0.1
0.1
919
468
36
42
679
679ZZ
-
-
17
4
5
0.2
0.2
1724
813
36
43
689
689ZZ
2RZ
2RS
20
6
6
0.3
0.3
1606
712
34
40
699
699ZZ
2RZ
2RS
24
7
7
0.3
0.3
3297
1368
32
38
609
609ZZ
2RZ
2RS
26
8
8
0.3
0.3
4578
1970
28
34
629
629ZZ
2RZ
2RS
30
10
10
0.6
0.6
4578
1970
24
30
639
639ZZ
2RZ
2RS
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