Self Locking Worm Drive Gears, VE7 Slew Drive Gearbox For
Horizontal Single Axis Solar Trackers
Description
Hangtuo's worm gear slewing drive featured with good enveloping worm and gear meshing and multi tooth contact that makes the
slewing drive with high backholding torque to improve the solar tracking system's
safety. It is self-locking and can rotate max ±65 °. If more bigger
range needed, it can be customized.
Technical Data of VE Slewing Drive
| Model | Ratio | Rated Output Torque (N.m) | Tilting Torque (N.m) | Holding Torque (N.m) | Axial Load (kN) | Radial Load (kN) | Efficiency | Precision (°) | Self-locking | Weight (kg) |
| 3" | 31:1 | 600 | 1500 | 1800 | 22 | 15 | 40% | ≤0.1 | Yes | 12 |
| 5" | 37:1 | 800 | 5000 | 9200 | 16 | 27 | 40% | ≤0.1 | Yes | 18 |
| 7" | 57:1 | 1750 | 7000 | 13200 | 34 | 58 | 40% | ≤0.1 | Yes | 32 |
| 8" | 51:1 | 2250 | 11200 | 20400 | 50 | 80 | 40% | ≤0.1 | Yes | 28 |
| 9" | 61:1 | 2250 | 16000 | 30800 | 60 | 130 | 40% | ≤0.1 | Yes | 52 |
| 12" | 78:1 | 4300 | 25000 | 40560 | 77 | 190 | 40% | ≤0.1 | Yes | 65 |
| 14" | 85:1 | 5600 | 48000 | 44200 | 110 | 230 | 40% | ≤0.1 | Yes | 88 |
| 17" | 102:1 | 6750 | 67000 | 53040 | 142 | 390 | 40% | ≤0.1 | Yes | 135 |
| 21" | 125:1 | 16000 | 89000 | 65000 | 337 | 640 | 40% | ≤0.1 | Yes | 192 |
| 25" | 150:1 | 21450 | 112000 | 89000 | 476 | 950 | 40% | ≤0.1 | Yes | 251 |
Customized Services
1. Special design based on different applications and projects
2. Different types of motors could be matched, such as hydraulic
motors, stepper motors, electrical motors etc.
3. Different colors are available based on RAL code; our standard
color is RAL 9006.
Glossary of Key Paramaters
Tilting Moment Torque: This torque is the gravity load multiplied by distance between the
position of load and the center of slewing bearing. If the actual
torque is greater than the rated tilting moment torque, slewing
drive will be overturned.
Radial load: The load vertical to the axis of slewing bearing
Axial load: The load parallel to the axis of slewing bearing
Holding torque: It is the reverse torque.When the drive is rotating reversely, and
parts are not damaged,The maximum torque achieved is called holding
torque, it is also seen as broken torque.
Self-locking: Only when there is load, the slewing drive is not able to reverse
rotate and thus called self-locking.
