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 
1 020.25.500.002   616 384 106 580 420 20 18 16 4 477 482 96 26               121
2 020.25.560.002   676 444 106 640 480 20 18 16 4 537 543 96 26               136
3 020.25.630.002   746 514 106 710 550 24 18 16 4 607 613 96 26               152
4 020.25.710.002   826 594 106 790 630 24 18 16 4 687 692 96 26               172
5 020.30.800.002   942 658 124 898 702 30 22 20 6 771 777 114 29               284
6 020.30.900.002   1042 758 124 998 802 30 22 20 6 871 877 114 29               316
7 020.30.1000.002   1142 858 124 1098 902 36 22 20 6 971 977 114 29               349
8 020.30.1120.002   1262 978 124 1218 1022 36 22 20 6 1091 1097 114 29               394
9 020.40.1250.002   1426 1074 160 1374 1126 40 26 24 5 1214 1215 150 39               709
10 020.40.1400.002   1576 1224 160 1524 1272 40 26 24 5 1364 1365 150 39               787
11 020.40.1600.002   1776 1424 160 1724 1476 45 26 24 5 1564 1565 150 39               899
12 020.40.1800.002   1976 1624 160 1924 1676 45 26 24 5 1764 1765 150 39               1018
13 020.50.2000.002   2215 1785 190 2149 1851 48 33 30 8 1962 1965 178 47               1586
14 020.50.2240.002   2455 2025 190 2389 2091 48 33 30 8 2202 2206 178 47               1789
15 020.50.2500.002   2715 2285 190 2649 2351 56 33 30 8 2462 2465 178 47               1990
16 020.50.2800.002   3015 2585 190 2949 2651 56 33 30 8 2762 2765 178 47               2243
17 020.60.3150.002   3428 2872 226 3338 2962 56 45 42 8 3102 3104 214 56               3762
18 020.60.3550.002   3828 3272 226 3738 3362 56 45 42 8 3502 3504 214 56               4272
19 020.60.4000.002   4278 3722 226 4188 3812 60 45 42 10 3952 3954 214 56               4828
20 020.60.4500.002   4778 4222 226 4688 4312 60 45 42 10 4452 4454 214 56               5465