Basic size /mm
|
Basic load rating /kN
|
Limit speed /r·min
|
Mass /kg
|
Bearing code
|
Other sizes /mm
|
Installation size /mm
|
d
|
D
|
B
|
Cr
|
C0r
|
fat |
oil |
W≈
|
QJ 000 QJF 0000
|
d2 ≈
|
D2 ≈
|
a min
|
r min
|
da min
|
Da max
|
ra max
|
30
|
72
|
19
|
44.5
|
31.2
|
6700
|
9000
|
0.42
|
QJ306
|
45.8
|
58.2
|
36
|
1.1
|
37
|
65
|
1
|
35
|
72
|
17
|
28.0
|
25.8
|
6300
|
8500
|
0.356
|
QJF 207
|
—
|
—
|
—
|
1.1
|
42
|
65
|
1
|
80
|
21
|
53.2
|
37.2
|
6000
|
8000
|
0. 57
|
QJ307
|
50.7
|
64.3
|
40
|
1.5
|
44
|
71
|
1.5
|
40
|
80
|
18
|
36.0
|
32.0
|
6000
|
8000
|
0.394
|
QJF 208
|
—
|
—
|
—
|
1.1
|
47
|
73
|
1
|
80
|
18
|
40.5
|
37.0
|
6700
|
9000
|
0.391
|
QJ 208
|
54
|
66
|
42
|
1.1
|
47
|
73
|
1
|
45
|
85
|
19
|
40.0
|
37.8
|
5300
|
7000
|
0.43
|
QJF 209
|
—
|
—
|
—
|
1.1
|
52
|
78
|
1
|
100
|
25
|
55.5
|
50.2
|
4800
|
6300
|
0.923
|
QJF 309
|
—
|
—
|
—
|
1.5
|
54
|
91
|
1.5
|
50
|
90
|
20
|
41.8
|
40.2
|
5000
|
6700
|
0.514
|
QJF 210
|
—
|
—
|
—
|
1.1
|
57
|
83
|
1
|
90
|
20
|
55.5
|
44.8
|
5000
|
6700
|
0. 52
|
QJ210
|
63.5
|
76.5
|
49
|
1.1
|
57
|
83
|
1
|
110
|
27
|
73.5
|
72.2
|
4500
|
6000
|
1.2
|
QJF 310
|
—
|
—
|
—
|
2
|
60
|
100
|
2
|
55
|
110
|
27
|
85.0
|
80.0
|
5000
|
6700
|
1.33
|
QJ310
|
70
|
90
|
56
|
2
|
60
|
100
|
2
|
100
|
21
|
50.2
|
50.2
|
4500
|
6000
|
0. 76
|
QJF 211
|
—
|
—
|
—
|
1.5
|
64
|
91
|
1.5
|
100
|
21
|
71.0
|
62.0
|
5300
|
7000
|
0. 769
|
QJ211
|
70.3
|
84.7
|
54
|
1.5
|
64
|
91
|
1.5
|
120
|
29
|
86.5
|
85.0
|
4000
|
5300
|
1.48
|
QJF 311
|
—
|
—
|
—
|
2
|
65
|
110
|
2
|
|
120
|
29
|
115
|
86.5
|
4000
|
5300
|
1.48
|
QJ311
|
77.2
|
97.8
|
61
|
2
|
65
|
110
|
2
|
60
|
110
|
22
|
62.8
|
63.8
|
4300
|
5600
|
1.0
|
QJF 212
|
—
|
—
|
—
|
1.5
|
69
|
101
|
1.5
|
110
|
22
|
81.0
|
71.0
|
4800
|
6300
|
0.99
|
QJ212
|
77
|
93
|
60
|
1.5
|
69
|
101
|
1.5
|
130
|
31
|
93.5
|
93.2
|
3800
|
5000
|
2.2
|
QJF 312
|
—
|
—
|
—
|
2.1
|
72
|
118
|
2.1
|
65
|
120
|
23
|
65.2
|
67.8
|
3800
|
5000
|
1.12
|
QJF 213
|
—
|
—
|
—
|
1.5
|
74
|
111
|
1.5
|
120
|
23
|
90.0
|
83.0
|
4300
|
5600
|
1.2
|
QJ213
|
84.5
|
101
|
65
|
1.5
|
74
|
111
|
1.5
|
140
|
33
|
105
|
102
|
3400
|
4500
|
2.32
|
QJF 313
|
—
|
—
|
—
|
2.1
|
77
|
128
|
2.1
|
70
|
125
|
24
|
98.0
|
91.5
|
4300
|
5600
|
2.32
|
QJ214
|
89
|
106
|
68
|
1.5
|
79
|
116
|
1.5
|
150
|
35
|
168
|
132
|
3200
|
4300
|
3.15
|
QJ314
|
97.3
|
123
|
77
|
2.1
|
82
|
138
|
2.1
|
75
|
130
|
25
|
108
|
98.0
|
4000
|
5300
|
1.45
|
