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30300 Series
    Publish time 2018-09-29 09:46    

Tapered roller bearings  are generally of separable design and have tapered cone and cup raceway between which tapered rollers are arranged. Their design makes tapered roller bearings particularly suitable for carrying combined (radial and axial) load.
According to dimensional standard difference, tapered roller bearings can be grouped into metric and inch size series.

Bearing No.
Boundary dimensions
Basic load rating(kN)
Limiting speed
Mass
mm
Dynamic
Static
rpm
Kg
d
D
T
B
C
Rmin
rmin
Cr
Cor
Grease
Oil
≈
30302
15
42
14.25
13
11
1
1
22.9
21.7
9000
13000
0.096
30303
17
47
15.25
14
12
1
1
28.3
27.4
8500
12000
0.13
30304
20
52
16.25
15
13
1.5
1.5
33.2
33.3
8000
11000
0.166
30305
25
62
18.25
17
15
1.5
1.5
47
48.3
6700
9000
0.266
30306
30
72
20.75
19
16
1.5
1.5
59
63.9
5600
7500
0.391
30307
35
80
22.75
21
18
2
1.5
75.4
83.6
5000
6700
0.484
30308
40
90
25.25
23
20
2
1.5
90
108
4500
6000
0.751
30309
45
100
27.25
25
22
2
1.5
108
120
4000
5300
0.985
30310
50
110
29.25
27
23
2.5
2
130
159
3600
4800
1.28
30311
55
120
31.5
29
25
2.5
2
153
190
3200
4300
1.61
30312
60
130
33.5
31
26
3
2.5
170
211
3000
4000
1.95
30313
65
140
36
33
28
3
2.5
195
244
2600
3600
2.44
30314
70
150
38
35
30
3
2.5
187
220
2000
3000
2.99
30315
75
160
40
37
31
3
2.5
250
318
2200
3200
3.58
30316
80
170
42.5
39
33
3
2.5
278
356
2000
3000
4.27
30317
85
180
44.5
41
34
4
3
304
392
1900
2800
4.97
30318
90
190
46.5
43
36
4
3
341
445
1800
2600
5.79
30319
95
200
49.5
45
38
4
3
368
483
1800
2600
6.8
30320
100
215
51.5
47
39
4
3
402
490
1700
2400
8.2
30321
105
225
53.5
49
41
4
3
432
568
1600
2200
9.91
30322
110
240
54.5
50
42
4
3
471
619
1600
2200
11.5
30324
120
260
59.5
55
46
4
3
562
754
1500
2000
13.7
30326
130
280
63.75
58
49
5
4
639
864
1300
1800
17.1
30328
140
300
67.75
62
53
5
4
721
985
1200
1700
21.7
30330
150
320
72
65
55
5
4
825
1060
1100
1600
28.5
30332
160
340
75
68
58
5
4
880
1400
1100
1600
29
30334
170
360
80
72
62
5
4
1020
1340
950
1400
35