Spiral Bevel Gears

Spiral bevel gears offered by Feida Machinery factory have teeth that are angled in a spiral pattern around the gear's face and are used to change the direction of force transmission between shafts that intersect at an angle of 90°.

The spiral pattern design allows the gears to have smoother operation,lower noise & vibration,higher load-bearing capacity,etc.

1. Smoother Transmission: Torque and load fluctuations are generally reduced during meshing.

2. Lower Noise: The impact between mating teeth is reduced, which is particularly important at high rotational speeds.

3. Higher Load-Carrying Capacity: For similar overall dimensions, spiral bevel gears can generally provide better load-carrying performance.

4. Better High-Speed Performance: Are commonly used in high-speed applications such as automotive and aerospace transmissions.

5. Good Service Life: With appropriate design, materials, heat treatment, lubrication, and assembly accuracy, can achieve long fatigue life.

Main Parameters

Module(m): A larger module generally means a larger gear and, under otherwise similar conditions, a stronger tooth.

Number of Teeth(z): Determines the gear ratio and gear size.

Pitch cone angle(δ): Determines the taper of the bevel gear.

Spiral angle(β): Determines the inclination of the tooth lines.

Face width (b): Affects the meshing width and load-carrying capacity.

Pressure angle(a): Determines the direction of the tooth force; 20° is commonly used.

Basic Structure

Our Spiral bevel gears consist of gear body,gear teeth,large end and small end, face width,and shaft hole and mounting structure.

Gear Body: The gear body supports the teeth and transmits loads between the gear and the shaft. It must have sufficient strength and stiffness to withstand operating loads.

Gear Teeth: Have a curved and inclined tooth trace across the face width.

Large End and Small End

Large end: The end closer to the outside diameter.

Small end: The end closer to the apex of the pitch cone.

Face Width: Determines the effective area available for load transmission.

Production Process and Quality Control

Unlike ordinary cylindrical gears, spiral bevel gears have teeth located on an imaginary conical surface and feature a spiral tooth trace. This complex three-dimensional geometry makes their manufacturing considerably more complicated than that of ordinary cylindrical gears.

Feida's modern production processes commonly include:

Raw materials preparation

Forging

Turning

Milling

Heat Treatment

Grinding

Inspection

Packaging

For quality control,Feida is certified under ISO 9001: 2015 quality management system, which ensures rigorous quality control throughout the production process .

Applications

Our spiral bevel gears are widely used in many fields due to their high load-carrying capacity, smooth transmission, and low noise. Their main application areas include:

Automotive industry

This is the most significant application. They are primarily used in the final drive of vehicle drive axles, as well as in steering mechanisms. They cover light, medium, and heavy trucks.

Aerospace

As key components of main transmission elements in aircraft, helicopters, etc., they are used in aero-engines, landing gear, and other core drivetrain systems.

Construction and mining machinery

Widely used in drive axles and transmission systems of construction equipment (e.g., cranes, hoists) and mining machinery (e.g., crushers, ball mills).

General industrial machinery

Used as core components in various spiral bevel gear reducers, they are applied in metallurgy, chemical, building materials, food, pharmaceutical, environmental protection, and many other industries.

Energy and marine

Applied in wind turbine pitch control systems, oil drilling rigs, and power plants of ships and submarines.

Certifications

With excellent quality and best price ,Our products have been recognized by customers both at home and abroad.

Company information

Our factory has over 15 years working experience in designing, manufacturing of transmission parts,precision parts, and sheet metal parts, employs more than 150 workers , including more than 20 technical staffs and QC staffs. Its total area is up to 45000 square meters.

About our capacity: We offer a wide range of machining capabilities including CNC milling, CNC turning, CNC grinding, wire EDM,drilling, tapping, welding,gear hobbing, gear milling, gear shaping, gear broaching, gear shaving, gear grinding and gear lapping.Annual production can reach up to 15,000 tons.