Grinding Gears High Precision Spur Gears Cylindrical Gears Helical Gear

Product: Grinding Gears High Precision Spur Gears Cylindrical Gears Helical Gear

1. Cylindrical gears are a basic gear type that are widely used in various mechanical transmission systems. They are mainly used to transmit power and motion between two parallel shafts.

2. The characteristic of cylindrical gears is that the tooth surface of the gear is cylindrical, and the tooth shape is usually straight or helical (helical teeth).

Product introduction:

• Tooth shape: The tooth surface of spur gears is straight, while the tooth surface of helical gears is spiral. Helical gears provide smoother transmission and lower noise levels.
• Meshing mode: The meshing of cylindrical gears is line contact, which means that the meshing of the gears is carried out on a pair of teeth of the gears. Line contact can withstand greater loads than point contact of bevel gears.
• Transmission efficiency: The transmission efficiency of cylindrical gears is very high, and the theoretical maximum efficiency can reach more than 97%. Actual efficiency is affected by factors such as gear accuracy, lubrication conditions and operating speed.
• Manufacturing: Cylindrical gears can be manufactured through a variety of processing methods, including milling, grinding, shaving, etc. Machining accuracy and surface quality have a great impact on the performance of gears.
• Materials and heat treatment: Cylindrical gears are usually made of steel or cast iron and undergo heat treatments such as quenching and tempering according to the requirements of the application to improve their hardness and wear resistance.
• Design and calculations: Several factors need to be considered when designing cylindrical gears, including the diameter of the gear, the number of teeth, the module, the pressure angle, the tooth addendum height and the tooth root height. These parameters determine the size and load-bearing capacity of the gear.
• Application: Cylindrical gears are widely used in various machinery and equipment, such as automobiles, machine tools, wind and hydropower equipment, industrial machinery, etc.

About us:

1. we committed to be the best high precision spiral bevel gears supplier.

2. Our company 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.

3. We are 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.

4. Our products can meet industry requiring such as industrial robots, CNC turning and milling compound power cutter tower, industrial sewing machines, reduction gears, bicycles, power tools and aeromodelling.

Our equipments:

• 15 gear milling machines: less than 4 modes (including one five-axis CNC gear milling machine).
• 3 high-speed CNC gear hobbing machines with less than 3 modes.
• 10 gear grinding machines with less than 3 modes.
• 5 high-speed rolling inspection machines.
• 3 gear lapping machines.
• 1 measuring center.
• 4 CNC cars.
• 4 grinding machines (including flat grinding, internal grinding and external grinding).
• CNC2 sets.
• 10 manual rolling inspection machines (including one Klingberg).

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!