For the DFYK280-280 gear reducer, the shaft surface (that is, the tooth surface of the gear) is usually made of high-quality alloy steel and has been treated by carburizing quenching and precision gear grinding processes.
This treatment method makes the tooth surface have extremely high hardness, usually up to HRC54-62, so this type of reducer is also called "hard tooth surface reducer".
Specific material and process analysis
1. Material category: high quality alloy steel
"Hard tooth surface" is a description of gear performance, not a specific steel grade. This type of reducer is generally made of high-performance alloy steel to meet the requirements of heavy load, high speed and long life.
2. Commonly used steel grades
Although the specific material selections of different manufacturers may vary slightly, commonly used alloy steel grades in the industry include:
20CrMnTi: This is the "ace" material for manufacturing heavy-duty, impact-resistant gears. After carburizing and quenching, the tooth surface is extremely hard and wear-resistant, while the center of the gear still maintains good toughness.
42CrMo: A higher performance alloy steel with high strength, high toughness and good hardenability, often used in heavy machinery and large reducers.
3. Core process flow
Carburizing and quenching: This is a surface hardening treatment. Low-carbon alloy steel gears are heated in a carbon-rich medium to allow carbon atoms to penetrate into the surface layer, and then quenched. This allows the tooth surface to obtain high hardness (HRC54-62), while the core remains tough and can withstand impact loads.
Precision gear grinding: After heat treatment, the gears will be precision ground to achieve a very high precision level (such as level 6 precision) to ensure smooth transmission and low noise.
Summary: To sum up, the shaft surface material of the DFYK280-280 reducer is high-quality alloy steel that has undergone special heat treatment, which gives it the excellent characteristics of 'hard tooth surface'. If you want to know the exact steel grade used by a specific brand, it is recommended to consult the official technical manual of the product directly or consult the manufacturer.
