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| Categories | Slew Ring Drive | 
|---|---|
| Brand Name: | HT | 
| Model Number: | VE9" | 
| Certification: | CE, ISO9001 | 
| Place of Origin: | Changzhou, China | 
| MOQ: | 1 piece | 
| Price: | USD 280~504 / pc | 
| Payment Terms: | L/C, T/T, Western Union | 
| Supply Ability: | 2000 pcs per month | 
| Delivery Time: | 15~45 days | 
| Packaging Details: | plywood box | 
| Model: | 9 inches | 
| Gear Ratio: | 61:1 | 
| Application: | Adjustable Mount Bracket | 
| Driver: | Hall Sensors gear motor | 
| Installation: | Vertical | 
| Color: | As Requested | 
| Backlash: | 0.15° | 
| Company Info. | 
| Changzhou Hangtuo Mechanical Co., Ltd | 
| Verified Supplier | 
| View Contact Details | 
| Product List | 
9 Inches Reverse Self Locking Worm Gear Slewing Ring For Adjustable Mount Bracket
Self Locking Worm Gear Slewing Ring Description
A distinctive feature of the rotary worm gear drive is the feature between static self-locking and dynamic self-locking. When the startup efficiency ηA ≤ 0.5, static self-locking exists. At this time, it is impossible to drive the worm by rotating the slewing bearing. Sometimes, this self-lock can be invalidated by some external force such as external vibration. At this time, the worm can be driven by the rotary slewing bearing. When the operating mechanical efficiency η ≤ 0.5, the helix angle γm=2.5°~4°, which can achieve dynamic self-locking (that is, automatic locking during movement), which can be achieved by relying on the contact stress and friction of the tooth surface.
In many drive systems, self-locking is very important. In general,
using additional brakes or blocks is the most common method.
Self-locking gears cannot completely replace the role of brakes.
The rotary worm gear drive is static self-locking. In some special
cases, such as earthquakes, the self-locking is still effective
when there is a tendency to reverse rotation. Our slewing drive has
features of reverse self-locking because of worm gear self-locking
characteristics. This feature greatly enhances the stability of the
host operating and safety factor. Compared to the traditional swing
products, slewing drive gearbox is easy to install, easy to
maintain, and saves considerable installation space.
VE Model Performance Parameters
| VE Model Performance Parameters | ||||||||||||
| Model | Rated Output Torque (N.m) | Holding Torque (kN.m) | Tilting Torque (kN.m) | Axial Load (kN) | Radial Load (kN) | Ratio | Efficiency | Precision (Degree) | IP | Working Tep(℃) | Self-locking | Weight(kg) | 
| 3" | 806 | 9 | 5 | 22 | 15 | 31:1 | 40% | ≤0.15 | 66 | -40~+80 | Yes | 12kg | 
| 5" | 962 | 30 | 6 | 16 | 27 | 37:1 | 40% | ≤0.15 | 66 | -40~+80 | Yes | 18kg | 
| 7" | 7344 | 60 | 10 | 34 | 58 | 51:1 | 40% | ≤0.15 | 66 | -40~+80 | Yes | 32kg | 
| 8" | 8000 | 70 | 14 | 50 | 80 | 50:1 | 40% | ≤0.15 | 66 | -40~+80 | Yes | 28kg | 
| 9" | 8784 | 80 | 16 | 60 | 130 | 61:1 | 40% | ≤0.15 | 66 | -40~+80 | Yes | 52kg | 
| 12" | 11232 | 100 | 25 | 77 | 190 | 78:1 | 40% | ≤0.15 | 66 | -40~+80 | Yes | 65kg | 
| 14" | 12240 | 120 | 48 | 110 | 230 | 85:1 | 40% | ≤0.15 | 66 | -40~+80 | Yes | 88 kg | 
| 17" | 14688 | 136 | 67 | 142 | 390 | 102:1 | 40% | ≤0.15 | 66 | -40~+80 | Yes | 135 kg | 
| 21" | 18000 | 140 | 89 | 337 | 640 | 125:1 | 40% | ≤0.15 | 66 | -40~+80 | Yes | 192 kg | 
| 25" | 21600 | 150 | 112 | 476 | 950 | 150:1 | 40% | ≤0.15 | 66 | -40~+80 | Yes | 251 kg | 
Advantages
1. Strong overturning moment based on slewing ring
2. Adopt enveloping worm drive
3. Drive larger load for using multi tooth contact
4. Better static self-locking function
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