Straight Teeth Ground Gears-40Cr DIN6

Straight Teeth Ground Gears-40Cr DIN6 is a type of spur gear made of 40Cr material with precision conforming to the DIN6 standard. The following is a detailed introduction:

Material Characteristics:

40Cr is a medium-carbon quenched and tempered steel. The "40" indicates that the average carbon content of the steel is 0.40%, and "Cr" represents the main alloying element chromium, with an average content of less than 1.5%. After quenching and tempering treatment, this steel has excellent comprehensive mechanical properties and good hardenability. In addition to quenching and tempering, it is also suitable for cyaniding and high-frequency quenching treatments, and has good machinability.

Accuracy Class:

The DIN standard classifies gear accuracy levels from 5 to 10, where level 5 is the highest and level 10 is the lowest. DIN6 is a high-precision level, classified as a grinding grade. Gears of this level have extremely small tooth profile errors and pitch errors, with smooth tooth surfaces, ensuring efficient and stable transmission with almost no friction or noise.

Processing Technology:

It usually undergoes processing procedures such as quenching and tempering, high-frequency quenching of tooth surfaces, tooth surface grinding, and four-sided grinding to ensure the accuracy and surface quality of the gear.

Application Fields:

It is commonly used in occasions with high precision requirements, such as precision machine tools, robots, aerospace equipment, and precision transmission systems.

Performance Advantages:

The tooth profile complies with DIN standards, enabling stable transmission, low noise, and minimal wear. It can improve the overall mechanical performance and stability, making it suitable for equipment with high requirements for transmission accuracy and stability.

Gear lapping machine

A gear grinding machine is a specialized equipment for precision machining of gears. It performs micro-cutting or grinding on gear tooth surfaces using abrasives to correct errors generated during gear processing, improve tooth surface roughness, and ultimately enhance the transmission accuracy, stability, and service life of gears. It is widely used in automotive, machine tool, wind power, aerospace, and other fields with high requirements for gear performance.

Core Functions and Roles

1. Precision Correction: Through precise grinding, it reduces gear errors such as pitch error, tooth profile error, and tooth direction error, enabling gears to reach higher precision grades (e.g., ISO 3-5, AGMA 10-12).
2. Surface Quality Optimization: Removes residual machining marks on tooth surfaces (e.g., tool marks after hobbing or shaping) and reduces surface roughness (typically reachable Ra 0.4-0.8μm), minimizing friction and noise during transmission.
3. Performance Enhancement: Ground gears achieve smoother meshing and higher transmission efficiency. Due to improved wear resistance of tooth surfaces, their service life is significantly extended.

Gear grinding machines are mainly used for the final finishing of gears, especially suitable for the following scenarios:

• High-precision transmission gears (e.g., machine tool spindle gears, robot reducer gears);
• Gears requiring high speed and low noise (e.g., automotive transmission gears, wind power gearbox gears);
• Precision correction and surface polishing of hard-faced gears (with hardness HRC 58-62 after quenching).

By selectively choosing machine types and process parameters, gear grinding machines can meet the precision machining needs of gears with different moduli and types (spur, helical, bevel gears, etc.).

Coordinate Measuring Technology relies on Coordinate Measuring Machines (CMMs) to accurately acquire three-dimensional coordinate information on the surface of workpieces, enabling high-precision detection and quality evaluation of the workpiece's geometric parameters (such as size, shape, and positional relationships). It is one of the core technologies in modern manufacturing that ensures product precision and consistency.

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Kunshan Devotec Automation Co., Ltd. was established in 2012, but its origins trace back to an initial investment by the German company WMH HERION in Qingdao, Shandong Province in 2007. Since then, we have accumulated extensive experience in engineering, manufacturing, and quality control. As a specialist in drive technology, Kunshan Devotec Automation focuses on the production of high-precision gear racks, gears, pinions, gearboxes, linear guideways, and other linear transmission components.

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