Key Features
1. High load capacity: No pairing needed, one bearing handles radial + unidirectional axial loads
2. Compact design: Thinner than double row angular contact bearings, saves space in machinery and reduces installation complexity.
3. High resistance to tilting moment: Ideal for overhung loads, slewing rings, and spindle applications.
4. Low friction & vibration: Ensures smooth, quiet operation.
5. Excellent high-speed performance: Optimized raceways enable higher limiting speeds.
Dimensions
Inner diameter: 30mm～560mm
Outer diameter: 72mm～780mm
Width: 19mm～90mm
Application Scope
● Machine tool spindles, machining centers
● Crane slewing rings, excavator swing mechanisms
● High-precision reducers, servo motors
● Aerospace components, robot joints
● High-speed pumps, compressors, fans
Technical Parameters
Selected representative hot models from the QJ/QJF series, covering mainstream working conditions with small, medium and large bores.
|
Model number |
Basic dimensions (mm) d |
Basic dimensions (mm) D |
Basic dimensions (mm) B |
Rated load (kN) Cr |
Rated load (kN) Cor |
Limiting speed (r/min) Grease lubrication |
Limiting speed (r/min) oil lubrication |
Weight (kg) |
|
QJ306MA |
30 |
72 |
19 |
50.1 |
38 |
8000 |
11000 |
0.463 |
|
QJ307N2Q1 |
35 |
80 |
21 |
57.2 |
45 |
7100 |
9500 |
0.690 |
|
QJ208 |
40 |
80 |
18 |
56 |
46 |
6700 |
9000 |
0.445 |
|
QJ308 |
40 |
90 |
23 |
72 |
58 |
5300 |
8500 |
0.793 |
|
QJ309M |
45 |
100 |
25 |
88.9 |
72 |
5600 |
7500 |
1.080 |
|
QJ211 |
55 |
100 |
21 |
98 |
71 |
5300 |
7000 |
0.798 |
|
QJ212M |
60 |
110 |
22 |
92.3 |
87 |
4800 |
6300 |
0.928 |
|
QJ313M |
65 |
140 |
33 |
158 |
140 |
3800 |
5300 |
2.340 |
|
QJ214N2Q1 |
70 |
125 |
24 |
109 |
109 |
4000 |
5600 |
1.290 |
|
QJ314M |
70 |
150 |
35 |
185 |
166 |
3600 |
5000 |
3.280 |
|
QJ215M |
75 |
130 |
25 |
117 |
123 |
3800 |
5300 |
1.380 |
|
QJ315N2/C9 |
75 |
160 |
37 |
212 |
204 |
3400 |
4800 |
3.830 |
|
QJ216N2 |
80 |
125 |
22 |
80 |
91.5 |
3900 |
5200 |
1.070 |
|
QJ216 |
80 |
140 |
26 |
138 |
146 |
3600 |
5000 |
2.020 |
|
QJ317N2 |
85 |
180 |
41 |
248 |
255 |
3000 |
4000 |
5.450 |
|
QJ218N2 |
90 |
160 |
30 |
167 |
178 |
3200 |
4300 |
2.870 |
|
QJ318N2 |
90 |
190 |
43 |
254 |
274 |
2800 |
3800 |
6.190 |
|
QJ219N2 |
95 |
170 |
32 |
191 |
204 |
3000 |
4000 |
3.300 |
|
QJ319N2 |
95 |
200 |
45 |
285 |
310 |
2600 |
3600 |
7.520 |
|
QJF1020 |
100 |
150 |
24 |
103 |
128 |
3200 |
4300 |
1.630 |
|
QJ220 |
100 |
180 |
34 |
216 |
230 |
2800 |
3800 |
3.810 |
|
QJ322N2Q1 |
110 |
240 |
50 |
365 |
440 |
2200 |
3000 |
11.700 |
|
QJ324Q1 |
120 |
260 |
55 |
405 |
515 |
2000 |
2800 |
14.800 |
|
QJ1026M |
130 |
200 |
33 |
182 |
240 |
2200 |
