Changsha Eagle Machinery Equipment Co., Ltd. is a professional Chinese OEM gear factory.
We produce high-precision custom gears, gear shafts and large girth gears up to 4000mm diameter for mining, cement and heavy machinery industries.
All transmission parts are customized strictly per your drawings with strict QC and factory competitive price.
Main Products: spur, helical, bevel, planetary gears & custom spline/keyed gear shafts
Available Materials: carbon steel, alloy steel, stainless steel
Our Products
Reliable Gear Solutions for Heavy Industries!
Spur Gears
High-precision custom spur gears engineered for reliable torque transmission. Available in various modules and carbon/alloy steels tailored to your blueprints.
External ring gears
Specializing in large-scale internal and external gear rings up to 4 meters in diameter. Perfect for heavy industries like mining, cement, and wind power.
Helical Gears
Precision-ground helical gears designed for smoother, quieter, and high-load industrial applications. Fully customized heat treatment and tooth profiles available.
Sprockets
Specializing in heavy‑duty custom sprockets for heavy‑load transmission applications. Available in various sizes and alloy steel materials, well‑suited for mining, cement, material handling and other heavy‑industry working conditions.
Bevel Gears
Heavy-duty straight and spiral bevel gears for efficient right-angle power transmission. Backed by rigorous inspection for exceptional wear resistance.
Gear shafts
Integrated gear shafts and pinion shafts engineered with high fatigue strength and precision tolerance. Custom machined to meet your toughest operating conditions.
RECENT NEWS
- Spur or Helical Gearbox: Which Is Best for Low-Noise Heavy-Duty Operation?
Spur or helical gearbox? The “right” answer usually shows up on the shop floor—not in a textbook. Choosing between a spur gearbox and a helical gearbox is one of the most common dilemmas for mechanical engineers and plant maintenance teams. While textbooks offer theoretical guidelines, the best gearbox selection always comes down to real-world shop-floor… Read more: Spur or Helical Gearbox: Which Is Best for Low-Noise Heavy-Duty Operation? - Why Do Modern Gearbox Failures Happen Due to Poor Micro-Geometry Design?
Some gear failures don’t start at the tooth root. They start in the design office—with ignored micro-geometry. Many premature gear gearbox failures are not caused by operational wear, overloads, or manufacturing defects—they stem from overlooked micro-geometry errors in the initial design phase. Countless warranty issues, excessive NVH (noise, vibration, and harshness), and unexpected component breakdowns… Read more: Why Do Modern Gearbox Failures Happen Due to Poor Micro-Geometry Design? - What Really Controls Gear Friction: Material, Surface Texture, or Lubricant?
Think harder gear materials guarantee lower friction? Think again. Harder gear material, lower friction — it sounds logical, but in real gearboxes the equation rarely holds. Many manufacturers upgrade to high-hardness steels expecting efficiency gains, only to measure zero change in friction or energy loss. The reason is tribology: friction is a system-level phenomenon, not… Read more: What Really Controls Gear Friction: Material, Surface Texture, or Lubricant?