IP66 Enveloping Worm Gear Transmission, C5 Corrosion Class For
Solar Tracking Systems
Enveloping Worm Gear Slew Drive Description
A slewing bearing or slew ring drive is a rotational
rolling-element bearing that can typically supports a heavy load
but slow-turning.
The slewing drive's application is extensive and has increased
significantly. Once primarily utilized for mining and heavy
construction, now slewing drive applications include solar energy,
wind turbines and even amusement rides. Industries turn to slew
drives that require tremendous strength, accuracy, safety, and
efficiency.
SE Model Performance Parameters
| SE Model Performance Parameters |
| Model | Rated Output Torque (N.m) | Tilting
Torque
(kN.m) | Holding
Torque
(kN.m) | Axial
Load
(kN) | Radial
Load
(kN) | Ratio | Efficiency | Precision
(degree) | IP | Working Tep
(℃) | Self-locking | Weight
(kg) |
| 1" | 400 | 1 | 2 | 22 | 12 | 32:1 | 40% | ≤0.15 | 66 | -40～+80 | Yes | 6 |
| 3" | 806 | 1.5 | 3 | 30 | 16 | 31:1 | 40% | ≤0.15 | 66 | -40～+80 | Yes | 8 |
| 5" | 962 | 6 | 9 | 68 | 27 | 37:1 | 40% | ≤0.15 | 66 | -40～+80 | Yes | 12 |
| 7" | 7344 | 13.5 | 12 | 132 | 58 | 57:1 | 40% | ≤0.15 | 66 | -40～+80 | Yes | 21 |
| 9" | 8784 | 45 | 30.8 | 340 | 130 | 61:1 | 40% | ≤0.15 | 66 | -40～+80 | Yes | 49 |
| 12" | 11232 | 54 | 45 | 480 | 190 | 78:1 | 40% | ≤0.15 | 66 | -40～+80 | Yes | 61 |
| 14" | 11232 | 68 | 54 | 680 | 230 | 85:1 | 40% | ≤0.15 | 66 | -40～+80 | Yes | 63 |
| 17" | 11232 | 135 | 65 | 980 | 390 | 102:1 | 40% | ≤0.15 | 66 | -40～+80 | Yes | 105 |
| 21" | 18000 | 203 | 81 | 1600 | 640 | 125:1 | 40% | ≤0.15 | 66 | -40～+80 | Yes | 149 |
| 25" | 18000 | 271 | 89 | 2400 | 950 | 150:1 | 40% | ≤0.15 | 66 | -40～+80 | Yes | 204 |
Features
1. Can get a large transmission ratio
2. More compact design
3. More tooth contact by using envelop worm, the multi-tooth
meshing transmission make it running smoothly with low noise.
4. Self-locking, it can realize the reverse self-locking, that is
to say, only the worm to drive the worm wheel. With this feature,
the worm mechanism used in heavy machinery can play a safety
protection role.
5. High transmission efficiency, less wear.
Applications
Engineering machinery is the most widely used place for slewing
bearings, such as Earth moving machinery, excavators,
disintegration machines, stacker reclaimers, graders, road rollers,
powerful boring machines, rock drilling machines, etc.
