What Is The Efficiency of a Screw Jack? Efficiency of Screw Jacks? What Is Lead Screw Efficiency? Trapezoidal Lead Screws, Lead Screw Ball Screw Formulas.

• Application：Motor, Electric Cars, Motorcycle, Machinery, Marine, Toy, Agricultural Machinery, Car, Lifting and Positioning
• Type：Worm Reducer
• Transport Package：Standard Exporting Plywood Cases
• Trademark：JACTON
• Origin：Made in China

=== Base Info ===

• Model NO.：250 KG to 100-Ton
• HS Code：8428909090
• Production Capacity：6000PCS Per Month

=== Description ===

Basic Info.

Model NO. 250 KG to 100-Ton HS Code 8428909090 Production Capacity 6000PCS Per Month

Product Description

What Is The Efficiency of A Screw Jack? Efficiency Of Screw Jacks? What is Lead Screw Efficiency? Trapezoidal Lead Screws, Lead Screw Ball Screw Formulas.

The efficiency of screw jacks varies from model to model and depends on the worm ratio and the acme thread pitch. Details are given in the catalogue. Typically an acme thread screw jack has efficiency at around 20%. Ball screw jacks have efficiencies that are typically two times higher around 40%-55%. Ball screws offer a highly efficient means of converting rotary motion to linear motion. A ball screw is an improvement over an acme screw with regards to speed, accuracy, and efficiency. Precision ball screws have a number of bearing balls that transfer the load between the nut and screw. Low friction improves speed, force, and duty cycle.

Lead Screws vs Ball Screws: When determining which types of screws is best for a movement-centric application, an engineer has several options. Often, the decision must be made as to whether a lead screw assembly or a ball screw assembly will work best in the application. While these two types of screws will accomplish the same task, they each have key differences in the way they function and are maintained.

How do ball screws and lead screws work?
The key difference between ball screws and lead screws is the way that the load is carried between each moving surface. The name"ball screw" comes from the recirculating ball bearings within the screw used to reduce friction between the surfaces. Each ball screw assembly features matching helical grooves with its nut that eliminate the sliding friction found in other types of screws.
Lead screws do not use these recirculating ball bearings. This means there is greater contact between the two surfaces, leading to increased sliding friction in the application. For some assemblies, this friction does not negatively impact operation, but in other situations where limiting friction is crucial, this can be a deciding factor between the two types of screws.

Benefits of a Lead Screw Assembly
Lead screws are often viewed as a low-cost alternative to ball screws. Though this low cost does mean less efficient operation, some applications can function effectively with the level of efficiency lead screws provide.
Applications with short cycle times at slow speeds can often function well with a lead screw assembly at a lower cost than ball screws. Though lead screws do often require more up-front testing than ball screws, they can be customized to meet some performance requirements. In addition, they perform better than ball screws in vertical applications and are often used by OEM applications. ACME screws in particular also typically have a higher dynamic capacity than ball screws.

Benefits of a Ball Screw Assembly
Though ball screws have a higher cost, many applications require the high level of efficiency and speed available with these screws. Ball screws are more reliable and predicable, and are therefore replaced less frequently than lead screws. They also have the ability to perform during long cycle times.
A ball screw assembly works best in applications when smooth motion is required, due to its limited friction. They also may be best for assemblies that have strict requirements in other areas, such as speed or weight.

Which screw type is best for you?
Though ball screws and lead screws are used to accomplish the same tasks, they each have areas of strength and weakness that may make them a better fit for one application over another. Having an expert ball screw or lead screw manufacturer that you can rely on to provide recommendations based on your specific application is crucial in finding the screw type that is the best fit for your application. 






Important Note: The original actual pictures, videos, designs and molds came from the audited manufacturer and supplier - JACTON Industry Co.,Ltd. Don't copy the pictures, videos, models, designs and drawing dimensions without JACTON permission.

Shipment and Packing Pictures 
Shipping:
1. Ocean freight: seaport to seaport, price terms CIF, FOB, EXW, CFR etc.
2. Air freight: airport to airport, price terms EXW, CRF etc.
3. Air courier: DHL, FEDEX, UPS, TNT door to door shipment, price terms DDU, CPT etc.

Packing: 
100% standard exporting plywood cases. 
Note: International Exporting Standard Wooden Material with Free Fumigation.


JACTON Advantages
1. International standard materials for All JACTON products. 
2. 100% quality assured with double quality inspections.
3. 100% safety transportation with strong standard export plywood cases materials (free fumigation).
4. Internationl sales engineers have professional knowledge and skills on our standard products and service.
5. All our standard products with 2D CAD Drawings and 3D CAD Models.
6. Custom design available, OEM service available, Free engineering advice and Customer label available.


