Four-point contact ball slewing bearing is composed of 2 seat-rings. It is compact in design and light in weight . The balls contact with the circular race at four points, which can support high dynamic loads , transmitting axial and radial forces simultaneously as well as the resulting tilting moments .
Four-point contact ball slewing bearing is composed of 2 seat-rings. It is compact in design and light in weight . The balls contact with the circular race at four points, which can support high dynamic loads , transmitting axial and radial forces simultaneously as well as the resulting tilting moments . It is mainly used for slewing conveyors , welding arm and positioner, medium duty cranes ,excavators and other engineering machines.
Designations | Boundary dimensions(mm) | Bolt hole diameter( mm) | Gear | Mass | |||||||||
non-gear type | external gear type | internal gear type | D | d | H | D1 | D2 | n | m | Da Z | kg | ||
010-30-500 | 011-30-500 | 013-30-500 | 602 | 398 | 80 | 566 | 434 | 20 | 18 | 5 | 630 | 123 | 75.8 |
012-30-500 | 014-30-500 | 602 | 398 | 80 | 566 | 434 | 20 | 18 | 6 | 630 | 102 | 75.8 | |
010-30-560 | 011-30-560 | 013-30-560 | 662 | 458 | 80 | 626 | 494 | 20 | 18 | 5 | 690 | 135 | 94 |
012 30 560 | 014-30-560 | 662 | 458 | 80 | 626 | 494 | 20 | 18 | 6 | 690 | 112 | 94 | |
010 30 630 | 011-30-630 | 013-30-630 | 732 | 528 | 80 | 696 | 564 | 24 | 18 | 6 | 774 | 126 | 110 |
012-30-630 | 014-30-630 | 732 | 528 | 80 | 696 | 564 | 24 | 18 | 8 | 776 | 94 | 110 | |
010-30-710 | 011-30-710 | 013-30-710 | 812 | 608 | 80 | 776 | 644 | 24 | 18 | 6 | 852 | 139 | 120 |
012-30-710 | 014-30-710 | 812 | 608 | 80 | 776 | 644 | 24 | 18 | 8 | 856 | 104 | 120 | |
010-40-800 | 011 40 800 | 013-40-800 | 922 | 678 | 100 | 878 | 722 | 30 | 22 | 8 | 968 | 118 | 256 |
012-40-800 | 014-40-800 | 922 | 678 | 100 | 878 | 722 | 30 | 22 | 10 | 970 | 94 | 256 | |
010-40-900 | 011-40-900 | 013-40-900 | 1022 | 778 | 100 | 978 | 822 | 30 | 22 | 8 | 1064 | 130 | 240 |
01240 900 | 014-40-900 | 1022 | 778 | 100 | 978 | 822 | 30 | 22 | 10 | 1070 | 104 | 240 | |
010-40-1000 | 011-40-1000 | 013-40-1000 | 1122 | 878 | 100 | 1078 | 922 | 36 | 22 | 10 | 1190 | 116 | 305 |
012-40-1000 | 014-40-1000 | 1122 | 878 | 100 | 1078 | 922 | 36 | 22 | 12 | 1188 | 96 | 305 | |
010-40-1120 | 011-40-1120 | 013-40-1120 | 1242 | 998 | 100 | 1198 | 1042 | 36 | 22 | 10 | 1300 | 127 |