Changzhou Hangtuo Mechanical Co., Ltd
Providing Innovative and Cost-effective Slewing Drives
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VE9 Compact Worm Gearbox Slewing Drive For Axis Solar Tracker
Compact Worm Gearbox Description
Dependable delivery – most orders ship in 15 days or less, for busy seasons, in 30 days
Technical support – engineers are standing by to help
High-quality slewing drives at a fair price – we have our own factory with products meet or exceed the quality of all major brands and we will use economic shipping methods based on different orders to keep you within budget
Operations & Maintenance-operations and maintenance is easy and lower your fee
VE9 Worm Gear Sets Data Sheet
| Model | Ratio | Rated Output Torque(N.m) | Tilting Torque(N.m) | Holding Torque(N.m) | Axial Load(kN) | Radial Load(kN) | Efficiency | Self-locking | Weight(kg) |
| 3" | 31:1 | 600 | 1500 | 1800 | 22 | 15 | 40% | Yes | 12 |
| 5" | 37:1 | 800 | 5000 | 9200 | 16 | 27 | 40% | Yes | 18 |
| 7" | 57:1 | 1750 | 7000 | 13200 | 34 | 58 | 40% | Yes | 32 |
| 8" | 51:1 | 2250 | 11200 | 20400 | 50 | 80 | 40% | Yes | 28 |
| 9" | 61:1 | 2250 | 16000 | 30800 | 60 | 130 | 40% | Yes | 52 |
| 12" | 78:1 | 4300 | 25000 | 40560 | 77 | 190 | 40% | Yes | 65 |
| 14" | 85:1 | 5600 | 48000 | 44200 | 110 | 230 | 40% | Yes | 88 |
| 17" | 102:1 | 6750 | 67000 | 53040 | 142 | 390 | 40% | Yes | 135 |
| 21" | 125:1 | 16000 | 89000 | 65000 | 337 | 640 | 40% | Yes | 192 |
| 25" | 150:1 | 21450 | 112000 | 89000 | 476 | 950 | 40% | Yes | 251 |
Installation
1. Preparation
1.1 Check the slew drive for physical damage.
1.2 Clean supporting surfaces
2. Mounting Bolts
As the gearbox manufacturer, we do not supply, warrant or recommend the mounting fasteners used. Please take great care in specifying this item which will attach our product to yours.
Prescribed sizes, number and quality grades shall be used.
Grip ratio (grip length to diameter of bolt) shall be observed, from minimum ≥1.5 to maximum ≤2.
Bolts with a fully threaded shaft should be not permissible.
Slew drive function, lifespan, and durability of the bolt connection are affected in case of non-compliance.
Use flat washers of appropriate size and strength choice of tightening torques so that the permissible interfacial pressure is not exceeded.
Mounting bolts are in normal cases adequately secured by correct preloading.
Notice: Use of split rings, split washers, etc. not permissible.
Tightening Torque and initial preloads for mounting bolts.
| Tightening Torque | Mounting Bolt Dimension | |||||
| Class | M6 (1/4-20UNC) | M8 (5/16-18UNC) | M10 (3/8-16UNC) | M12 (7/16-14UNC) | M16 (5/8-11UNC) | M20 (3/4-10UNC) |
| Class 8.8 | 10.2 N.M | 24.7 N.M | 49 N.M | 85.5 N.M | 212.2 N.M | 414 N.M |
| Class 10.9 | 14.3 N.M | 34.8 N.M | 68.9 N.M | 120.2 N.M | 298.4 N.M | 582.1 N.M |
| Class 12.9 | 17.2 N.M | 41.7 N.M | 82.7 N.M | 144.2 N.M | 358.1 N.M | 689.5 N.M |
