Precision 90°Angle Gear for Industrial Planetary Speed Reducer Use

The 90-degree angle gear is the core component of the planetary reducer to achieve orthogonal power transmission (the input/output shafts are staggered at 90 degrees). Its performance directly determines the torque capacity, transmission efficiency and life of the reducer.

90-degree angular gear function logic chain:

Planetary gear train output → angular gear pair (bevel gear) meshing → power transfer 90° → load shaft output

Note: Compared to worm gear solutions, bevel gear angular transmission efficiency is increased by 15%-25% and lifespan is increased by 2-3 times.

Technical Features of Planetary Reducer 90-Degree Angle Gears

(I) High Precision and Low Backlash

The bevel gears utilize a helical tooth design with a curved tooth contact line, resulting in a smoother meshing process and reduced vibration and noise. Furthermore, precision grinding processes (such as four-axis CNC grinding) control tooth profile accuracy to ensure minimal backlash (tooth clearance), meeting the highest positioning accuracy requirements.

(II) Compactness and High Rigidity

Space Optimization: The 90-degree right-angle layout significantly reduces the axial dimensions of the equipment, making it particularly suitable for confined spaces (such as robotic arm joints and side drive units in automated production lines).

Structural Reinforcement: The gearbox is constructed of ductile iron or high-strength alloy steel, supported by rigid bearings, to withstand high radial loads and impact forces.

(III) Efficient Transmission and Durability

Transmission Efficiency: Spiral bevel gears achieve an efficiency exceeding 95%, significantly higher than worm gear transmissions (approximately 60%-70%).

Life Guarantee: The tooth surfaces undergo a carburizing and quenching treatment, achieving a hardness of HRC58-62. A forced lubrication system reduces wear and extends service life.

Typical Application Scenarios for Planetary Reducers with 90-Degree Angle Gears

(I) Industrial Automation Equipment

In mechanisms requiring tight steering, such as robot joints and indexing tables, 90-degree angle gears combined with planetary reducers achieve high-precision positioning and optimized spatial layout.

(II) Heavy-Duty Machinery Systems

In mining conveyors and metallurgical rolling equipment, for example, their high-rigidity structure can withstand heavy load shocks while simplifying drive train design through right-angle output.

(III) Precision Machining Machinery

In the feed systems of CNC machine tools, the smooth steering characteristics of bevel gears can reduce cutting vibration and improve surface quality.

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!