Solar Tracker Slew Drive For Single Axis Solar Panel Tracking
System
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 |
