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7900 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)
7900A5
7900DB
7900DF
7900DT
?10
22
6
0.3
0.15
2880
1450
294
148
14.7
40000
56000
6.7
12.5
19.5
0.3
0.009
4700
2900
475
296
32000
43000
13.5
1.5
-
20.8
0.15
7900C
7900DB
7900DF
7900DT
10
22
6
0.3
0.15
3000
1520
305
155
14.1
48000
63000
5.1
12.5
19.5
0.3
0.009
4900
3050
500
310
38000
53000
10.3
1.7
-
20.8
0.15
7901A5
7901DB
7901DF
7901DT
12
24
6
0.3
0.15
3200
1770
325
181
15.2
38000
53000
7.2
14.5
21.5
0.3
0.011
5200
3550
530
360
30000
43000
14.4
2.4
-
22.8
0.15
7901C
7901DB
7901DF
7901DT
12
24
6
0.3
0.15
3350
1860
340
189
14.7
45000
63000
5.4
14.5
21.5
0.3
0.011
5450
3700
555
380
36000
50000
10.8
1.2
-
22.8
0.15
7902A5
7902DB
7902DF
7902DT
15
28
7
0.3
0.15
4550
2530
465
258
14.8
32000
43000
8.5
17.5
25.5
0.3
0.015
7400
5050
755
515
26000
34000
17
3
-
26.8
0.15
7902C
7902DB
7902DF
7902DT
15
28
7
0.3
0.15
4750
2640
485
270
14.5
38000
53000
6.4
17.5
25.5
0.3
0.015
7750
5300
790
540
30000
43000
12.8
1.2
-
26.8
0.15
7903A5
7903DB
7903DF
7903DT
17
30
7
0.3
0.15
4750
2800
485
286
15.1
30000
40000
9
19.5
27.5
0.3
0.017
7750
5600
790
570
24000
32000
18
4
-
28.8
0.15
7903C
7903DB
7903DF
7903DT
17
30
7
0.3
0.15
5000
2940
510
299
14.8
34000
48000
6.6
19.5
27.5
0.3
0.017
8150
5850
830
600
28000
38000
13.3
0.7
-
28.8
0.15
7904A5
7904DB
7904DF
7904DT
?20
37
9
0.3
0.15
6600
4050
675
410
15.2
24000
32000
11.1
22.5
34.5
0.3
0.036
10700
8100
1090
825
19000
26000
22.3
4.3
-
35.8
0.15
7904C
7904DB
7904DF
7904DT
20
37
9
0.3
0.15
6950
4250
710
430
14.9
28000
38000
8.3
22.5
34.5
0.3
0.036
11300
8500
1150
865
22000
32000
16.6
1.4
-
35.8
0.15
7905A5
7905DB
7905DF
7905DT
25
42
9
0.3
0.15
7450
5150
760
525
15.6
20000
28000
12.3
27.5
39.5
0.3
0.043
12100
10300
1230
1050
16000
22000
24.6
6.6
-
40.8
0.15
7905C
7905DB
7905DF
7905DT
25
42
9
0.3
0.15
7850
5400
800
555
15.5
24000
34000
9
27.5
39.5
0.3
0.042
12700
10800
1300
1110
19000
26000
18
0
-
40.8
0.15
7906A5
7906DB
7906DF
7906DT
30
47
9
0.3
0.15
7850
5950
800
605
16.1
18000
24000
13.5
32.5
44.5
0.3
0.049
12800
11900
1300
1210
14000
19000
27
9
-
45.8
0.15
7906C
7906DB
7906DF
7906DT
30
47
9
0.3
0.15
8300
6250
845
640
15.9
22000
28000
9.7
32.5
44.5
0.3
0.049
13500
12500
1380
1280
17000
24000
19.3
1.3
-
45.8
0.15
7907A5
7907DB
7907DF
7907DT
35
55
10
0.6
0.3
11400
8700
1170
885
16.1
15000
20000
15.5
40
50
0.6
0.074
18600
17400
1890
1770
12000
17000