Finished Projects
1. Theatrical solutions stage and orchestra platform lifts projects. Customers are from France, Australia, Netherlands, United Kingdom, Spain and Canada. 
2. Hydroelectric power station projects and water conservancy projects. Customers are from Vietnam, Australia, Malaysia, Russian Federation, Nepal, Pakistan, Belgium, United States and United Kingdom. 
3. Aircraft maintenance platforms and docking systems projects. Customers are from Pakistan, Singapore and United Arab Emirates.  
4. Solar panel tracking system projects. Customers are from Spain, India and Canada. 
5. Bolted steel storage tanks and silos lifting solutions. Customers are from South Africa, United States, Mexico, Russian Federation, Brazil and Vietnam. 
6. Dish antenna elevation and azimuth positioning projects. Customers are from Singapore, Malaysia and United States. 
7. Railway wagon projects. Customers are from South Africa. 
8. Beverage can production lines. Customers are from Netherlands, United States, Thailand and Indonesia. 
9. Steel factories production lines. Customers are from Iran, United States and Turkey. 
10. Continuous PU sandwich panel production lines. Customers are from Thailand and United Kingdom.  


JACTON Customers Areas(Countries)
1. American Countries: United States, Mexico, Canada, Chile, Bolivia, Brazil, Colombia, Dominican Republic, Honduras, Costa Rica, Panama, Puerto Rico, Jamaica, Trinidad and Tobago, Aruba, Argentina, Peru, Venezuela.
2. European Countries: Russia, Germany, Turkey, France, United Kingdom, Italy, Spain, Ukraine, Poland, Romania, Netherlands, Belgium, Greece, Czech Republic, Portugal, Sweden, Hungary, Belarus, Austria, Switzerland, Bulgaria, Denmark, Finland, Slovakia, Norway, Ireland, Croatia, Georgia, Armenia, Lithuania, Slovenia, Estonia, Cyprus, Luxembourg, Iceland.
3. Asian Countries: Malaysia, Indonesia, Singapore, Pakistan, Philippines, Vietnam, United Arab Emirates, Thailand, Saudi Arabia, Iran, Turkey, India, Nepal, Yemen, Taiwan, Sri Lanka, Israel, Jordan, Kuwait, Qatar.
4. Oceanian Countries: Australia, New Zealand, Fiji.
5. African Countries: South Africa, Egypt, Ethiopia, Nigeria, Kenya, Tanzania. 


JACTON Products List
1. Manual Worm Gear Screw Jacks, Electric Worm Gear Screw Jacks.
2. Worm Gear Screw Jacks Series: JT series acme screw jacks, JTC series cubic screw jacks, JTW series machine screw jacks, JTM series worm screw jacks, JTB series ball screw jacks, JTD series cubic ball screw jacks, JSS series stainless steel screw jacks, JTS series bevel gear screw jacks, Non-standard series screw jacks. 
3. Spiral Bevel Gearboxes Series: JT series bevel gearboxes, JTP series cubic bevel gearboxes, JTA series aluminum bevel gearboxes, JTH series hollow shaft bevel gearboxes, BSS series stainless steel bevel gearboxes.  
4. Screw Lifting Systems and Systems Accessories: two-jacks systems, three-jacks systems, four-jacks systems, six-jacks systems, eight-jacks systems. Accessories cover couplings, universal joints, cardan shafts, connecting shafts, electric motors, geared motors and reducers, hand wheel with crank handles, pillow block bearings, flange block bearings, rod end bearings, stop nuts, limit switches, safety nut, travel nuts, linear shafts and bearings, linear guides and bearings, telescopic spring covers, bellows boot, protective tube, trunnion adapter plates, trunnion mounting brackets, motor flanges, rotary encoders, potentiometers, frequency inverters and position indicators etc.
5. Heavy Duty Linear Actuators Series: Parallel heavy duty linear actuators, In-line heavy duty linear actuators.
6. Geared Motors and Speed Reducers Series: helical gearmotors R series, helical bevel gearmotors K series, parallel shaft helical gearmotors F series, helical worm gearmotors S series, small AC gear motor series and worm gear motor reducer series.


Contact Information
JACTON Industry Co.,Ltd (VAT No.: 9144190007026567X3, registered Capital 500000CNY) is a leading manufacturer and supplier in China. JACTON products include worm gear screw jacks, manual screw jacks, electric screw jacks, machine screw jacks, stainless steel screw jacks, custom made screw jacks, ball screw jacks, spiral bevel gearboxes, right angle gearboxes, worm screw jack systems and accessories, heavy duty linear actuators, gearmotors and speed reducers, linear motion products and power transmission products. We are Alibaba, Made-In-China and SGS (Serial NO.: QIP-ASI192186) audited manufacturer and supplier. We also have a strict quality system, with senior engineers, experienced skilled workers and practiced sales teams, we consistently provide the high quality equipments to meet the customers electro-mechanical actuation, lifting and positioning needs. Jacton Industry guarantees quality, reliability, performance and value for today's demanding industrial applications.
Website (English): screw-jacks.en.made-in-china.com
Website (English): screw-jacks.en.made-in-china.com
Website (Chinese): screw-jacks.en.made-in-china.com