This helical gear is manufactured from 20MnCr5, a material commonly used for gears due to its excellent hardenability and toughness. It undergoes carburizing and quenching heat treatment, resulting in a surface hardness of 58–62 HRC, a core hardness of 30–42 HRC, and an effective case depth of 0.30–0.60 mm. This process ensures high wear resistance and bending fatigue strength for the tooth surfaces while maintaining core toughness to prevent tooth breakage under impact loads. With an accuracy grade of 8—representing a mid-range precision level—the gear ensures stable equipment operation and offers excellent cost-effectiveness, providing customers with a transmission solution that balances performance and economy.
Custom Gear Helical Gear
Specification
Application
Gearbox
Material
20MnCr5
Heat Treatment
Case carburized; surface hardness 58–62 HRC; core hardness 30–42 HRC
Accuracy
Grade 8
Applications Of Helical Gears
Helical gears are commonly used in gearboxes. Helical gear reducers are among the most widely used types of speed reducers in the industrial sector, favored for their smooth operation, high transmission efficiency, and robust, durable construction. Featuring a helical tooth design, they ensure smooth torque transmission across various operating conditions, while offering low noise levels and reliable performance.
Helical gear reducers are extensively used across diverse industries and types of machinery, including: material handling equipment, packaging machinery, agitators and mixing equipment, pumps and compressors, extruders, printing equipment, CNC machinery and robotics, and industrial automation power transmission systems.
Production process
6-Step Production Process
Forging
Turning
Gear Cutting
Heat Treatment
ID & OD & Surface Grinding
Tooth Grinding
Forging
When gears need high performance that needs to withstand high loads, high stress, impact loads or fatigue loads, forgings are suggested to use. Forging allows metal fibers to be continuously distributed along the gear profile, significantly improving root strength and fatigue life.
Turning
This is the process of cutting and shaping solid materials into precise parts. It uses tools like lathes, mills, and drills to remove excess material. Machining transforms a simple block of metal into a finished, functional component.
Gear Cutting
Gear Cutting includes all processes to create gear teeth after rough or fine machining. It shapes teeth to ensure smooth and efficient power transfer for performance, strength and cost efficiency.
Heat Treatment
Gears need to be running with two gears or above two gears, that makes them easy to be worn-out. That’s why most types of gears need to be harden through heat treatment.
ID & OD & Surface Grinding
ID grinding, OD grinding, Surface grinding are all belonging to CNC grinding which are the foundational precision abrasive machining processes used to achieve exceptional dimensional accuracy and surface finishes, especially on hardened materials.
Tooth Grinding
Tooth Grinding are the final processes are applied after heat treatment to correct distortion, improve geometry, and achieve the final surface finish necessary for quiet, efficient power transmission.
Inspection
Strict Quality Inspection
Dimension Inspection
Material Inspection
Heat Treatment Testing
UT & MT Testing
Meshing Testing
Accuracy Testing
Dimension Inspection
Material Inspection
Heat Treatment Testing
UT & MT Testing
Meshing Testing
Accuracy Testing
Packages
Professional Packaging Safe Arrival
Customized cost-effective packages for products protection. We select multi-model solutions, combining air, sea, or land freight for the optimal balance of cost, speed, and reliability.
Inner Package
Out Package
Carton
Wooden Package
Similar products
You May Be Interested In
Small Helical Gear Used In Planetary Gearbox
- Material: 16MnCr5
- Heat treatment: Carburizing 58-62HRC
- Accuracy: ISO6
Precision Helical Gear Shaft For Gearboxes
- Material: 20CrMnTi
- Heat treatment: Carburizing 58-62HRC
- Accuracy: ISO 7
Helical Gear Shaft For Drive Motor
- Material: 20CrMnTi
- Heat treatment: Carburization 58-62HRC
- Accuracy: DIN 5
Double Helical Gears
- Material: 20CrMnTi
- Heat treatment: Carburizing and quenching followed by tempering at 180-220℃
- Accuracy: Grade 6
Your Precision
Transmission Partner
Do you have drawings to be implemented, or problems to be solved? Please feel free to contact us. From initial inquiry and technical specification confirmation to production and delivery, our dedicated team will provide you with one-on-one service, ensuring that every step meets your stringent requirements for precision.
Contact Us