Small Size Heavy Duty Slew Drive For Horizontal Single Axis Solar
Tracking System
Heavy Duty Slew Drive Description
The HT Slewing Drive is a gearbox designed to handle radial or
axial loads with high rotational torque. In addition, the slewing
ring bearing at the heart of the drive enables it to withstand high
cantilever or moment loads. A descendant of the "worm" lead screw,
rotary drives are found in construction machinery, manufacturing,
military equipment, and many other applications where strength and
precision are required.
Performace of VE Series Slewing Drives
| 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 |
Features
From material to finished product, our worm drives are designed,
tested and guaranteed for tracking accuracy of efficiency according
to customers’special requirements.
Slewing drive can realize unlimited circumferential rotation and
speed reduction, and can withstand larger axial force, radial force
and overturning force. It enjoys advantages of high accuracy,
compact structure and large carrying capacity.
Applications
The physics of slewing drives make them a versatile solution for
many applications. In operation, the axial motion of the slewing
drive, or motion about its axis, interacts to generate radial
torque. This action occurs by meshing the grooves of the horizontal
worm with the teeth of the vertical gear. When turning, the axial
movement of the worm gear transfers the amplified torque force to
the radial gears. The number of threads on the worm and the number
of gears interacting will determine the speed ratio of the unit.
Slewing drives are best suited for applications where high torque
can produce precise positioning and rotational accuracy. This
design keeps the unit running smoothly and powerfully with minimal
clearance.
