Large industrial gears
Large industrial gears are gears with a diameter of usually more than 1 meter and a modulus (M) ≥ 5, which are key components used in heavy machinery transmission systems. Their main functions are to transmit power, adjust speed, change torque direction, and ensure stable operation of mechanical equipment under extreme loads. Compared with ordinary gears, large industrial gears have higher load-bearing capacity, longer service life and stronger fatigue resistance.
As a professional industrial gear manufacturer, Palet provides large industrial gear processing and customization services to global customers with advanced technology, precision processing equipment and rich industry experience to meet the stringent needs of different industries.
1.Parameters of large industrial gears
Module: determines the size of gear teeth. The module of large gears is usually between 5 and 50.
Teeth Count: affects the transmission ratio. The number of teeth of large gears can reach 100 to 500 or even more.
Pressure angle: commonly 20°, heavy gears may use 25° to improve load-bearing capacity.
Accuracy level: divided according to ISO, DIN, and AGMA standards, large gears usually require DIN grade 6 to grade 3 accuracy.
Material: commonly used alloy steel (42CrMo, 20CrMnTi), cast steel (ZG310-570) or stainless steel, special working conditions may use nickel-based alloys.
2.Manufacturing process of large industrial gears
●Material selection
Alloy steel: high strength and high toughness, suitable for heavy-duty gears.
Cast steel: used for super-large gears, such as the gear ring of mining machinery.
●Heat treatment process
Carburizing and quenching: improve surface hardness (HRC58-62) and enhance wear resistance.
Nitriding treatment: improve fatigue resistance, suitable for wind power gears.
Quenching and tempering treatment: optimize core toughness and prevent gear breakage.
●Precision machining technology
CNC gear hobbing/gear shaping: use high-end machine tools to ensure tooth shape accuracy.
Gear grinding: use CNC forming gear grinding machine to make the gear accuracy reach DIN level 3 or above.
Tooth surface modification: reduce meshing noise and improve transmission efficiency through topological optimization.
●Quality inspection
Gear measurement center: detect tooth shape and tooth direction errors.
Three-coordinate measuring machine: Verify the overall geometric accuracy of the gear.
Ultrasonic flaw detection: Detect internal defects and ensure that the material is free of cracks and pores.
3.Why choose us to customize large industrial gears?
In the field of industrial transmission, the quality of large gears directly affects the operating efficiency, stability and service life of the equipment. Faced with the needs of high load and high precision, PALET has become a trusted gear customization partner for global customers with its advanced manufacturing technology, strict quality control and rich industry experience.
●Industry-leading manufacturing capabilities
Super-large size processing: large gears with a diameter of 1~5 meters and a module of M5~50 can be produced to meet the needs of heavy equipment.
Complex tooth shape customization: non-standard structures such as helical gears, herringbone gears, worm gears, planetary gears, etc. can be processed to adapt to special working conditions.
●Precision heat treatment technology:
Carburizing and quenching (surface hardness HRC58-62)
Nitriding treatment (improve fatigue life)
Tempering (optimize core toughness)
●Customized service and quick response
One-stop service from design to delivery:
Demand analysis: recommend the best solution based on the working conditions (load, speed, environment).
Optimized design: Finite element analysis (FEA) is used to optimize the tooth shape and improve the load-bearing capacity.
Flexible production: support small batch trial production + large batch production, shorten the delivery cycle.
After-sales support: provide installation guidance, wear detection, gear repair and other value-added services.
●Efficient delivery capability:
Standard gear: 4~8 weeks
Non-standard customization: 8~12 weeks (depending on complexity)
Urgent order: can be expedited