QJ215
|
93.8
|
112
|
72
|
1.5
|
84
|
121
|
1.5
|
85
|
180
|
41
|
210
|
188
|
2600
|
3600
|
5.5
|
QJ317
|
117
|
148
|
93
|
3
|
99
|
166
|
2.5
|
90
|
140
|
24
|
102
|
130
|
3200
|
4300
|
—
|
QJ 1018
|
—
|
—
|
—
|
1.5
|
99
|
131
|
1.5
|
160
|
30
|
165
|
150
|
3200
|
4300
|
2.91
|
QJ218
|
114
|
136
|
88
|
2
|
100
|
150
|
2.0
|
190
|
43
|
238
|
228
|
2400
|
3400
|
6.41
|
QJ318
|
124
|
156
|
98
|
3
|
104
|
176
|
2.5
|
100
|
180
|
34
|
212
|
192
|
2800
|
3800
|
4.05
|
QJ220
|
127
|
153
|
98
|
2.1
|
112
|
168
|
2.1
|
110
|
170
|
28
|
150
|
195
|
3000
|
4000
|
—
|
QJ 1022
|
—
|
—
|
—
|
2
|
120
|
160
|
2
|
200
|
38
|
255
|
245
|
2400
|
3400
|
5.76
|
QJ222
|
141
|
169
|
109
|
2.1
|
122
|
188
|
2.1
|
240
|
50
|
328
|
345
|
2000
|
3000
|
12.4
|
QJ322
|
154
|
196
|
23
|
2.1
|
122
|
188
|
2.1
|
120
|
180
|
28
|
152
|
208
|
2200
|
3200
|
—
|
QJ 1024
|
—
|
—
|
—
|
2
|
130
|
170
|
2
|
215
|
40
|
280
|
275
|
2200
|
3200
|
6.49
|
QJ224
|
152
|
183
|
117
|
2
|
132
|
203
|
2.1
|
260
|
55
|
352
|
392
|
1600
|
2200
|
15.3
|
QJ324
|
169
|
211
|
133
|
3
|
134
|
246
|
2.5
|
130
|
200
|
33
|
202
|
230
|
2000
|
2700
|
—
|
QJ 1026
|
—
|
—
|
—
|
2
|
140
|
190
|
2
|
230
|
40
|
288
|
290
|
1900
|
2800
|
7.28
|
QJ226
|
165
|
195
|
126
|
3
|
144
|
216
|
2.5
|
140
|
210
|
33
|
205
|
242
|
1900
|
2600
|
—
|
QJ 1028
|
—
|
—
|
—
|
2
|
150
|
200
|
2
|
250
|
42
|
292
|
352
|
1500
|
2000
|
10.5
|
QJ228
|
179
|
211
|
137
|
3
|
154
|
236
|
2.5
|
300
|
62
|
422
|
512
|
1300
|
1800
|
22.4
|
QJ328
|
196
|
244
|
154
|
4
|
158
|
282
|
3
|
150
|
225
|
35
|
225
|
275
|
1800
|
2400
|
4. 59
|
QJ 1030
|
174
|
201
|
131
|
2.1
|
162
|
213
|
2.1
|
270
|
45
|
302
|
372
|
1400
|
1900
|
12.4
|
QJ230
|
194
|
226
|
147
|
3
|
164
|
256
|
2.5
|
160
|
240
|
38
|
260
|
318
|
1600
|
2200
|
—
|
QJ 1032
|
—
|
—
|
140
|
2.1
|
172
|
228
|
2.1
|
290
|
48
|
352
|
455
|
1300
|
1800
|
14.7
|
QJ232
|
207
|
243
|
158
|
3
|
174
|
276
|
2.5
|
170
|
260
|
42
|
200
|
350
|
1500
|
2000
|
7.45
|
QJ 1034
|
198.8
|
231.2
|
151
|
2.1
|
182
|
248
|
2.1
|
310
|
52
|
358
|
480
|
1200
|
1700
|
18.1
|
QJ234
|
222
|
258
|
168
|
4
|
188
|
292
|
3
|
180
|
280
|
46
|
335
|
408
|
1400
|
1800
|
10.7
|
QJ 1036
|
212.7
|
247.8
|
161
|
2.1
|
192
|
268
|
2.1
|
320
|
52
|
392
|
545
|
1100
|
1600
|
—
|
QJ236
|
231
|
269
|
175
|
4
|
198
|
302
|
3
|
190
|
290
|
46
|
348
|
430
|
1300
|
1700
|
—
|
QJ 1038
|
—
|
—
|
168
|
2.1
|
202
|
278
|
2.1
|
200
|
310
|
51
|
382
|
498
|
1200
|
1600
|
—
|
