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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)
7918A5
7918DB
7918DF
7918DT
90
125
18
1.1
0.6
39500
43500
4000
4450
16.4
6300
8500
34.1
97
118
1
0.56
64000
87000
6500
8900
5000
7100
68.1
32.1
-
120
0.6
7918C
7918DB
7918DF
7918DT
90
125
18
1.1
0.6
41500
46000
4250
4700
16.5
7500
10000
23.4
97
118
1
0.563
67500
92000
6900
9400
6000
8500
46.8
10.8
-
120
0.6
7919A5
7919DB
7919DF
7919DT
95
130
18
1.1
0.6
40000
45500
4050
4650
16.4
6000
8500
35.2
102
123
1
0.603
64500
91000
6600
9250
4800
6700
70.5
34.5
-
125
0.6
7919C
7919DB
7919DF
7919DT
95
130
18
1.1
0.6
42500
48000
4300
4900
16.5
7100
10000
24.1
102
123
1
0.597
68500
96000
7000
9800
5600
8000
48.1
12.1
-
125
0.6
7920A5
7920DB
7920DF
7920DT
?100
140
20
1.1
0.6
47500
51500
4850
5250
16.3
5600
8000
38
107
133
1
0.804
77000
103000
7850
10500
4500
6300
76
36
-
135
0.6
7920C
7920DB
7920DF
7920DT
100
140
20
1.1
0.6
50000
54000
5100
5550
16.4
6700
9000
26.1
107
133
1
0.794
81500
108000
8300
11100
5300
7500
52.2
12.2
-
135
0.6
7921A5
7921DB
7921DF
7921DT
105
145
20
1.1
0.6
48000
54000
4900
5500
16.4
6600
7500
39.2
112
138
1
0.82
78500
108000
8000
11000
4300
6000
78.3
38.3
-
140
0.6
7921C
7921DB
7921DF
7921DT
105
145
20
1.1
0.6
51000
57000
5200
5800
16.5
6300
9000
26.7
112
138
1
0.826
83000
114000
8450
11600
5300
7100
53.5
13.5
-
140
0.6
7922A5
7922DB
7922DF
7922DT
110
150
20
1.1
0.6
49000
56000
5000
5750
16.4
5300
7100
40.3
117
143
1
0.877
79500
112000
8100
11500
4300
5600
80.6
40.6
-
145
0.6
7922C
7922DB
7922DF
7922DT
110
150
20
1.1
0.6
52000
59500
5300
6050
16.5
6300
8500
27.4
117
143
1
0.867
84500
119000
8600
12100
5000
6700
54.8
14.8
-
145
0.6
7924A5
7924DB
7924DF
7924DT
120
165
22
1.1
0.6
67500
77000
6900
7850
16.5
4800
6300
44.2
127
158
1
1.15
110000
154000
11200
15700
3800
5300
88.5
445
-
160
0.6
7924C
7924DB
7924DF
7924DT
120
165
22
1.1
0.6
72000
81000
7300
8300
16.4
5600
7500
30.1
127
158
1
1.15
117000
162000
11900
16600
4500
6300
60.2
16.2
-
160
0.6
7926A5
7926DB
7926DF
7926DT
130
180
24
1.5
1
74000
86000
7550
8750
16.5
4300
6000
48.1
139
171
1.5
1.54
120000
172000
12300
17500
3400
4800
96.3
48.3
-
174
1
7926C
7926DB
7926DF
7926DT
130
180
24
1.5
1
78500
91000
8000
9250
16.5
5000
7100
32.8
139
171
1.5
1.5
128000
182000
13000
18500
4000
5600
65.5
17.5
-
174
1
7928A5
7928DB
7928DF
7928DT
140
190
24
1.5
1
75000
90000
7650
9200
16.4
4000
5600
50.5
149
181
1.5
1.63
122000
180000
12400
18400
3200
4500
100.9
52.9
-
184
1
7928C
7928DB
7928DF
7928DT
140
190
24
1.5
1
79500
95500
8100
9700
16.5
4800
6700
34.1
149
181
1.5
1.63
129000
191000
13200
19400
3800
5300
68.2
20.2
-
184
1
7930A5
7930DB
7930DF
7930DT
150
210
28
2
1
96500
115000
9850
11800
16.5
3800
5000
56
160
200
2
2.97
157000
231000
16000
23500
3000
4000
112
56
-
204
1
7930C
7930DB
7930DF
7930DT
150
210
28
2
1
102000
122000
10400
12400
16.5
4300
6000
38.1
160
200
2
2.96
166000
244000
16900
24900
3600
4800
76.2
20.2
-
204
1
7932C
7932DB
7932DF
7932DT
160
220
28
2
1
106000
133000
10800
13500
16.5
3800
5000
39.4
170
210
2
3.1
173000
265000
17600
27000
3000
4000
78.9
22.9
-
214
1
7934C
7934DB
7934DF
7934DT
170
230
28
2
1
113000
148000
11500
15100
16.4
3600
4800
40.8
180
220
2
3.36
183000
297000
18700
30000
2800
3800
81.6
25.6
-
224
1
7936C
7936DB
7936DF
7936DT
180
250
33
2
1
145000
184000
14800
18800
16.5
3200
4500
45.3
190
240
2
4.9
236000
370000
24000
37500
2600
3600
90.6
24.6
-
244
1
7938C
7938DB
7938DF
7938DT
190
260
33
2
1
147000
192000
15000
19600
16.5
3000
4300
46.6
200
250
2
4.98
239000
385000
24400
39000
2400
3400
93.3
27.3
-
254
1
7940C
7940DB
7940DF
7940DT
200
280
38
2.1
1.1
189000
244000
19300
24900
16.4
2800
4000
51.2
212
268
2
6.85
305000
490000
31500
50000
2200
3200
102.3
26.3
-
273
1
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