High precision customized helical gears for various industrial machinery requirements

Jinjiang Feida Machinery specializes in OEM and ODM helical gears, which feature smooth engagement, lower noise, and high load-carrying capacity.

With ISO9001:2015 certification, advanced technology, and equipment covering hobbing, gear shaping, gear grinding, heat treatment and CNC machining, we can support projects from sample development to batch production.

Basic Structure

Because the teeth gradually enter and leave engagement along the face width, helical gears generally provide smoother meshing than spur gears. Their main components are similar to those of other cylindrical gears and usually include addendum, dedendum, tooth flank, pitch circle, face width, and helix angle.

Material Selection for Different Operating Conditions

Operating Condition	Common Material Choices	Reason for Selection
Low speed, light load, cost-sensitive	45 steel, cast iron	Relatively low cost and adequate strength for general applications
General industrial gear reducers	40Cr, 35CrMo	Good overall strength and toughness
Medium- to high-load, high-speed transmission	20CrMnTi, 20CrMo	Suitable for carburizing and quenching; wear-resistant surfaces and tough cores
Heavy-duty, high-reliability gearboxes	20CrNiMo, 18CrNiMo7-6	Good strength, toughness, and fatigue resistance
Low-noise, light-load transmission	PA, POM	Lightweight, quiet, and offers good frictional properties
Special wear-resistant or corrosion-resistant applications	Bronze, PEEK, and others	Selected according to friction, temperature, and chemical-environment requirements

Manufacturing Process

Raw Material Selection → Forging → Turning → Gear Hobbing → Heat Treatment → Gear Grinding → Inspection → Packaging

Quality Control & Certification

The Feida production process strictly follows its own quality system in accordance with ISO 9001:2015. Rigorous quality inspection is carried out at every step, right from raw material selection to final packing, including incoming material inspection, in-process monitoring, finished product testing, and pre-shipment inspection.

So far, Feida has cooperated with many well-known domestic and overseas companies such as Hitachi Energy, Zoomlion, XCMG, FAW, CATL and XGMA. It received the Supplier Excellence Award from XGMA from 2009 to 2013 and again in 2018.

Application Areas

Automotive transmissions

Used to transmit power from the engine or motor while reducing noise and improving driving performance.

Industrial gear reducers

Reduce rotational speed and increase output torque for conveyors, production machinery, and other equipment.

Machine tools

Used in spindles, feed systems, and other mechanisms requiring stable transmission.

Lifting and conveying equipment

Provide reliable power transmission under substantial loads.

Robotics and automation equipment

Used in precision drives, robotic joints, and motion-control systems.

Wind power and energy equipment

Used in certain gearboxes to transmit high power.

Shipping

Feida has a mature logistics system and import/export services. We support express delivery via UPS, DHL, FedEx and others, as well as air and sea freight, offering worldwide delivery.

Frequently Asked Questions

What is the difference between helical gears and spur gears?

Comparison Item	Helical Gear	Spur Gear
Tooth direction	At an angle to the gear axis	Parallel to the gear axis
Meshing process	Gradual engagement	Relatively sudden engagement
Transmission smoothness	Generally better	Moderate
Noise level	Generally lower	Generally higher
Load-carrying capacity	Generally higher	Moderate
Axial force	Present	Ideally absent
Manufacturing difficulty	Higher	Lower
Manufacturing cost	Relatively higher	Relatively lower
Typical applications	Automotive transmissions, gear reducers, industrial equipment	Simple machinery, low-speed drives, instruments

What are your customization options?

Customization is available for gear parameters (module, number of teeth, helix angle, pressure angle, tooth width), mounting structure, materials, heat treatment, precision, and surface treatment.

What are the helix directions of helical gears?

Helical gears are usually divided into left-handed and right-handed types. The helix direction must be selected according to the gear arrangement, shaft layout, and meshing requirements. For parallel-shaft helical gear transmission, a pair typically consists of gears with opposite helix directions.

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Metal Helical Gears

The distinct advantages of metal helical gears from Feida Machinery factory are high load capacity,smooth operation,and low noise.For customization,pls send drawings or samples to us!

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Plastic Helical Gears

High quality raw materials,professional production,and strict quality control allow Feida Machinery factory to supply high-class plastic helical gears to our clients at home and abroad.Whether you have detailed drawings or actual samples, we can work with you to bring your vision to life!

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