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31300 Series
(21)
ONLINE CATALOGUE
Technical Info
(4)
Bearing Material
(0)
Bearing Tolerance
(0)
Clearance&Viberation|Noise&Grease
(0)
Clearance&Tolerance Of Spherial Plain Bearing
(0)
Ball Bearing
(9)
Deep Groove Ball Bearing
(9)
Minature Ball Bearing
(2)
Angular Contact Ball Bearings
(2)
Thrust Ball Bearing
(4)
Insert Bearings
(9)
Pillow Block Bearings
(5)
Self Aligning Ball Bearing
(4)
Track Roller Bearings
(5)
Steel Ball
(12)
Roller Bearing
(6)
Tapered Roller Bearing
(11)
Spherical Roller Bearing
(9)
Thrust Spherical Roller Bearing
(4)
Needle Roller Bearing
(8)
Cylindrical Roller Bearings
(7)
Conveyor Roller Bearing
(5)
Automatic Transmission Bearings
(3)
Shperical Plain Bearing
(12)
Ball Joint Rod Ends Bearing
(5)
Linear Ball Bearing
(5)
Automotive Bearing
(6)
Hub Unit Bearing
(132)
Tensioner&Idler Bearing
(76)
Wheel Bearing
(76)
Clutch Release Bearing
(14)
U-joint Bearing
(182)
Water Pump Bearing
(7)
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31300 Series
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2D drawing
31300 Series
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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