Double volley ball slewing bearing
The double row ball slewing bearing has three seat rings. The steel balls and isolation blocks can be directly discharged into the upper and lower raceways. According to the stress conditions, the upper and lower rows of steel balls with different diameters are arranged. This kind of open assembly is very convenient. The load-bearing angle of the upper and lower arc raceways is 90°, which can withstand large axial force and tipping moment. When the radial force is greater than 0.1 times the axial force, the raceway must be specially designed. The double row ball slewing bearing has relatively large axial and radial dimensions and a solid structure. It is especially suitable for loading and unloading machinery such as tower cranes and truck cranes that require medium or larger diameters.
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Product Description

             

Note
1,n1is the number of lubricating oil holes. oil cupM10x1JB/T7940.1~JB/T7940.
2The user can specify the position of the oil hole according to the application conditions.n-φ can be changed to threaded hole, thread diameterM, thread depth 2M
3, The gear circumferential force in the table is the maximum circumferential force, and the rated circumferential force is taken as1/2.
4,"k” is the topping coefficient.
5, The specifications in this sample are standard products,Both inner and outer diameters are free tolerances. If there are cooperation requirements between the host machine and the slewing bearing, please specify them in the contract or contract attachments.(Such as technical agreement)Indicate the fit size and accuracy.
6. The products listed in the table are our company’s regular products. If you have other special requirements, please contact our company.
No.  Model Overall dimensions Installation Dimensions Structure Size Gear Parameters Peripheral force of gear Reference weight
De D d H D1 D2 n Φ M n1 D3 d1 H₁ h b m z x k Normalizing Tempering Kg
mm mm mm mm mm mm mm mm mm mm mm mm mm mm KN  KN 
1 023.25.500.002 357 616 384 106 580 420 20 18 16 4 477 482 96 26 60 5 72 0.5 0.2 37 52 126
024.25.500.002 350.4 6 59 45 62 128
2 023.25.560.002 417 676 444 106 640 480 20 18 16 4 537 542 96 26 60 5 84 0.5 0.2 37 52 143
024.25.560.002 410.4 6 69 45 62 144
3 023.25.630.002 482.4 746 514 106 710 550 24 18 16 4 607 612 96 26 60 6 81 0.5 0.2 45 62 160
024.25.630.002 475.2 8 60 60 83 162
4 023.25.710.002 560.4 826 594 106 790 630 24 18 16 4 687 692 96 26 60 6 94 0.5 0.2 45 62 183
024.25.710.002 555.2 8 70 60 83 184
5 023.30.800.002 619.2 942 658 124 898 702 30 22 20 6 771 777 114 29 80 8 78 0.5 0.2 80 111 300
024.30.800.002 614 10 62 100 140 301
6 023.30.900.002 715.2 1042 758 124 998 802 30 22 20 6 871 877 114 29 80 8 90 0.5 0.2 80 111 337
024.30.900.002 714 10 72 100 140 335
7 023.30.1000.002 814 1142 858 124 1098 902 36 22 20 6 971 977 114 29 80 10 82 0.5 0.2 100 140 371
024.30.1000.002 796.8 12 67 120 167 383
8 023.30.1120.002 924 1262 978 124 1218 1022 36 22 20 6 1091 1097 114 29 80 10 93 0.5 0.2 100 140 429
024.30.1120.002 916.8 12 77 120 167 432
9 023.40.1250.002 1012.8 1426 1074 160 1374 1126 40 26 24 5 1214 1215 150 39 90 12 85 0.5 0.2 135 188 746
024.40.1250.002 1013.6 14 73 158 219 741
10 023.40.1400.002 1156.8 1576 1224 160 1524 1272 40 26 24 5 1364 1365 150 39 90 12 97 0.5 0.2 135 188 850
024.40.1400.002 1153.6 14 83 158 219 850
11 023.40.1600.002 1349.6 1776 1424 160 1724 1476 45 26 24 5 1564 1565 150 39 90 14 97 0.5 0.2 158 219 979
024.40.1600.002 1350.4 16 85 181 250 972
12 023.40.1800.002 1545.6 1976 1624 160 1924 1676 45 26 24 5 1764 1765 150 39 90 14 111 0.5 0.2 158 219 1117
024.40.1800.002 1542.4 16 97 181 250 1116
13 023.50.2000.002 1702.4 2215 1785 190 2149 1851 48 33 30 8 1962 1965 178 47 120 16 107 0.5 0.2 241 333 1733
024.50.2000.002 1699.2 18 95 271 375 1732
14 023.50.2240.002 1942.4 2455 2025 190 2389 2091 48 33 30 8 2202 2206 178 47 120 16 122 0.5 0.2 241 333 1956
024.50.2240.002 1933.2 18 108 271 375 1973
15 023.50.2500.002 2203.2 2715 2285 190 2649 2351 56 33 30 8 2462 2465 178 47 120 18 123 0.5 0.2 271 375 2164
024.50.2500.002 2188 20 110 301 418 2204
16 023.50.2800.002 2491.2 3015 2585 190 2949 2651 56 33 30 8 2762 2765 178 47 120 18 139 0.5 0.2 271 375 2486
024.50.2800.002 2488 20 125 301 418 2485
17 023.60.3150.002 2768 3428 2872 226 3338 2962 56 45 42 8 3102 3104 214 56 150 20 139 0.5 0.2 377 522 4137
024.60.3150.002 2758.8 22 126 415 574 4167
18 023.60.3550.002 3168 3828 3272 226 3738 3362 56 45 42 8 3502 3504 214 56 150 20 159 0.5 0.2 377 522 4700
024.60.3550.002 3176.8 22 145 415 574 4627
19 023.60.4000.002 3616.8 4278 3722 226 4188 3812 60 45 42 10 3952 3954 214 56 150 22 165 0.5 0.2 415 574 5298
024.60.4000.002 3610 25 145 471 652 5309
20 023.60.4500.002 4122.8 4778 4222 226 4688 4312 60 45 42 10 4452 4454 214 56 150 22 188 0.5 0.2 415 574 5952
024.60.4500.002 4110 25 165 471 652 6011