spline gear shaft-Manufacturer of gears, gear shafts, gear wheels, couplings, rubber rollers, and custom parts for engineering machinery

1. Overview: Heavy-Duty Spline Gear Shafts

Our heavy-duty spline gear shafts are core transmission components for mining equipment, ball mills, and large reducers. Integrating spline and gear structures in one part, they deliver high coaxiality, smooth meshing, and reliable power transmission under the most demanding conditions.

2. Premium Alloy Steel & Forged Billets

Manufactured from premium alloy steel forged billets such as 40Cr and 20CrMnTi, providing excellent strength and toughness as the foundation for long service life.

3. Complete Heat Treatment Process

Each shaft undergoes quenching and tempering, carburizing, and quenching processes to achieve high surface hardness and strong core toughness, maximizing wear resistance and load capacity.

4. Precision Hobbing & Gear Grinding

Gear teeth are produced through precision hobbing and gear grinding on full CNC equipment, ensuring accurate tooth profiles, tight tolerances, and smooth, quiet meshing.

5. Gold Oxidation Surface Protection

The surface features a gold oxidation protective treatment that effectively prevents rust and enhances wear resistance, while also providing a clean, identifiable finish for industrial parts.

6. Key Features & Advantages

High coaxiality, smooth meshing, high torque and impact load capacity, excellent wear resistance, anti-corrosion surface, and stable long-term performance.

7. Specifications & Custom Manufacturing

Supports standard parts as well as non-standard custom manufacturing per drawings or samples — module, tooth count, spline parameters, and hardness grade can be adjusted according to customer requirements.

8. Applications: Mining, Metallurgy & Building Materials

Widely used in mining crushers, ball mills, beneficiation equipment, and heavy reducers, as well as equipment matching and spare part replacement across mining, metallurgy, and building materials industries.

9. Quality Inspection: Ultrasonic & Magnetic Particle

Finished products are checked by ultrasonic flaw detection, and tooth surfaces undergo magnetic particle inspection, ensuring defect-free, high-quality delivery.