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Single Row Four Point Contact Ball Slewing Bearing（Q Series）–Internal Gear
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Slewing Bearing

Single Row Four Point Contact Ball Slewing Bearing（Q Series）–Internal Gear

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Characteristic of structure, performance and application

The single row four point contact ball slewing bearing is composed of two seat rings, which design in compact structure and light weight, steel ball contact with the circular raceway at four point, it can bear the axial force, radial force and the tilting moment at the same time.

It can be used for slewing conveyer, welding manipulator, light & medium duty crane, excavator, and other construction machinery.

Note:

1. n1 is the nos of lubricating holes.Oil cup M10×1JB/T7940.1~JB/T7940.2.The Oil nipple’s    location can be change according to the user’s application.
2. n-φcan change to tapped hole,the diameter of tapped hole is M,depth is 2M.
3. The tangential tooth force in the form is the max tooth force,the nominal tangential tooth force is 1/2 of the max one.
4. “K” is addendum reduction coefficient.

Specifications

No. Model 　Dimensions Mounting Dimensions Structural Dimension Gear data
Internal gear H Du Dn n Through Hole A Screw hole
  B/C/D		 n1 h B m Internal gear x=+0.5
de z Weight
D d φ d1 T
　 mm 　 mm 　 mm mm mm 　 kg
1 QN.315.20 408 224 60 370 260 10 17 M16 24 2 10 40 3 207 70 34
QN.315.20A 4 200 51 35
2 QN.355.20 448 264 60 410 300 10 17 M16 24 2 10 40 3 246 84 39
QN.355.20A 4 240 61 40
3 QN.400.20 493 310 60 455 345 12 17 M16 24 2 10 40 4 288 73 44
QN.400.20A 5 280 57 46
4 QN.450.20 543 360 60 505 395 12 17 M16 24 2 10 40 4 336 85 50
QN.450.20A 5 330 67 52
5 QN.500.20 593 410 60 555 445 14 17 M16 24 2 10 40 5 385 78 55
QN.500.20A 6 378 64 57
6 QN.560.20 656 468 70 618 502 14 17 M16 30 2 10 50 4 440 111 76
QN.560.20A 5 435 88 77
7 QN.630.20 726 538 70 688 572 16 17 M16 30 2 10 50 4 512 129 84
QN.630.20A 5 505 102 86
8 QN.710.20 806 618 70 768 652 18 17 M16 30 2 10 50 5 585 118 97
QN.710.20A 6 582 98 97
9 QN.800.20 896 708 70 858 742 20 17 M16 30 2 10 50 6 672 113 110
QN.800.20A 8 664 84 111
10 QN.800.25 908 694 78 864 736 18 22 M20 36 2 10 58 6 654 110 142
QN.800.25A 8 648 82 142
11 QN.900.25 1008 794 78 964 836 20 22 M20 36 2 10 58 8 744 94 163
QN.900.25A 10 740 75 162
12 QN.1000.25 1108 894 78 1064 936 24 22 M20 36 2 10 58 8 848 107 178
QN.1000.25A 10 840 85 179
13 QN.1000.32 1124 880 90 1074 926 24 24 M22 40 2 10 70 8 832 105 230
QN.1000.32A 10 830 84 227
14 QN.1120.32 1244 1000 90 1194 1046 28 24 M22 40 4 10 70 10 940 95 263
QN.1120.32A 12 936 79 262
15 QN.1250.32 1374 1130 90 1324 1176 32 24 M22 40 4 10 70 10 1070 108 294
QN.1250.32A 12 1068 90 290
16 QN.1400.32 1524 1280 90 1474 1326 36 24 M22 40 4 10 70 12 1212 102 333
QN.1400.32A 14 1204 87 336
17 QN.1250.40 1394 1110 102 1336 1164 32 26 M24 45 4 12 80 10 1050 106 388
QN.1250.40A 12 1044 88 388
18 QN.1400.40 1544 1260 102 1486 1314 36 26 M24 45 4 12 80 12 1188 100 444
QN.1400.40A 14 1190 86 434
19 QN.1600.40 1744 1460 102 1686 1514 40 26 M24 45 4 12 80 12 1392 117 509
QN.1600.40A 14 1386 100 511
20 QN.1800.40 1944 1660 102 1886 1714 44 26 M24 45 4 12 80 14 1582 114 576
QN.1800.40A 16 1568 99 591
21 QN.1600.50 1766 1438 124 1704 1496 40 30 M27 50 4 12 100 12 1368 115 714
QN.1600.50A 14 1358 98 723
22 QN.1800.50 1966 1638 124 1904 1696 44 30 M27 50 4 12 100 14 1568 113 794
QN.1800.50A 16 1552 98 818
23 QN.2000.50 2166 1842 124 2104 1896 48 30 M27 50 6 12 100 16 1760 111 891
QN.2000.50A 18 1746 98 913
24 QN.2240.50 2406 2078 124 2344 2136 54 30 M27 50 6 12 100 16 1984 125 1044
QN.2240.50A 18 1980 111 1041
25 QN.2500.50 2666 2342 124 2604 2396 60 30 M27 50 6 12 100 18 2250 126 1132
QN.2500.50A 20 2240 113 1148
26 QN.2500.60 2696 2308 150 2626 2374 60 33 M30 56 6 14 122 18 2214 124 1621
QN.2500.60A 20 2200 111 1654

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