31
11
-
52.5
0.3
7907C
7907DB
7907DF
7907DT
35
55
10
0.6
0.3
12100
9150
1230
930
15.7
18000
24000
11
40
50
0.6
0.074
19600
18300
2000
1860
14000
20000
22.1
2.1
-
52.5
0.3
7904A5
7904DB
7904DF
7904DT
?20
37
9
0.3
0.15
6600
4050
675
410
15.2
24000
32000
11.1
22.5
34.5
0.3
0.036
10700
8100
1090
825
19000
26000
22.3
4.3
-
35.8
0.15
7904C
7904DB
7904DF
7904DT
20
37
9
0.3
0.15
6950
4250
710
430
14.9
28000
38000
8.3
22.5
34.5
0.3
0.036
11300
8500
1150
865
22000
32000
16.6
1.4
-
35.8
0.15
7905A5
7905DB
7905DF
7905DT
25
42
9
0.3
0.15
7450
5150
760
525
15.6
20000
28000
12.3
27.5
39.5
0.3
0.043
12100
10300
1230
1050
16000
22000
24.6
6.6
-
40.8
0.15
7905C
7905DB
7905DF
7905DT
25
42
9
0.3
0.15
7850
5400
800
555
15.5
24000
34000
9
27.5
39.5
0.3
0.042
12700
10800
1300
1110
19000
26000
18
0
-
40.8
0.15
7906A5
7906DB
7906DF
7906DT
30
47
9
0.3
0.15
7850
5950
800
605
16.1
18000
24000
13.5
32.5
44.5
0.3
0.049
12800
11900
1300
1210
14000
19000
27
9
-
45.8
0.15
7906C
7906DB
7906DF
7906DT
30
47
9
0.3
0.15
8300
6250
845
640
15.9
22000
28000
9.7
32.5
44.5
0.3
0.049
13500
12500
1380
1280
17000
24000
19.3
1.3
-
45.8
0.15
7907A5
7907DB
7907DF
7907DT
35
55
10
0.6
0.3
11400
8700
1170
885
16.1
15000
20000
15.5
40
50
0.6
0.074
18600
17400
1890
1770
12000
17000
31
11
-
52.5
0.3
7907C
7907DB
7907DF
7907DT
35
55
10
0.6
0.3
12100
9150
1230
930
15.7
18000
24000
11
40
50
0.6
0.074
19600
18300
2000
1860
14000
20000
22.1
2.1
-
52.5
0.3
7908A5
7908DB
7908DF
7908DT
?40
62
12
0.6
0.3
14300
11200
1460
1140
16.1
14000
18000
17.9
45
57
0.6
0.11
23300
22300
2370
2270
11000
15000
35.8
11.8
-
59.5
0.3
7908C
7908DB
7908DF
7908DT
40
62
12
0.6
0.3
15100
11700
1540
1200
15.7
16000
22000
12.8
45
57
0.6
0.109
24600
23500
2510
2390
13000
18000
25.7
1.7
-
59.5
0.3
7909A5
7909DB
7909DF
7909DT
45
68
12
0.6
0.3
15100
12700
1540
1290
16.2
12000
17000
19.2
50
63
0.6
0.13
24600
25400
2510
2590
9500
13000
38.4
14.4
-
65.5
0.3
7909C
7909DB
7909DF
7909DT
45
68
12
0.6
0.3
16000
13400
1630
1360
16
14000
20000
13.6
50
63
0.6
0.129
26000
26800
2660
2730
12000
16000
27.1
3.1
-
65.5
0.3
7910A5
7910DB
7910DF
7910DT
50
72
12
0.6
0.3
15900
14200
1630
1450
16.4
11000
15000
20.2
55
67
0.6
0.132
25900
28400
2640
2900
9000
12000
40.5
16.5
-
69.5
0.3
7910C
7910DB
7910DF
7910DT
50
72
12
0.6
0.3
16900
15000
1720
1530
16.2
13000
18000
14.2
55
67
0.6
0.13
27400
30000
2800
3050
11000
15000
28.3
4.3
-
69.5
0.3
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