Needle and feed dog feed at the same time, to prevent the sewing dislocation, beautiful stitches, suture line, best suited for smooth sewing and multilayer fabrics.
Worlden industrial Co.,Ltd.is a modernized enterprise specializing in the manufacture of sewing equipment. Worlden established the integrated system of product research, development, design, manufacture, testing, quality assurance, marketing, and after-sales service. Main products of sewing machines is lockstitch series, overlock, interlock, double needles, zigzag, auto-machines, speical machines. Excellent products come from perfect internal management. Worlden passed the certifications of IS09001 Quality Management System, IS014000 Environmental Management System, and ROHS and CE. Worlden sale network spreads nationwide, and 80% of the products are exported to more than 50 countries in Europe, Asia, South America, Africa, and, Winning good reputation from customers. Worlden always insist on the principle " SERVICE CUSTOMER, QUALITY FIRST" and sincerely welcomes friends all over the world to join hands with us to create mutual development and bright future.
Our Hot Products
Our Product Line
Our Package
Our Exhibition
Our Service
1. Your Inquiry related to our products or prices will be replied within 48 hours.
2. Well-trained and experienced staffs to answer all your enquires in fluent English.
3. Inspect the goods before sending shipment, Take pics for customer to confirm before    your goods packed.
4. We respect your feedback after receive the goods.
5. Protection of your sales area, ideas of design and alll your private information.
Products Advantages
1) The raw material cost is cheap.
2) Different material is available.Â
3) Can customized Logo; except copy brand.Â
4) Different colors and designs are available.
5) Price will base on the quantity, the more you order, the cheaper price you will get.
6)  Strict quality control from material test at the beginning until the last step of finishing.
7)  Timely response and whole process tracking inform.
FAQ
(1) Q: Are you available for on-the-spot invitation?
 A: We do welcome our new and old friends come here to have a visitatation.
Besides, we would send you our exposition and relative information to promote a face-to-face meeting if you'd like to.
(2) Q: Is the price offered changeable?
A: We offer reasonable price for every client, and the price is changeable according to purchasing amount.
If any interesting please feel free to contact us.
 Web:WWW.worldengroup.Com
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The slewing drive is a gearbox that can safely hold radial and axial loads, as well as transmit a torque for rotating. The rotation can be in a single axis, or in multiple axes together. Slewing drives are made by manufacturing gearing, bearings, seals, housing, motor and other auxiliary components and assembling them into a finished gearbox.
Slewing drives function with standard worm technology, in which the worm on the horizontal shaft acts as the driver for the gear. The rotation of the horizontal screw turns a gear about an axis perpendicular to the screw axis. This combination reduces the speed of the driven member and also multiplies its torque; increasing it proportionally as the speed decreases.[2] The speed ratio of shafts depends upon the relation of the number of threads on the worm to the number of teeth in the worm wheel or gear.[3]
As technology has improved, more slewing drives are using hourglass worm technology, in which the worm is shaped to engage more teeth in the gear.[4] This increased tooth engagement results in greater strength, efficiency and durability.
slew drive, slewing drive
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