3200 |
4.220 |
|
QJ326N2 |
130 |
280 |
58 |
425 |
560 |
1900 |
2600 |
20.100 |
|
QJF1028 |
140 |
210 |
33 |
268 |
273 |
2200 |
3000 |
3.350 |
|
QJ328N2Q1 |
140 |
300 |
62 |
470 |
645 |
1700 |
2400 |
23.300 |
|
QJF1030 |
150 |
225 |
35 |
220 |
298 |
2000 |
2800 |
5.290 |
|
QJ330M |
150 |
320 |
65 |
540 |
795 |
1600 |
2200 |
27.400 |
|
QJF1032 |
160 |
240 |
38 |
239 |
335 |
1900 |
2600 |
6.540 |
|
QJ332N2Q1 |
160 |
340 |
68 |
540 |
785 |
1500 |
2000 |
34.400 |
|
QJF1034 |
170 |
259.5 |
42 |
292 |
410 |
1800 |
2400 |
8.820 |
|
QJ334 |
170 |
360 |
72 |
600 |
970 |
1500 |
2200 |
40.700 |
|
QJF1036 |
180 |
259.5 |
52 |
248 |
370 |
1700 |
2300 |
10.900 |
|
QJ336N2Q1 |
180 |
380 |
75 |
690 |
1130 |
1500 |
2000 |
46.200 |
|
QJF1038X1 |
190 |
289.5 |
46 |
325 |
490 |
1600 |
2200 |
11.100 |
|
QJ338 |
190 |
340 |
55 |
500 |
800 |
1400 |
2000 |
50.000 |
|
QJF1040 |
200 |
300 |
58 |
325 |
505 |
1500 |
2000 |
14.700 |
|
QJ340N2 |
200 |
360 |
58 |
515 |
855 |
1300 |
1800 |
55.300 |
|
QJF3944 |
220 |
299.5 |
60 |
265 |
420 |
1200 |
1600 |
12.700 |
|
QJ344N2Q1 |
220 |
400 |
78 |
465 |
1050 |
1100 |
1500 |
79.200 |
|
QJF1048 |
240 |
339.5 |
60 |
370 |
640 |
1100 |
1500 |
16.100 |
|
QJ248 |
240 |
360 |
56 |
430 |
756 |
1000 |
1400 |
54.000 |
|
QJF1052 |
260 |
360 |
46 |
387 |
676 |
1000 |
1400 |
15.500 |
|
QJ252 |
260 |
480 |
80 |
670 |
1372 |
900 |
1300 |
72.800 |
|
QJF2956X3 |
280 |
389.5 |
65 |
430 |
800 |
960 |
1000 |
24.100 |
|
QJ1056M |
280 |
420 |
65 |
533 |
1010 |
960 |
1000 |
34.400 |
|
QJF1060 |
300 |
460 |
74 |
605 |
1224 |
900 |
1100 |
48.200 |
|
QJ1260 |
300 |
540 |
98 |
700 |
1480 |
800 |
1150 |
106.000 |
|
QJF1064X1 |
320 |
479.5 |
74 |
630 |
1330 |
850 |
1200 |
52.200 |
|
QJ1264 |
320 |
580 |
105 |
900 |
2000 |
850 |
1100 |
132.000 |
|
QJ1068 |
340 |
520 |
82 |
750 |
1635 |
700 |
950 |
68.400 |
|
QJ1072 |
360 |
540 |
82 |
775 |
1750 |
850 |
1000 |
71.500 |
|
QJ1272 |
360 |
650 |
122 |
1080 |
2500 |
750 |
1000 |
188.000 |
|
QJ1076 |
380 |
560 |
82 |
865 |
1900 |
700 |
950 |
74.000 |
|
QJ1276 |
380 |
680 |
132 |
1140 |
2900 |
650 |
950 |
225.000 |
|
QJ1080 |
400 |
600 |
90 |
880 |
5150 |
750 |
950 |
95.000 |
|
QJ1280 |
400 |
720 |
140 |
1245 |
3125 |
650 |
850 |
259.000 |
|
QJF1084 |
420 |
620 |
90 |
920 |
2250 |
630 |
900 |
101.000 |
|
QJ1284 |
420 |
760 |
150 |
1360 |
3700 |
550 |
750 |
320.000 |
|
QJ1088 |
440 |
650 |
94 |
975 |
2550 |
600 |
800 |
110.000 |
|
QJ1288 |
440 |
790 |
155 |
1360 |
3700 |
600 |
700 |
352.000 |
|
QJ1092 |
460 |
680 |
100 |
1010 |
2550 |
650 |
850 |
130.000 |
|
QJ1292 |
460 |
830 |
165 |
1490 |
4200 |
500 |
700 |
420.000 |
|
QJF9/560X1 |
560 |
780 |
60 |
689 |
1840 |
600 |
800 |
100.000 |