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31300 Series
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Designation
Principal dimensions(mm)
Basic load ratings(KN)
Pu
Speed ratings(rpm)
Weight(Kg)
ISO335
Dimensions (mm)
Abutment and fillet dimensions (mm)
Value
d1
D
B
dyc(Cr)
stc(Cor)
Speed Ratings
Limiting Speed
Dimensions (ABMA)
d
d1~
B
C
r1,2(min)
r3,4(min)
a
da(max)
db(min)
Da(min)
Da(max)
Db(min)
Ca(min)
Cb(min)
ra(max)
rb(max)
e
Y
Yo
31305J2
25
62
18.25
38
40
4.4
7500
11000
0.26
7FB
25
45.8
17
13
1.5
1.5
20
34
32
47
55
59
3
5
1.5
1.5
0.83
0.72
0.4
31306J2/Q
30
72
20.75
55
50
5.7
7500
9500
0.39
7FB
30
52.7
19
14
1.5
1.5
22
40
37
55
65
68
3
6.5
1.5
1.5
0.83
0.72
0.4
31307J2/Q
35
80
22.75
71
67
7.8
6300
8500
0.52
7FB
35
59.6
21
15
2
1.5
25
45
44
62
71
76
3
7.5
2
1.5
0.83
0.72
0.4
31308J2/QCL7C
40
90
25.25
85
81.5
9.5
5600
7500
0.72
7FB
40
67.1
23
17
2
1.5
28
51
49
71
81
86
3
8
2
1.5
0.83
0.72
0.4
31309J2/QCL7C
45
100
27.25
106
102
12.5
5000
6700
0.95
7FB
45
74.7
25
18
2
1.5
31
57
53
79
91
95
4
9
2
1.5
0.83
0.72
0.4
31310J2/QCL7C
50
110
29.25
122
120
14.3
4500
6000
1.20
7FB
50
81.5
27
19
2.5
2
34
62
60
87
100
104
4
10
2
2
0.83
0.72
0.4
31311J2/QCL7C
55
120
31.5
140
137
16.6
4300
5600
1.55
7FB
55
88.4
29
21
2.5
2
37
68
65
94
112
113
4
10.5
2
2
0.83
0.72
0.4
31312J2/QCL7C
60
130
33.5
166
166
20.4
3800
5300
1.90
7FB
60
95.9
31
22
3
2.5
39
74
72
103
118
123
5
11.5
2.5
2
0.83
0.72
0.4
31313J2/QCL7C
65
140
36
190
193
23.6
3600
4800
2.35
7GB
65
103
33
23
3
2.5
42
80
77
111
128
132
5
13
2.5
2
0.83
0.72
0.4
31314J2/QCL7C
70
150
38
216
220
27
3400
4500
2.95
7GB
70
110
35
25
3
2.5
45
85
82
118
138
141
5
13
2.5
2
0.83
0.72
0.4
31315J2/QCL7C
75
160
40
240
245
29
3200
4300
3.50
7GB
75
116
37
26
3
2.5
48
91
87
127
148
151
6
14
2.5
2
0.83
0.72
0.4
31316J1/QCL7C
80
170
42.5
260
265
32
3000
4000
4.05
7GB
80
124
39
27
3
2.5
52
97
92
134
158
159
6
15.5
2.5
2
0.83
0.72
0.4
31317J2
85
180
44.5
242
285
33.5
2600
3800
4.60
7GB
85
131
41
28
4
3
55
103
99
143
166
169
6
16.5
3
2.5
0.83
0.72
0.4
31318J2
90
190
46.5
264
315
36.5
2400
3400
5.90
7GB
90
138
43
30
4
3
57
109
105
151
176
179
5
16.5
3
2.5
0.83
0.72
0.4
31319J2
95
200
49.5
292
355
39
2400
3400
6.95
7GB
95
145
45
32
4
3
60
114
110
157
186
187
5
17.5
3
2.5
0.83
0.72
0.4
31320XJ2/CL7CVQ051
100
215
56.5
430
465
51
2400
3000
8.60
7GB
100
158
51
35
4
3
65
121
115
168
201
202
7
21.5
3
2.5
0.83
0.72
0.4
31322XJ2
110
240
63
457
585
62
1900
2800
12.0
7GB
110
176
57
38
4
3
72
135
125
188
226
224
7
25
3
2.5
0.83
0.72
0.4
31324XJ2
120
260
68
539
695
73.5
1700
2400
15.5
7GB
120
190
62
42
4
3
78
145
135
203
245
244
9
26
3
2.5
0.83
0.72
0.4
31326XJ2
130
280
72
605
780
81.5
1600
2400
18.5
7GB
130
204
66
44
5
4
84
157
150
218
263
261
8
28
4
3
0.83
0.72
0.4
31328XJ2
140
300
77
693
900
88
1500
2200
24.5
7GB
140
219
70
47
5
4
90
169
160
235
283
280
9
30
4
3
0.83
0.72
0.4
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