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NKI Series  
Bearing No.
Boundary dimensions(mm)
Basic load ratings(N)
Limiting speeds(rpm)
Mass(g)
d
Fw
D
B
Cr
Cor
Oil
≈
NKI8
8
14
25
16
12400
11300
21500
46
NKI9/12
9
12
19
12
6200
7002
21700
14.6
NKI10/16
10
14
22
16
9808
10500
19650
27.3
NKI12/20
12
16
24
20
14000
18400
21000
39
NKI15/16
15
19
27
16
8847
12853
19100
38
NKI15/20
15
19
27
20
12347
19053
19100
45.7
NKI17/16
17
21
29
16
13000
18200
20000
41.4
NKI20/16
20
24
32
16
10800
17000
16700
48.5
NKI22/16
22
25
34
16
8721
15340
16200
50
NKI25/30
25
29
38
30
31500
56000
14000
115
NKI35/30
35
40
50
30
22200
51350
11134
165
NKI40/20
40
45
55
20
22000
48000
10127
124
NKI40/30
40
45
55
30
35000
86000
10127
184
NKI42/20
42
47
57
20
26000
52500
9500
138
NKI45/25
45
50
62
25
36000
70000
8567
218
NKI45/35
45
50
62
35
41500
102000
8567
289
NKI50/25
50
55
68
25
32000
78000
7890
262
NKI55/35
55
60
72
35
48000
126800
7256
357
NKI60/25
60
68
82
25
35500
85000
7156
388
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