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7300 Series
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7300 Series
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Bearing Numbers
Principal dimensions(mm)
Basic load ratings(N)
Basic load ratings(kgf)
Value
Limiting Speed (rpm)
Distance of action point(mm)
Abutment and fillet dimensions
Weight
Basic load ratings(duplex bearing) (N)
Basic load ratings(duplex bearing) (kgf)
Limiting Speed(duplex bearing) (rpm)
Distance of action point (duplex bearing)(a0)
Installation dimensions(duplex bearing)
Single row
DB
DF
DT
d
D
B
r(min)
r1(min)
Cr
Cor
Cr
Cor
fo
Grease
Oil
a
da(min)
Da(max)
ra(max)
(kg)
Cr
Cor
Cr
Cor
Grease
Oil
back-to-back arrangement
face-to-face arrangement
db(min)
Db(max)
rb(max)
7300A
7300DB
7300DF
7300DT
10
35
11
0.6
0.3
9300
4300
950
440
12.2
20000
26000
12
15
30
0.6
0.053
15100
8600
1540
880
16000
22000
24
2
12.5
32.5
0.3
7300B
7300DB
7300DF
7300DT
10
35
11
0.6
0.3
8750
4050
890
410
12.9
18000
24000
14.9
15
30
0.6
0.054
14200
8100
1450
825
14000
20000
29.9
7.9
12.5
32.5
0.3
7301A
7301DB
7301DF
7301DT
12
37
12
1
0.6
9450
4500
965
460
12.7
18000
24000
13.1
18
31
1
0.06
15400
9000
1570
915
15000
20000
26.1
2.1
17
32
0.6
7301B
7301DB
7301DF
7301DT
12
37
12
1
0.6
8850
4200
900
425
13.4
16000
22000
16.3
18
31
1
0.061
14400
8400
1460
855
13000
18000
32.6
8.6
17
32
0.6
7302A
7302DB
7302DF
7302DT
15
42
13
1
0.6
13400
7100
1370
720
13
16000
22000
14.7
21
36
1
0.084
21800
14200
2220
1440
13000
17000
29.5
3.5
20
37
0.6
7302B
7302DB
7302DF
7302DT
15
42
13
1
0.6
12500
6600
1270
670
13.6
14000
19000
18.5
21
36
1
0.086
20200
13200
2060
1340
11000
15000
36.9
10.9
20
37
0.6
7303A
7303DB
7303DF
7303DT
17
47
14
1
0.6
15900
8650
1630
880
13.1
14000
19000
16.2
23
41
1
0.116
25900
17300
2640
1760
11000
15000
32.5
4.5
22
42
0.6
7303B
7303DB
7303DF
7303DT
17
47
14
1
0.6
14800
8000
1510
820
13.7
13000
17000
20.4
23
41
1
0.118
24000
16000
2450
1640
10000
14000
40.9
12.9
22
42
0.6
7304A
7304DB
7304DF
7304DT
20
52
15
1.1
0.6
18700
10400
1910
1060
13.2
13000
17000
17.9
27
45
1
0.146
30500
20800
3100
2130
10000
13000
35.8
5.8
25
47
0.6
7304B
7304DB
7304DF
7304DT
20
52
15
1.1
0.6
17300
9650
1770
985
13.9
11000
15000
22.6
27
45
1
0.15
28200
19300
2870
1970
9000
12000
45.2
15.2
25
47
0.6
7305A
7305DB
7305DF
7305DT
25
62
17
1.1
0.6
26400
15800
2690
1610
13.5
10000
14000
21.1
32
55
1
0.235
43000
31500
4400
3250
8500
11000
42.1
8.1
30
57
0.6
7305B
7305DB
7305DF
7305DT
25
62
17
1.1
0.6
24400
14600
2490
1490
14.1
9000
13000
26.7
32
55
1
0.241
39500
29300
4050
2980
7500
10000
53.5
19.5
30
57
0.6
7306A
7306DB
7306DF
7306DT
30
72
19
1.1
0.6
33500
20900
3450
2130
13.6
9000
12000
24.2
37
65
1
0.346
