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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)
7311A
7311DB
7311DF
7311DT
55
120
29
2
1
86000
61500
8750
6250
13.9
5000
6700
39.8
65
110
2
1.41
139000
123000
14200
12500
4000
5600
79.5
21.5
61
114
1
7311B
7311DB
7311DF
7311DT
55
120
29
2
1
79000
56500
8050
5750
14.4
4500
6300
51.2
65
110
2
1.45
128000
113000
13100
11500
3600
5000
102.4
44.4
61
114
1
7312A
7312DB
7312DF
7312DT
60
130
31
2.1
1.1
98000
71500
10000
7250
13.9
4800
6300
42.9
72
118
2
1.74
159000
143000
16200
14500
3800
5000
85.9
23.9
67
123
1
7312B
7312DB
7312DF
7312DT
60
130
31
2.1
1.1
90000
65500
9200
6700
14.4
4300
5600
55.4
72
118
2
1.78
146000
131000
14900
13400
3400
4500
110.7
48.7
67
123
1
7313A
7313DB
7313DF
7313DT
65
140
33
2.1
1.1
111000
82000
11300
8350
14
4300
6000
46.1
77
128
2
2.12
180000
164000
18400
16700
3600
4800
92.2
26.2
72
133
1
7313B
7313DB
7313DF
7313DT
65
140
33
2.1
1.1
102000
75500
10400
7700
14.5
3800
5300
59.5
77
128
2
2.17
166000
151000
16900
15400
3200
4300
119
53
72
133
1
7314A
7314DB
7314DF
7314DT
70
150
35
2.1
1.1
125000
93500
12700
9550
14.2
4000
5300
49.3
82
138
2
2.6
203000
187000
20700
19100
3200
4300
98.5
28.5
77
143
1
7314B
7314DB
7314DF
7314DT
70
150
35
2.1
1.1
114000
86000
11700
8750
14.5
3600
5000
63.6
82
138
2
2.65
186000
172000
19000
17500
1800
4000
127.3
57.3
77
143
1
7315A
7315DB
7315DF
7315DT
75
160
37
2.1
1.1
136000
106000
13800
10800
14
3800
5000
52.4
87
148
2
3.13
221000
212000
22500
21600
3000
4000
104.8
30.8
82
153
1
7315B
7315DB
7315DF
7315DT
75
160
37
2.1
1.1
125000
97500
12700
9900
14.5
3400
4800
67.8
87
148
2
3.19
202000
195000
20600
19800
2800
3800
135.6
61.6
82
153
1
7312A
7312DB
7312DF
7312DT
60
130
31
2.1
1.1
98000
71500
10000
7250
13.9
4800
6300
42.9
72
118
2
1.74
159000
143000
16200
14500
3800
5000
85.9
23.9
67
123
1
7312B
7312DB
7312DF
7312DT
60
130
31
2.1
1.1
90000
65500
9200
6700
14.4
4300
5600
55.4
72
118
2
1.78
146000
131000
14900
13400
3400
4500
110.7
48.7
67
123
1
7313A
7313DB
7313DF
7313DT
65
140
33
2.1
1.1
111000
82000
11300
8350
14
4300
6000
46.1
77
128
2
2.12
180000
164000
18400
16700
3600
4800
92.2
26.2
72
133
1
7313B
7313DB
7313DF
7313DT
65
140
33
2.1
1.1
102000
75500
10400
7700
14.5
3800
5300
59.5
77
128
2
2.17
166000
151000
16900
15400
3200
4300
119
53
72
133
1
7314A
7314DB
7314DF
7314DT
70
150
35
2.1
1.1
125000
93500
12700
9550
14.2
4000
5300
49.3
82
138
2
2.6
203000
187000
20700
19100
3200
4300
98.5
28.5
77
143
1
7314B
7314DB
7314DF
7314DT
70
150
35
2.1
1.1
114000
86000
11700
8750
14.5
3600
5000
63.6
82
138
2
2.65
186000
172000
19000
17500
1800
4000
127.3
57.3
77
143
1
7315A
7315DB
7315DF
7315DT
75
160
37
2.1
1.1
136000
106000
13800
10800
14
3800
5000
52.4
87
148
2
3.13
221000
212000
22500
21600
3000
4000
104.8
30.8
82
153
1
7315B
7315DB
7315DF
7315DT
75
160
37
2.1
1.1
125000
97500
12700
9900
14.5
3400
4800
67.8
87
148
2
3.19
202000
195000
20600
19800
2800
3800
135.6
61.6
82
153
1
7316A
7316DB
7316DF
7316DT
80
170
39
2.1
1.1
147000
119000
15000
12100
14
3600
4800
55.6
92
158
2
3.71
239000
238000
24400
24200
2800
3800
111.2
33.2
87
163
1
7316B
7316DB
7316DF
7316DT
80
170
39
2.1
1.1
135000
109000
13800
11100
14.5
3200
4300
71.9
92
158
2
3.79
219000
218000
22400
22300
2600
3400
143.9
65.9
87
163
1
7317A
7317DB
7317DF
7317DT
85
180
41
3
1.1
159000
133000
16200
13500
14.1
3400
4500
58.8
99
166
2.5
4.33
258000
265000
26300
27000
2600
3600
117.5
35.5
92
173
1
7317B
7317DB
7317DF
7317DT
85
180
41
3
1.1
146000
122000
14800
12400
14.6
3000
4000
76.1
99
166
2.5
4.43
236000
244000
24100
24800
2400
3200
152.2
70.2
92
173
1
7318A
7318DB
7318DF
7318DT
90
190
43
3
1.1
171000
147000
17400
15000
14.1
3200
4300
61.9
104
176
2.5
5.06
277000
294000
28300
30000
2600
3400
123.8
37.8
97
183
1
7318B
7318DB
7318DF
7318DT
90
190
43
3
1.1
156000
135000
15900
13800
14.6
2800
3800
80.2
104
176
2.5
5.17
254000
270000
25900
27600
2200
3000
160.5
74.5
97
183
1
7319A
7319DB
7319DF
7319DT
95
200
45
3
1.1
183000
162000
18600
16600
14.1
3000
4000
65.1
109
186
2.5
5.83
297000
325000
30500
33000
2400
3200
130.2
40.2
102
193
1
7319B
7319DB
7319DF
7319DT
95
200
45
3
1.1
167000
149000
17100
15200
14.6
2600
3600
84.3
109
186
2.5
5.98
272000
298000
27700
30500
2200
3000
168.7
78.7
102
193
1
7316A
7316DB
7316DF
7316DT
80
170
39
2.1
1.1
147000
119000
15000
12100
14
3600
4800
55.6
92
158
2
3.71
239000
238000
24400
24200
2800
3800
111.2
33.2
87
163
1
7316B
7316DB
7316DF
7316DT
80
170
39
2.1
1.1
135000
109000
13800
11100
14.5
3200
4300
71.9
92
158
2
3.79
219000
218000
22400
22300
2600
3400
143.9
65.9
87
163
1
7317A
7317DB
7317DF
7317DT
85
180
41
3
1.1
159000
133000
16200
13500
14.1
3400
4500
58.8
99
166
2.5
4.33
258000
265000
26300
27000
2600
3600
117.5
35.5
92
173
1
7317B
7317DB
7317DF
7317DT
85
180
41
3
1.1
146000
122000
14800
12400
14.6
3000
4000
76.1
99
166
2.5
4.43
236000
244000
24100
24800
2400
3200
152.2
70.2
92
173
1
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