 |
带内圈滚针轴承
Needle Roller Bearings with Inner Ring
轴径
Shaft
Diameter
mm
|
型号
Designation
|
重量
Mass
g
|
尺寸Dimensions
|
基本额定载荷
Basic Load
Ratings
|
极限转速
Limiting
Speed
Rpm
|
原有型号
Original
Designation
|
|||||
d
|
f
|
D
|
B
|
r
min.
|
动 Cr
Dynamic
|
静 Cor
Static
|
|||||
Mm
|
N
|
||||||||||
10
|
NA4900
|
23
|
10
|
14
|
22
|
13
|
0.3
|
8.5
|
9.2
|
25000
|
4544900
|
12
|
NA4901
|
26
|
12
|
16
|
24
|
13
|
0.3
|
9.4
|
10.9
|
24000
|
4544901
|
15
|
NA4902
|
34
|
15
|
20
|
28
|
13
|
0.3
|
10.6
|
13.6
|
22000
|
4544902
|
17
|
NA4903
|
37
|
17
|
22
|
30
|
13
|
0.3
|
11
|
14.6
|
21000
|
4544903
|
20
|
NA4904
|
75.2
|
20
|
25
|
37
|
17
|
0.3
|
21
|
25.5
|
17000
|
4544904
|
22
|
NA49/22
|
80
|
22
|
28
|
39
|
17
|
0.3
|
22.8
|
29.5
|
16000
|
--
|
25
|
NA4905
|
88
|
25
|
30
|
42
|
17
|
0.3
|
23.6
|
31.5
|
15000
|
4544905
|
28
|
NA49/28
|
97.7
|
28
|
32
|
45
|
17
|
0.3
|
24.4
|
33.5
|
13000
|
--
|
30
|
NA4906
|
101
|
30
|
35
|
47
|
17
|
0.3
|
2.50
|
35.5
|
13000
|
4544906
|
32
|
NA49/32
|
158
|
32
|
40
|
52
|
20
|
0.6
|
30.5
|
47.5
|
12000
|
--
|
35
|
NA4907
|
170
|
35
|
42
|
55
|
20
|
0.6
|
31.5
|
50
|
10000
|
4544907
|
40
|
NA4908
|
230
|
40
|
48
|
62
|
22
|
0.6
|
43
|
67
|
9500
|
4544908
|
45
|
NA4909
|
271
|
45
|
52
|
68
|
22
|
0.6
|
45
|
73
|
8500
|
4544909
|
50
|
NA4910
|
274
|
50
|
58
|
72
|
22
|
0.6
|
47
|
80
|
8000
|
4544910
|
55
|
NA4911
|
393
|
55
|
63
|
80
|
25
|
1
|
58
|
100
|
7500
|
4544911
|
60
|
NA4912
|
426
|
60
|
68
|
85
|
25
|
1
|
60
|
108
|
7000
|
4544912
|
65
|
NA4913
|
456
|
65
|
72
|
90
|
25
|
1
|
61
|
112
|
6500
|
4544913
|
70
|
NA4914
|
728
|
70
|
80
|
100
|
30
|
1
|
84
|
156
|
6000
|
4544914
|
75
|
NA4915
|
775
|
75
|
85
|
105
|
30
|
1
|
86
|
162
|
5500
|
4544915
|
80
|
NA4916
|
878
|
80
|
90
|
110
|
30
|
1.1
|
89
|
174
|
5000
|
4544916
|
85
|
NA4917
|
1250
|
85
|
100
|
120
|
35
|
1.1
|
111
|
237
|
4800
|
4544917
|
90
|
NA4918
|
1312
|
90
|
105
|
125
|
35
|
1.1
|
114
|
250
|
4600
|
4544918
|
95
|
NA4919
|
1371
|
95
|
110
|
130
|
35
|
1.1
|
116
|
260
|
4400
|
4544919
|
100
|
NA4920
|
1900
|
100
|
115
|
140
|
40
|
1.1
|
128
|
270
|
4100
|
4544920
|
110
|
NA4922
|
2070
|
110
|
125
|
150
|
40
|
1.1
|
132
|
290
|
3800
|
4544922
|
120
|
NA4924
|
2860
|
120
|
135
|
165
|
45
|
1.1
|
181
|
390
|
3400
|
4544924
|
说明：
1、表中所列基本额定载荷、极限转速和重量，仅供选择参考用。
2、脂润滑时，极限转速为表列数值的60%。
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