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G400 Gear Hobbing Machine And Worm Gear Machining: The Key Force in Precision Transmission

Views: 150     Author: Site Editor     Publish Time: 2025-06-27      Origin: Site

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Technical Highlights of the G400 Gear Hobbing Machine

In today's advanced manufacturing landscape, ongoing developments in gear production technology are continuously driving the evolution of automation and high-precision equipment. The G400 gear hobbing machine, designed specifically for large-diameter worm gear machining, stands out as a premier CNC solution thanks to its vertical layout, 6-axis linkage, and direct-drive spindle.


The vertical structure of the G400 is particularly well-suited for large worm gears, providing better support for the workpiece's center of gravity, enhancing machining stability, and simplifying loading/unloading operations. Its direct-drive spindle minimizes vibration and backlash caused by traditional gear or belt transmission systems, significantly improving machining accuracy and surface finish. Additionally, the 6-axis linkage system enables the G400 to process complex gear profiles, making it ideal for worm gears and other specialized transmission components.


The G400 supports large module and large-diameter gear hobbing, with a maximum machining diameter of up to 400 mm. Coupled with its powerful torque output, it is fully capable of handling the demanding machining tasks required by high-power mechanical transmission systems.

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Worm Gear Machining: Precision and Complexity Combined

Compared with standard cylindrical gears, worm gears require more complex and precise machining processes. Worm gears are typically paired with worm shafts to form a worm gear drive system, where the precision, surface quality, and meshing characteristics of the gear directly affect the efficiency and lifespan of the entire transmission system.


The G400 offers several advantages in worm gear machining:

1. High-Precision CNC System

Equipped with high-performance control systems such as SIEMENS 840D or FANUC 31i, the G400 ensures micron-level precision in profile, lead, and pitch error control, keeping all parameters well within tight tolerances.

2. Intelligent Compensation Technology

The machine features automatic thermal compensation and error self-correction functions, effectively managing structural deformation caused by prolonged machining and maintaining consistent accuracy.

3. Powerful Cutting Capability

With a high-rigidity machine bed and direct-drive spindle, the G400 supports high-efficiency and high-torque hobbing, achieving over 30% improvement in productivity compared to conventional equipment.

4. Adaptive Tool Path Optimization

Integrated with CAD/CAM systems, the G400 automatically generates optimized tool paths based on specific worm gear parameters, improving production efficiency and extending tool life.

Typical Applications of Worm Gears

Thanks to their compact structure, smooth transmission, and self-locking ability, worm gears are widely used in mechanical systems that require high reduction ratios and reverse self-locking. Key application scenarios include:

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1. Lifting Equipment

In elevators, car lifts, and stage machinery, worm gear drives offer reliable self-locking to prevent load backsliding, ensuring safety and operational reliability.

2. Heavy-Duty Transmission Systems

Worm gears are ideal for mining machinery, metallurgical equipment, and die-casting machines, where high torque and low-speed output are required under heavy load conditions.

3. Automation Equipment

In robotics, CNC rotary tables, and packaging machinery, worm gear drives provide high positional accuracy and strong reverse self-locking, making them essential in servo-driven automation systems.

4. Energy Equipment

Used in wind turbine pitch systems and hydropower gate control mechanisms, worm gears provide long-term, stable transmission with high reduction ratios in critical energy applications.

5. Transportation and Logistics

Worm gear systems are used in railway switchgear, marine deck machinery, and other key transport components, delivering secure and stable power transmission with inherent self-locking.

The Importance of Worm Gears in Mechanical Transmission

As a vital form of mechanical transmission, worm gear drives complement other systems such as spur gears, belt drives, and chain drives. They offer several unique advantages that make them indispensable in engineering applications:

1. Achieving High Reduction Ratios

Unlike standard gear systems, worm drives can achieve reduction ratios of up to 1:100 or more in a compact design—ideal for space-constrained, high-torque, low-speed environments.

2. Self-Locking Capability

Worm shafts can easily drive worm gears, but the reverse motion is extremely difficult—this “one-way drive” mechanism inherently prevents back-driving, enhancing operational safety.

3. Smooth and Quiet Operation

Due to the sliding contact between worm and gear, the transmission process is continuous and low-impact, making it especially suitable for noise-sensitive environments such as medical devices or precision imaging systems.

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4. Shock Absorption and High Impact Resistance

The elasticity and sliding nature of worm gear drives allow them to absorb shocks and vibrations, extending the service life of the machinery.


5. The Future of High-End Worm Gear Manufacturing with the G400

With the rising demand for smart manufacturing and high-performance equipment, worm gears as essential transmission components—are receiving increased attention for their machining quality and reliability. The G400 gear hobbing machine, with its precision, efficiency, and stability, has become a core solution for large worm gear production.


Looking ahead, the G400 will further integrate with automation systems and MES platforms, enabling intelligent, connected production lines that boost manufacturing efficiency and support the broader transformation of the transmission industry.


In high-precision, high-load, and high-safety engineering applications, the G400 representing the latest in advanced hobbing technology will continue to play a vital role, pushing the boundaries of worm gear manufacturing to new heights.


Wuxi Geepro Gear Technology Co.,Ltd. was founded in 2016, with the research and development, processing and sales of gears and gear machinery and equipment as the main business direction.

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