The gear accuracy of gear reducer has 12 grades, which are represented by the numbers 1, 2, 3,... 12 in order of accuracy from high to low. Most commonly used are Grade 5 ~ 9 accuracy. In addition, according to the different requirements for motion accuracy, transmission stability and load distribution uniformity, the tolerances of each accuracy level are divided into three groups, I tolerance group, II tolerance group and III tolerance group. The accuracy grade of gear of gear reducer shall be determined according to the purpose of transmission, service conditions, transmission efficiency, circumferential speed and other economic and technical indexes. Grade 5 gears are precision grade. Machining method: model machining on precision gear machine tool with very small periodic error. The tooth surface adopts precision grinding, and large gears are ground or shaved after Hobbing with precision hobbing. The tooth surface roughness reaches 0.4-0.8. Scope of application: precision gear for indexing mechanism; Used for gears with high speed and high requirements for running stability and noise; Gears for high-speed steam turbines, etc. Level 7 gear is a relatively high precision level. Machining method: model machining on high-precision gear machine tool. The non quenched tooth surface is cut with high-precision tools; Hardened gears need finishing (grinding, shaving, grinding, etc.). The tooth surface roughness reaches 1.6. Scope of application: for gears with high speed, small load or reverse rotation; The feed gear of the machine tool needs to move a matched gear; Medium speed reduction gear; Aircraft gear; Medium speed gear with herringbone teeth, etc.
Our products are mainly exported to Japan, the United States, Germany, Southeast Asia and other countries and regions. Our customers include many OEM customers specializing in construction machinery. We have partnered with several of the Fortune 500 companies to become one of their major foundry suppliers in China.
How to provide goods?
Usually we will ship the goods to the sea. The factory is only 460 kilometers away from the port. It is very convenient and convenient to transport the goods to any other country. Of course, if your cargo is very urgent, Ningbo Airport and Shanghai Airport are also nearby.
What is the payment term?
When we provide you with a quotation, we will negotiate with you: EXW, FCA, FOB, CIF, CRF, DAP Etc. For mass production, you need to pay 30% of the deposit before production and 70% of the balance before shipment. Our most common way is T/T.
How to ensure the quality of your products?
First, we will check after each process. For finished products, according to customer requirements and international standards.
How many employees does your company have? What is the relationship between technicians?
We now have more than 180 employees, including 36 engineers and 28 QCs.
What is the ability of your company?
We have a number of production lines with a monthly production capacity of 1,600 units and an annual production capacity of 20,000 units.
