OEM Grinding Cylindrical Gear High Precision Spur Gear for CNC Machine Tools

Grinding gear spur gear cylindrical gear with high precision

Gear grinding is an important precision machining technology. It uses specific grinding tools and processes to perform fine machining on the gear tooth surface in order to achieve the goals of improving gear accuracy, improving surface quality, and reducing noise.

The applications of grinding gears:

Grinding gears are widely used in fields with high requirements for gear accuracy and surface quality, such as heavy-load, high-precision, high-rigidity, high-speed, long-stroke CNC machine tools, milling machines, drilling machines, lathes and other machine tools, as well as factory automation rapid loading and unloading mechanisms, robot arm grasping mechanisms, intelligent stereoscopic warehouses and other automation equipment and systems.

The principle of grinding gears

Gear grinding is the process of using a grinding tool (such as a grinding disc, grinding wheel, etc.) and fine-grained abrasives to apply pressure between the workpiece material and a closely fitting surface (called a grinding plate) to gradually achieve the desired finish and accuracy of the gear tooth surface through relative motion. During the grinding process, liquid abrasive is fed into the gear pair, and as the gear rotates, a small amount of metal is removed to produce the ideal tooth surface contact pattern.

Process requirements for grinding gears

Before grinding gears, it is usually necessary to pre-treat the gears to meet the requirements of the grinding process. These requirements include:

1. There must be a certain amount of root cutting at the root of the tooth: this is to play the role of an empty knife groove and is conducive to the distribution of residual stress at the root of the gear after carburizing and quenching, thereby improving the bending strength of the gear. If there is no root cutting at the root of the gear before grinding, a step will be generated at the root of the tooth after grinding, resulting in stress concentration, which seriously affects the bending resistance of the gear.
2. The involute length of the gear after grinding should be long enough: to ensure the smooth operation and load-bearing capacity of the gear. Due to the root cutting of the tooth root, the involute length of the gear after grinding may be insufficient, resulting in a decrease in the overlap of the gear, which will cause vibration and noise during the meshing process.

Spiral Bevel Gears:

DINGSCO-We are committed to being the best high-precision spiral bevel gears supplier.
1. 30 years experience in manufacturing industrial gears.

Our company was formerly known as Changsha Double Star Gear Industrial Co., Ltd, which was established in 1994. It is a directly affiliated university-run enterprise founded by Central South University Professor Zeng Tao, the leading expert on spiral bevel gears in China. It was later renamed as Changsha Senjie Gear Co., Ltd (abbreviated as "CSG") in 2016. CSG is a production R&D base specializing in professional design, reserch, manufacture and sales of high-quality small module spiral bevel gears and high reduction hypoid gears and cylindrical gears. In 2023, Hunan Dinghan New Material Technology Co., Ltd. was established as a specialized international export business department. CSG has strong scientific research and development capabilities and is also equipped a full set of advanced equipment including seven-axis five-linkage CNC spiral bevel gear grinding machines and gear milling machines. By making the best use of the scientific and technological achievements and equipment of the Gear Research Institute of Central South University, machanical processing, heat treatment and testing. We have developed high-quality products featuring high reduction, high speed, heavy load, low noise and less teeth for users.

With the quality policy of "scientific and technological innovation, quality first, being first-class firm and customer‘s satisfaction", we have won the trust of well-known domestic and abroad enterprises with stable and excellent quality. It is committed to be a pioneer of the industry of China's small-module spiral bevel gears, and is dedicated to providing service for any related industry requiring industrial robots, CNC turning and milling compound power tool turrets, industrial sewing machines, reducers, bicycles, power tools and aeromodelling. We sincerely look forward to your cooperation!