Which Gear is the Strongest?

Among gear types, helical gears are considered to be one of the strongest.

Compared to spur gears, helical gears have teeth arranged at an angle, which results in a larger contact area and a smoother meshing process, reducing instantaneous impact and noise. Due to their large contact area, helical gears can withstand higher loads, making them excellent in high-load and high-speed transmissions.

Herringbone gears also have a strong load-bearing capacity. Herringbone gears are a modified type of helical gear with teeth in a "V" shape. This design allows both sides of the gear to contact the mating gear simultaneously, increasing the meshing contact area and strength, making them particularly suitable for high-load, high-impact working environments.

The strength of a gear depends on its material, design, and manufacturing process.

High-strength alloy steel, carburized steel, and other materials are commonly used in gear manufacturing, improving the gears hardness and wear resistance, further enhancing its load-bearing capacity and service life. Therefore, helical gears and herringbone gears are often the preferred choice in high-strength transmission systems.