54500
41500
5600
4250
7100
9500
48.4
10.4
35
67
0.6
7306B
7306DB
7306DF
7306DT
30
72
19
1.1
0.6
31000
19300
3150
1960
14.2
8000
11000
30.9
37
65
1
0.354
50500
38500
5150
3950
6300
8500
61.8
23.8
35
67
0.6
7307A
7307DB
7307DF
7307DT
35
80
21
1.5
1
40000
26300
4050
2680
13.9
8000
10000
27.1
44
71
1.5
0.464
65000
52500
6600
5350
6300
8500
54.2
12.2
41
74
1
7307B
7307DB
7307DF
7307DT
35
80
21
1.5
1
36500
24200
3750
2460
14.7
7100
9500
34.6
44
71
1.5
0.474
59500
48500
6100
4950
5600
7500
69.2
27.2
41
74
1
7304A
7304DB
7304DF
7304DT
20
52
15
1.1
0.6
18700
10400
1910
1060
13.2
13000
17000
17.9
27
45
1
0.146
30500
20800
3100
2130
10000
13000
35.8
5.8
25
47
0.6
7304B
7304DB
7304DF
7304DT
20
52
15
1.1
0.6
17300
9650
1770
985
13.9
11000
15000
22.6
27
45
1
0.15
28200
19300
2870
1970
9000
12000
45.2
15.2
25
47
0.6
7305A
7305DB
7305DF
7305DT
25
62
17
1.1
0.6
26400
15800
2690
1610
13.5
10000
14000
21.1
32
55
1
0.235
43000
31500
4400
3250
8500
11000
42.1
8.1
30
57
0.6
7305B
7305DB
7305DF
7305DT
25
62
17
1.1
0.6
24400
14600
2490
1490
14.1
9000
13000
26.7
32
55
1
0.241
39500
29300
4050
2980
7500
10000
53.5
19.5
30
57
0.6
7306A
7306DB
7306DF
7306DT
30
72
19
1.1
0.6
33500
20900
3450
2130
13.6
9000
12000
24.2
37
65
1
0.346
54500
41500
5600
4250
7100
9500
48.4
10.4
35
67
0.6
7306B
7306DB
7306DF
7306DT
30
72
19
1.1
0.6
31000
19300
3150
1960
14.2
8000
11000
30.9
37
65
1
0.354
50500
38500
5150
3950
6300
8500
61.8
23.8
35
67
0.6
7307A
7307DB
7307DF
7307DT
35
80
21
1.5
1
40000
26300
4050
2680
13.9
8000
10000
27.1
44
71
1.5
0.464
65000
52500
6600
5350
6300
8500
54.2
12.2
41
74
1
7307B
7307DB
7307DF
7307DT
35
80
21
1.5
1
36500
24200
3750
2460
14.7
7100
9500
34.6
44
71
1.5
0.474
59500
48500
6100
4950
5600
7500
69.2
27.2
41
74
1
7308A
7308DB
7308DF
7308DT
40
90
23
1.5
1
49000
33000
5000
3350
14
7100
9000
30.3
49
81
1.5
0.633
79500
66000
8100
6700
5600
7500
60.5
14.5
46
84
1
7308B
7308DB
7308DF
7308DT
40
90
23
1.5
1
45000
30500
4550
3100
14.5
6300
8500
38.8
49
81
1.5
0.648
73000
60500
7400
6200
5000
6700
77.5
31.5
46
84
1
7309A
7309DB
7309DF
7309DT
45
100
25
1.5
1
63500
43500
6450
4450
13.7
6300
8500
33.4
54
91
1.5
0.848
103000
87000
10500
8900
5000
6700
66.9
16.9
51
94
1
7309B
7309DB
7309DF
7309DT
45
100
25
1.5
1
58500
40000
5950
4100
14.3
5600
7500
42.9
54
91
1.5
0.869
95000
80500
9650
8200
4500
6000
85.8
35.8
51
94
1
7310A
7310DB
7310DF
7310DT
50
110
27
2
1
74000
52000
7550
5300
13.8
5600
7500
36.6
60
100
2
1.1
121000
104000
12300
10600
4500
6000
73.2
19.2
56
104
1
7310B
7310DB
7310DF
7310DT
50
110
27
2
1
68000
48000
6950
4900
14.4
5000
6700
47.1
60
100
2
1.12
111000
96000
11300
9800
4000
5600
94.1
40.1
56
104
1
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