Spiral Bevel Gear (Helical Bevel Gear)

As one of the leading spiral gear manufacturers, suppliers, and exporters of mechanical products, We offer spiral gear and many other products.

Please contact us for details.

Mail: [email protected]

Manufacturer supplier exporter of spiral gear.

Spiral Bevel Gear (Helical Bevel Gear)

Spiral bevel gears are a type of bevel gear used to transmit power between two intersecting shafts operating at an angle other than 90 degrees. They are designed with spiral-shaped teeth that mesh together to transfer rotational motion and torque between the shafts.

Spiral bevel gears are commonly used in applications requiring high torque and precise motion control, such as automotive differentials, aerospace systems, and industrial machinery. They are also used in applications where noise and vibration must be kept to a minimum, as the spiral shape of the teeth allows for a smooth and quiet operation.

The manufacturing process for spiral bevel gears involves cutting the gear teeth into the gear blank using specialized cutting tools. The spiral shape of the teeth allows for smooth and even engagement between the gears, reducing noise and vibration during operation. Depending on the application requirements, spiral bevel bags can be made from various materials, including steel, brass, bronze, and plastic.

Spiral Bevel Gear Advantages:

  • Higher Efficiency – The calculated efficiency of our spiral bevel gear sets is 96% to 98%, which is greater than that of other right-angle gear sets. (The efficiency depends on the quality number, ratio, duty cycle, and other factors.) this means more power from the prime mover is used to perform work and not generate heat.
  • Greater Power Density – Spiral bevel gears are more compact for their rated power than the other right-angle gears.
  • Smaller Space Claim (volume) –Their higher power density means the gearboxes that use spiral bevel gears can be designed to be smaller than transmissions that do not incorporate them. This results in lower weight, less space, and lower overall cost.
  • Minimal Vibration – The spiral bevel gear teeth’ shape allows the gears to engage each other gradually and smoother than some alternative options. Therefore, a spiral bevel gear set will generate less vibration than different right-angle bevel gear sets with the same rating and similar finishing of their teeth.
  • Less Heat – The most significant source of power loss (efficiency) in a bevel gear set is heat generated by the interaction of the gear teeth. The lower relative heat reduces the oil’s need for cooling and improves the lubrication’s working life.
  • Higher Torque  – A spiral bevel gear has more surface area in contact than a straight or zero bevel for the same pitch diameter. The larger contact area means more power can be transmitted without exceeding the allowable stress of the alloy steel.
  • Better Life – By distributing the load over a larger area, the spiral bevel gear will result in relatively lower contact stress in the gear teeth and a lower bending moment at their root. This gives the spiral bevel a longer design life (pitting and bending) than the other types of right-angle bevel gears of the same size.
  • Higher Speed – The higher-quality spiral bevel gears can be operated at relatively high speeds.


Spiral Bevel Gear Application:

Automotive differentials: Spiral bevel gears are commonly used in automotive differentials to transmit power from the engine to the wheels. They are designed to handle high torque loads and provide precise motion control, allowing smooth and efficient operation.

Aerospace systems: Spiral bevel gears are used in various aerospace systems, including helicopter rotor drives, aircraft landing gear, and flap actuation systems. They are designed to operate smoothly and quietly, even at high speeds and under heavy loads, making them well-suited for aerospace applications.

Industrial machinery: Spiral bevel gears are used in various industrial machinery, including machine tools, printing presses, and robotics. They are designed to provide precise motion control and high torque transmission, allowing for efficient and reliable operation.

Marine propulsion systems: Spiral bevel gears are used in marine propulsion systems to transmit power from the engine to the propeller. They are designed to operate smoothly and efficiently, even in harsh marine environments.

Mining equipment: Spiral bevel gears are used in mining equipment, such as conveyors, crushers, and hoists, to transmit power and provide precise motion control. They are designed to handle heavy loads and provide reliable operation in challenging mining environments.

Power generation equipment: Spiral bevel gears are used in power generation equipment, such as wind turbines and hydroelectric generators, to transmit power from the rotor to the generator. They are designed to operate smoothly and efficiently, even under high wind or water flow conditions.



We are one of the best spiral miter gear suppliers. We can offer wide spiral miter gear stock. We have exported our products to clients around the world and earned a good reputation because of our superior product quality and after-sales service. We warmly welcome customers both at home and abroad to contact us to negotiate business, exchange information, and cooperate with us!


The Manufacturing Process For Spiral Gears Typically Includes The Following Steps:


  • Design: The first step in the manufacturing process is to design the spiral gear. This involves determining the size, shape, and material of the gear.
  • Machining: The next step is to machine the gear. This involves cutting the teeth on the gear and shaping the gear to its final dimensions.
  • Heat treatment: The gear is then heat treated to harden the teeth and improve the strength of the gear.
  • Surface finishing: The gear is then surface finished to provide a smooth surface finish and reduce friction and wear.

Spiral Gear Application: