swing bearing excavator Slewing Bearing With Internal Gear
May 25, 2022
Double worm slewing drive
July 23, 2022
Opened Housing Slewing Drive
Rotary drive can be divided into gear drive and worm gear drive according to different transmission forms.
It can be divided into two types: open type and closed type. The simplest form of rotary drive is the drive turntable applied to construction machinery products such as excavators and tower cranes. As the last link of the deceleration transmission chain, this rotary drive is open. The front end needs to be equipped with a planetary reducer with a large reduction ratio as its power input, so it can only be called the prototype of the rotary drive. In order to expand the application range of such products and further improve the convenience of product use and maintenance In order to further improve the driving ability of the product, the enveloping worm drive has also been applied to such products. The slewing drive equipped with the enveloping worm not only increases the driving torque, but also The drive accuracy has also been further improved, and digital control is possible, so it is widely used in tracking and fine-tuning devices on solar and wind power generation equipment, in addition to robots, radar, low-speed heavy-duty lifting, lifting equipment, precision CNC turntables and other product fields All have good application effects.
Worm Rotary Drive
- Curved gear teeth, more contact and higher torque
- Special processed gear prevents gear weary and adhesion
- Fit for heavy duty and medium speed application
| Output Torque |
Tilting Moment Torque |
Holding Torque |
Static Axial Rating |
Static Radial Rating |
Dynamic Axial Rating |
Dynamic Radial Rating |
Gear Ratio |
Tracking Precision |
Weight | |
| W7 | 3.5 kN.m | 14.2 kN.m | 20 kN.m | 220 kN | 90 kN | 63 kN | 48 kN | 47:1 | ≤ 0.15° | 29kg |
| 2583 lbf.ft | 10.5×10³lbf.ft | 14.8×10³lbf.ft | 49.5×10³lbf | 20.2×10³lbf | 14.2×10³lbf | 10.8×10³lbf | ||||
| W9 | 8 kN.m | 35.6 kN.m | 38.7 kN.m | 578 kN | 215 kN | 136 kN | 115 kN | 62:1 | ≤ 0.15° | 40kg |
| 5904 lbf.ft | 26.3×10³lbf.ft | 29×10³lbf.ft | 129.9×10³lbf | 48.3×10³lbf | 30.6×10³lbf | 25.9×10³lbf | ||||
| W12 | 9.5 kN.m | 57 kN.m | 43 kN.m | 760 kN | 280 kN | 190 kN | 148 kN | 79:1 | ≤ 0.15° | 52kg |
| 7011 lbf.ft | 42.1×10³lbf.ft | 32×10³lbf.ft | 171.1×10³lbf | 62.9×10³lbf | 42.7×10³lbf | 33.3×10³lbf | ||||
| W14 | 10.8 kN.m | 71.2 kN.m | 48 kN.m | 960 kN | 360 kN | 230 kN | 200 kN | 86:1 | ≤ 0.13° | 62kg |
| 7970 lbf.ft | 52.6×10³lbf.ft | 35×10³lbf.ft | 215.8×10³lbf | 80.9×10³lbf | 51.7×10³lbf | 44.9×10³lbf | ||||
| W17 | 12.96 kN.m | 142.4 kN.m | 72.3 kN.m | 1166 kN | 435 kN | 280 kN | 231 kN | 104:1 | ≤ 0.1° | 82kg |
| 9564 lbf.ft | 105×10³lbf.ft | 53.4×10³lbf.ft | 262×10³lbf | 97.8×10³lbf | 62.9×10³lbf | 51.9×10³lbf | ||||
| W21 | 28.7 kN.m | 203 kN.m | 105.8 kN.m | 1598 kN | 640 kN | 385 kN | 335 kN | 90:1 | ≤ 0.1° | 139kg |
| 21180 lbf.ft | 150×10³lbf.ft | 78×10³lbf.ft | 359×10³lbf | 144×10³lbf | 87×10³lbf | 75×10³lbf | ||||
| W25 | 34.2 kN.m | 310 kN.m | 158.3 kN.m | 2360 kN | 945 kN | 590 kN | 470 kN | 104:1 | ≤ 0.1° | 176kg |
| 25240 lbf.ft | 229×10³lbf.ft | 117×10³lbf.ft | 531×10³lbf | 212×10³lbf | 133×10³lbf | 106×10³lbf |
