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| Brand Name: | HT |
| Model Number: | VE |
| MOQ: | 1 |
| Delivery Time: | 7~45 days |
| Payment Terms: | T/T |
Worm Gear Slew Drive for Solar Tracking Systems
Description
The HT VE Worm Gear Slew Drive is a compact and durable vertical single-axis slew drive designed for solar tracking systems and other applications requiring controlled rotary motion. With an enclosed hourglass worm gear mechanism, the drive provides smooth rotation, high load capacity, reliable self-locking performance, and precise positioning.
Designed for demanding outdoor environments, the VE series features an IP66 enclosed housing and C4 anti-corrosion surface protection-C5 is also optional, making it suitable for long-term operation in solar farms and other outdoor equipment.
Key Features
Technical Parameters
| Parameter | Specification |
| Product Name | Single Axis Worm Gear Slew Drive |
| Model | HT VE Series |
| Product Type | Vertical Single Slew Drive |
| Worm Type | Hourglass Worm Gear |
| Application | Solar Tracking System |
| Self locking | Yes |
| Rotation Range | Customized |
| Precision | 0.15° |
| Speed | 0.03–1 RPM |
| Protection Rating | IP66 |
| Surface Anti-corrosion | C4/C5 |
| Motor Options | Electric / Stepper / Servo Motor |
| Surface Coating | Environmentally Friendly |
| OEM Service | Available |
| Packing | Plywood Box |
| Shipping | Sea / Air / Express / Rail |
Applications
The HT VE Worm Gear Slew Drive is primarily designed for single-axis solar tracking systems, where controlled and reliable rotation is required to adjust the photovoltaic array toward the optimal solar position. Its customizable rotation range makes it suitable for different tracker architectures, including linked solar trackers and multi-panel tracking systems. The self-locking worm gear mechanism can also help improve tracker stability when the system is stationary.
Beyond solar tracking, the VE series can be customized for equipment requiring controlled low-speed rotation, positioning, and load-holding capability.
Solar Tracker Slew Drive Maintenance & Operation
Proper operation and routine maintenance can help extend the service life of a slew drive and maintain reliable tracking performance.
1. Check mounting bolts regularly
Inspect mounting bolts and structural connections for loosening, especially during the initial operating period and after severe weather conditions.
2. Inspect for abnormal noise or vibration
Unusual noise, vibration, or changes in operating resistance may indicate insufficient lubrication, excessive loading, or other mechanical issues.
3. Check lubrication
Follow the recommended lubrication schedule and use suitable grease according to the operating environment and application requirements. Proper lubrication helps reduce wear between the worm and gear.
4. Inspect the sealing and housing
Regularly check the IP66 enclosed housing, seals, and mounting interfaces for visible damage, contamination, or water ingress.
5. Check the hard-stop system
For configurations with an inner hard stop, verify that the mechanical limit operates correctly and that the tracker does not repeatedly exceed the designed rotation range.
6. Monitor motor and control performance
Check the motor, cables, encoder or position feedback components, and control system to ensure stable tracking operation. Any abnormal current, overheating, or inconsistent positioning should be investigated promptly.
7. Inspect after extreme weather
After strong winds, storms, or other severe weather events, inspect the slew drive, mounting structure, bolts, and tracker alignment before returning the system to normal operation.
| Problem | Possible Causes | Recommended Measures |
| Abnormal Noise | Insufficient lubrication or gear wear | Check lubrication and transmission components |
| Increased Operating Torque | Lubrication issues, misalignment or excessive external load | Inspect mechanical system and lubrication condition |
| Excessive Backlash | Gear wear or loose installation | Check gear system and fasteners |
| Oil/Grease Leakage | Faulty seals or plugs | Inspect and replace damaged sealing parts |
| Slow Rotation Speed | Motor failure or increased mechanical resistance | Check motor, power supply and slew drive |
| Tracking Position Deviation | Mechanical backlash or sensor failure | Inspect both mechanical and control systems |
| Corrosion | Moisture, salt spray or damaged surface coating |
Check anti-corrosion treatment and sealing status |
| Vibration | Loose bolts, misalignment or internal wear | Inspect installation and transmission system |
Why Choose HT VE Worm Gear Slew Drive?
For solar tracker manufacturers and EPC contractors, the HT VE series offers an integrated solution for rotation, positioning, and load holding. Its hourglass worm gear design, IP66 enclosure, C4 anti-corrosion protection, customizable rotation limits, and multiple motor options make it suitable for a wide range of outdoor solar tracking applications.
HT provides OEM customization, technical support, drawings, and motor matching services to help customers select and configure the appropriate slew drive for their solar tracker design.
Minimum order quantity starts from 1 piece, while production capacity can reach 400 pcs/day depending on the model and production schedule. Standard delivery is approximately 7–45 days, depending on order quantity and customization requirements.
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