Cylindrical Roller Bearings
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
|
||||||||||
20
|
N204E
|
140
|
20
|
47
|
14
|
1
|
0.6
|
14700
|
7350
|
15000
|
2204E
|
|
NU204E
|
140
|
20 |
47
|
14
|
1
|
0.6
|
14700
|
7350 |
15000 |
32204E
|
|
NJ204E
|
140
|
20 |
47
|
14
|
1
|
0.6
|
14700
|
7350 |
15000 |
42204E
|
|
N304E
|
201
|
20 |
52
|
15
|
1.1
|
0.6
|
20500
|
10400
|
12000
|
2304E
|
|
NU304E
|
201
|
20 |
52
|
15
|
1.1
|
0.6
|
20500
|
10400 |
12000 |
32304E
|
|
NJ304E
|
201
|
20 |
52
|
15
|
1.1
|
0.6
|
20500
|
10400 |
12000 |
42304E
|
25
|
N205E
|
134
|
25
|
52
|
15
|
1
|
0.6
|
16800
|
8800
|
12000 |
2205E
|
|
NU205E
|
148
|
25 |
52
|
15
|
1
|
0.6
|
16800
|
8800 |
12000 |
32205E
|
|
NJ205E
|
148
|
25 |
52
|
15
|
1
|
0.6
|
16800
|
8800 |
12000
|
42205E
|
|
N305E
|
256
|
25 |
62
|
17
|
1.1
|
0.6
|
28600
|
15000
|
9500
|
2305E
|
|
NU305E
|
298
|
25 |
62
|
17
|
1.1
|
0.6
|
28600
|
15000 |
9500 |
32305E
|
|
NJ305E
|
298
|
25 |
62
|
17
|
1.1
|
0.6
|
28600
|
15000 |
9500 |
42305E
|
30
|
N206E
|
211
|
30 |
62
|
16
|
1
|
0.6
|
22400
|
12000
|
10000
|
2206E
|
|
NU206E
|
214
|
30 |
62
|
16
|
1
|
0.6
|
22400
|
12000 |
10000 |
32206E
|
|
NJ206E
|
240
|
30 |
62
|
16
|
1
|
0.6
|
22400
|
12000 |
10000 |
42206E
|
|
N306E
|
410
|
30 |
72
|
19
|
1.1
|
1.1
|
36900
|
20000
|
8500
|
2306E
|
|
NU306E
|
410
|
30 |
72
|
19
|
1.1
|
1.1
|
36900
|
20000 |
8500 |
32306E
|
|
NJ306E
|
410
|
30 |
72
|
19
|
1.1
|
1.1
|
36900
|
20000 |
8500 |
42306E
|
35
|
N207E
|
298
|
35 |
72
|
17
|
1.1
|
0.6
|
31900
|
17600
|
9000
|
2207E
|
|
NU207E
|
310
|
35 |
72
|
17
|
1.1
|
0.6
|
31900
|
17600 |
9000 |
32207E
|
|
NJ207E
|
339
|
35 |
72
|
17
|
1.1
|
0.6
|
31900
|
17600 |
9000 |
42207E
|
|
N307E
|
516
|
35 |
80
|
21
|
1.5
|
1.1
|
44600
|
25000
|
8000
|
2307E
|
|
NU307E
|
526
|
35 |
80
|
21
|
1.5
|
1.1
|
44600
|
25000 |
8000 |
32307E
|
|
NJ307E
|
562
|
35 |
80
|
21
|
1.5
|
1.1
|
44600
|
25000 |
8000 |
42307E
|
40
|
N208E
|
376
|
40 |
80
|
18
|
1.1
|
1.1
|
41800
|
24000
|
8500
|
2208E
|
|
NU208E
|
381
|
40 |
80
|
18
|
1.1
|
1.1
|
41800
|
24000 |
8500 |
32208E
|
|
NJ208E
|
392
|
40 |
80
|
18
|
1.1
|
1.1
|
41800
|
24000 |
8500 |
42208E
|
|
N208E
|
640
|
40 |
90
|
23
|
1.5
|
1.1
|
56100
|
32500
|
6700
|
2308E
|
|
NU208E
|
650
|
40 |
90
|
23
|
1.5
|
1.1
|
56100
|
32500 |
6700 |
32308E
|
|
NJ208E
|
726
|
40 |
90
|
23
|
1.5
|
1.1
|
56100
|
32500 |
6700 |
42308E
|
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、
轴承的保持架如由塑料制成,在型号后加TN,允许工作温度:120℃连续,150℃临时,180℃短期。
3、 脂润滑时,极限转速为表列数值的60%。
|