Gears have been used by mankind for many centuries. These are mechanical devices that force objects to create a rotary motion. The applications of ring gears are multiple: many ancient artifacts document the use of ring gears configuration within gear drives for chariots, clocks, locomotives and airplanes. Some of the earliest known gears were made from wood: these early ring gears were used in the area of text mills and grind mills. In the Middle Ages many gears were designed from stone. The ring gear technology quickly evolved into electric motors and steam engines during the industrial revolution.

Nowadays ring gears are the beating heart of:

• • Axles;
• • Transmissions;
• • Gearbox;
• • Gear reducers;
• • Power drives;

Wuxi Gear Tech Co.,Ltd is specialized in the production of ring gears following up all the production process, from the blank material (usually made by hot rolling) to the final heat treatment. And we have your formula to do that: we use the best "state of art" technologies, the only way you can achieve highest quality levels and cost competitiveness on mass production.

This formula is BROACHING + NITRIDING.

By the first one we machine ring gears from 150mm up to 450mm of internal diameter (550mm OD), teeth's module 8, height up to 350mm, guaranteeing quality DIN 7/8. WGT has its own broaching machine, designed with suppliers according to years of experience in this field, fully automatic, with a capacity of 160TON.




By the second we ensure the wear resistance of the ring gear during thousands of working cycles but without loosing in quality. Our furnaces and our specific treatment cycles, working at lower temperatures and controlling the deformations during process, can reach customers requirements ensuring quality DIN 8.

Last but not the least, our procedures and our laboratory, equipped by chemical and physical testing machines, take care of the product at each step of its grow, identifying problems and tracing its story. "We know mother and father, who attended the birthdays and which gift they brought".

"WHAT IS IMPORTANT FOR YOU IS MORE IMPORTANT FOR US."

The heat treatment is one of the most difficult process but at the same time one of the most important for mechanical components. The working life of those last ones strictly depends on the results of this production phase and the variables to be controlled are many. Apart from the micro-structural characteristics, to obtain small deformations on the pieces caused by the treatment temperatures is the main goal of a succeeding process of this kind. An this can be done only with a great experience in this field and the best technologies.

Nitriding is mainly the best choice for treatment of ring gears. Working at low temperatures (500°C - 550°C) it cause less deformations ensuring at the same time the best results in term of hardness and resistance to fatigue and wear. WGT's plant can nitride components from 0,5kg to 200kg (the first nitriding furnace has a capacity of 5ton), both steel and casting, keeping the white layer and brittleness under control. Another important topic for this kind of treatment is a correct removal of any residual oil particles from the surface of the piece that can prevent a homogeneous diffusion of nitride. To avoid this, WGT choose the best "state of art" hydrocarbon washing machine, the first one of this kind in China, able to guarantee the complete cleanliness agains a normal water based machine. Some materials: 42CrMo, 20CrMn, QT600, C45, 38CrMoAl, others...

Carburizing, instead, is maybe most diffused and easier comparing to the first one. WGT invested in a complete multipurpose system with two multi-chamber furnaces (1ton capacity each), 2 tempering furnaces, 1 vacuum cleaning machine and a subzero treatment furnace. Special designed basket able us to reduce lead times and give to the customer a better service.

To complete this field, WGT's lab can manage the common and required material tests, both physical and chemical, to ensure component's material characteristics and dimensions. A traceability procedure enable us to review the history of the treatment (cycles, temperatures, etc…) at any time for years ahead after the delivery of the piece to the customer ensuring a prompt reply in case of problems.


"CONSISTENCY AND CONTINUITY OF RESULTS IS OUR FIRST THOUGHT."