Self Locking Worm Gear
Self-Locking Worm Gear: An Introduction
A self-locking worm gear is a type of worm gear that is commonly used in industrial applications such as lifts and elevators. Unlike other types of gears, a self-locking worm gear does not allow the interchangeability of the input and output gears. For this type of gear, the worm always acts as a driving gear and the spur gear as a driven gear- vice versa is not possible. If you try to run it otherwise, it will lock automatically.
This type of gear allows for a very high gear reduction ratio, which is especially useful in situations where loading against the gravitational force is required, and when the input and output shafts are perpendicular to each other. A self-locking worm gear can be used to achieve a reduction ratio of up to 200:1 without increasing the size of the gearbox.
One of the main reasons for the high speed reduction of worm gears is the fact that they use fewer moving parts. This is a very economical solution to speed reduction. Another benefit of worm gears is their quiet operation.
Despite their efficiency, worm gears must be lubricated with specialized lubricants with high viscosity. This lubricant also needs to be filtered and on-site for optimal performance. The sliding motion of worm gears causes significant frictional losses, so they require a lot of lubrication. Additionally, it is difficult to predict how long a worm gear will last, as its durability is determined by the friction coefficient of the tooth, which is influenced by the material of the gear and the surface roughness.
Advantages of Self-Locking Worm Gears
- Can achieve a large reduction ratio (up to 200:1) without increasing the size of the gearbox
- Economical solution to speed reduction due to fewer moving parts
- Quiet operation
Disadvantages of Self-Locking Worm Gears
- Generates a significant amount of heat, which can be addressed with proper heat removal provisions
- High contact stress due to smaller contact area between the worm and gear, which can be addressed with an enveloping worm gear
Installation, Maintenance, and Repair
Installation of self-locking worm gears requires proper alignment of the worm and gear, as well as proper lubrication. Maintenance involves regular inspection and lubrication, as well as replacement of worn or damaged parts. Repairs may involve replacing worn or damaged parts or realignment of the worm and gear.
Other Products Offered by Our Company
In addition to self-locking worm gears, our company supplies various plastic gears used in industry, such as agricultural gearboxes, power output shafts, sprockets, fluid couplings, gears and racks, detachable chains, pulleys and pulleys, planetary gearboxes, timing pulleys, bushings, and more. We pride ourselves on providing high-quality products at favorable prices, along with considerate service. We welcome customers to come to us for drawing or sample customization.
Q&A
1. What is a self-locking worm gear?
A self-locking worm gear is a type of worm gear that does not allow the interchangeability of the input and output gears.
2. What are the advantages of self-locking worm gears?
Self-locking worm gears can achieve a large reduction ratio without increasing the size of the gearbox, are an economical solution to speed reduction, and operate quietly.
3. What are the disadvantages of self-locking worm gears?
Self-locking worm gears generate a significant amount of heat, which can be addressed with proper heat removal provisions, and have high contact stress due to a smaller contact area between the worm and gear, which can be addressed with an enveloping worm gear.
4. How do you install a self-locking worm gear?
Installation of self-locking worm gears requires proper alignment of the worm and gear, as well as proper lubrication.
5. What other products does your company offer?
In addition to self-locking worm gears, our company offers various plastic gears used in industry, such as agricultural gearboxes, power output shafts, sprockets, fluid couplings, gears and racks, detachable chains, pulleys and pulleys, planetary gearboxes, timing pulleys, bushings, and more.
About us
We guarantee top-quality products at the best prices in China! Special orders are welcome, and if you’re interested in any of our products, feel free to reach out for more detailed information. We ensure our products are safe, high-quality, and reasonably priced. Please contact us as soon as possible if you’d like to learn more. We’re eager to cooperate with you!
A large portion of our products is exported to Europe and the Americas, with both standard and custom options available. We can manufacture according to your drawings or samples, using standard materials or as per your specific requirements. Choosing us means choosing reliability.
Materials Available
1. Stainless Steel: SS201, SS303, SS304, SS316, SS416, SS420
2. Steel:C45(K1045), C46(K1046),C20
3. Brass:C36000 ( C26800), C37700 ( HPb59), C38500( HPb58), C27200(CuZn37), C28000(CuZn40)
4. Bronze: C51000, C52100, C54400, etc
5. Iron: 1213, 12L14,1215
6. Aluminum: Al6061, Al6063
7.OEM according to your request
Surface Treatment
Annealing, natural canonization, heat treatment, polishing, nickel plating, chrome plating, zinc plating,yellow passivization, gold passivization, satin, Black surface painted etc.
Processing Method
CNC machining, punch,turning, milling, drilling, grinding, broaching, welding and assembly
QC & Certificate
Technicians self-check in production,final-check before package by professional Quality inspector
ISO9001:2008 , ISO14001:2001,ISO/TS 16949:2009
Package & Lead Time
Size: Drawings
Wooden Case/Container and pallet, or as per customized specifications.
15-25days samples. 30-45days offcial order
Port: Shanghai/Ningbo port