Spur Gears | Advanced Worm Shafts by Yieh Chen: Optimizing Gear Solutions for Compact Spaces

Spur Gear | Total solution for thread rolling machine, spline rolling, chipless process and precision gears transmission components manufacturer.

Spur Gears - Spur Gear
  • Spur Gears - Spur Gear

Spur Gears

A complete selection of cylindrical gear products.

Cylinder gears continue to play a key role in the gear world, and they account for more than 60-70% of the gear market (2004, Frost & Sullivan). With 35 years of development experience, Six Star can provide complete cylindrical gear solutions for our customers. Our main manufacturing capacity is shown in the table as follows:

Gear and shaft Capabilities
  • Quality Level
  • (1) DIN 2 Grade
    (2) JIS 0 Grade
    (3) AGMA 15 Grade
  • Manufacture Range
  • Gear: Max. Outside Diameter: 2000mm / Max. Module: 34mm
    Shaft: Max. Outside Diameter: 350mm / Max Length: 1500mm

In addition, the portfolio of cylindrical gears we can provide is quite broad, including external gear, internal gear, spur gear, helical gear, and shafts. We make sure our gears meet our customers' expectations and reach the highest transmission efficiency (99%) and high speed (10000 RPM).

The applications for our cylindrical gears are extensive: machine tools, textile machines, pumps, compressors, healthcare equipment, agriculture machines, printing machines, sawing machines, and so on. We provide custom design and manufacture services for customers and offer a warm and informative welcome to everyone who contacts us.


Sixstar can customize different kinds of gears according to customer's drawing or specific request.

Spur Gear Applications
  • Machine Tools
  • Do you want to offer excellent machine tools to your customers?
    Precise drive systems are vital parts on rotary tables, spindles, ATCs and gear reducers. Since 1975, Six Star has designed and manufactured gear components and gearboxes for drive systems or for the whole machine. We have produced items to be used in a wide range of products, such as milling machines, turning machines, CNC vertical machine centers, CNC horizontal machine centers, heavy-cutting machine centers, drilling machines, and other precision machine tools.
    In addition, Six Star produces spur gears, helical gears, double helical gears, bevel gears, worm and worm gears, and shaft and planetary gearboxes. Today, Six Star can provide precise, low-noise custom products within a range of specifications.

  • Aerospace
  • Six Star has manufactured gears for aerospace applications for more than 20 years. Since 2006, we have provided gears to well-known Aerospace Industry enterprises as a qualified vendor for their aircraft, and is certified by AS9100 quality system in year 2014. Aerospace gears manufactured by Six Star include spur gears, helical gears, worm and worm gears, and splined shafts. These gears can be used in control systems, pumps, planetary gears, landing mechanisms, and other aerospace applications.
    In order to increase cooperation with our aerospace partners, Six Star constructs a new manufacturing plant and headquarters in The Taichung City Precision Machinery Innovation Technology Park. This plant is with 19,140 square meters area and starts running production from 2013. With this expansion, Six Star will be able to offer even better service and shorter production time to our valued customers. The ability to produce diverse gear types in small batches to fit our aerospace partners' needs makes Six Star the ideal manufacturer for gears in the aerospace industry.

Applications Gallerys
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Spur Gears | Enhance Your Production Line with Yieh Chen Thread Rolling Machines: Precision Engineering for Optimal Performance

Yieh Chen Machinery Co., Ltd. is a leader in the global manufacturing of high-precision gears and transmission components. This ISO9001 & AS9100 certified company, a member of the Six Star Group, offers a comprehensive range of products including Spur Gears, spur gears, helical gears, gear racks, worms, worm shafts, and various specialized machines. Yieh Chen's commitment to quality and innovation is evident in their use of advanced technologies and adherence to stringent international standards, making their products essential for diverse and demanding applications in industries such as aerospace and agriculture.

Yieh Chen Machinery Co., Ltd is the affiliate of Six Star Group. Six Star was founded in 1975 by Six brothers and devoted to the manufacturing of precision gear products. Yieh Chen Machinery was established in 1984 into the market of machinery industry and is dedicated to produce Thread rolling machine and Spline rolling machine with high quality and durable lifetime. Yieh Chen Machinery Co., Ltd. is a gear manufacturer of gear for air screw compresser, cnc lathes, machining center, printing machines and more. Also, we providing quality thread rolling machine, spline rolling machine, multi forming machine.

Yieh Chen has been offering customers durable machine tools for manufacturing, both with advanced technology and 40 years of experience, Yieh Chen ensures that each customer's requirements are met.