QJ1040
|
—
|
—
|
179
|
2.1
|
212
|
298
|
2.1
|
220
|
340
|
56
|
448
|
622
|
1000
|
1400
|
18
|
QJ1044
|
259
|
301
|
196
|
3
|
234
|
326
|
2.5
|
240
|
360
|
56
|
458
|
655
|
950
|
1300
|
21
|
QJ1048
|
282.2
|
318
|
210
|
3
|
254
|
346
|
2.5
|
260
|
400
|
65
|
510
|
765
|
850
|
1200
|
—
|
QJ 1052
|
—
|
—
|
—
|
4
|
278
|
382
|
3
|
280
|
420
|
65
|
540
|
835
|
800
|
1000
|
—
|
QJ 1056
|
—
|
—
|
245
|
4
|
298
|
402
|
3
|
300
|
460
|
74
|
630
|
1040
|
700
|
950
|
—
|
QJ 1060
|
—
|
—
|
—
|
4
|
318
|
442
|
3
|
320
|
480
|
74
|
650
|
1090
|
650
|
850
|
—
|
QJ1064
|
—
|
—
|
280
|
4
|
338
|
462
|
3
|
340
|
520
|
82
|
725
|
1270
|
600
|
800
|
—
|
QJ 1068
|
—
|
—
|
301
|
5
|
362
|
498
|
4
|
360
|
540
|
82
|
768
|
1380
|
530
|
700
|
—
|
QJ 1072
|
—
|
—
|
—
|
5
|
382
|
518
|
4
|
380
|
560
|
82
|
805
|
1430
|
500
|
670
|
—
|
QJ 1076
|
—
|
—
|
—
|
5
|
402
|
538
|
4
|
FTM custom four point contact ball bearing performance and advantages:
1. Two-way axial force bearing capacity
It can withstand the axial load from both directions at the same time, and the bearing capacity is strong.
2. High rigidity and overturning moment carrying capacity
It is especially suitable for application scenarios that bear off-load or overturning moment.
3. Save space
Single-row design can replace double-row angular contact ball bearings in a compact space.
4. Good running accuracy
Suitable for high precision equipment, excellent speed and stability performance.
5. Low friction torque
Low friction between the inner and outer rings and high energy efficiency make it suitable for applications requiring low power consumption and high efficiency.
FTM four-point contact ball bearings will be produced with high quality materials and high precision, here are some options for customization:
1. Accuracy level: P2,P4
2. Material selection: bearing steel, Gcr15, 45 steel, stainless steel, etc
3. Size: diameter 10mm-25mm
4. Processing technology: chamfer, drilling, thread, groove, arc, heat treatment, electroplating, blackening, etc
5. Shape: Customize various shapes, according to the drawing samples
Custom four-point contact ball bearings from FTM provide a powerful solution for applications requiring high load capacity, precision and compact design. By offering a wide range of customization options, FTM can meet the specific needs of different industries. If you have special requirements or designs, please contact us for further assistance.